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Keough JR, Irvine B, Kelly D, Wrightson J, Comaduran Marquez D, Kinney-Lang E, Kirton A. Fatigue in children using motor imagery and P300 brain-computer interfaces. J Neuroeng Rehabil 2024; 21:61. [PMID: 38658998 PMCID: PMC11040843 DOI: 10.1186/s12984-024-01349-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 03/25/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND Brain-computer interface (BCI) technology offers children with quadriplegic cerebral palsy unique opportunities for communication, environmental exploration, learning, and game play. Research in adults demonstrates a negative impact of fatigue on BCI enjoyment, while effects on BCI performance are variable. To date, there have been no pediatric studies of BCI fatigue. The purpose of this study was to assess the effects of two different BCI paradigms, motor imagery and visual P300, on the development of self-reported fatigue and an electroencephalography (EEG) biomarker of fatigue in typically developing children. METHODS Thirty-seven typically-developing school-aged children were recruited to a prospective, crossover study. Participants attended three sessions: (A) motor imagery-BCI, (B) visual P300-BCI, and (C) video viewing (control). The motor imagery task involved an imagined left- or right-hand squeeze. The P300 task involved attending to one square on a 3 × 3 grid during a random single flash sequence. Each paradigm had respective calibration periods and a similar visual counting game. Primary outcomes were self-reported fatigue and the power of the EEG alpha band both collected during resting-state periods pre- and post-task. Self-reported fatigue was measured using a 10-point visual analog scale. EEG alpha band power was calculated as the integrated power spectral density from 8 to 12 Hz of the EEG spectrum. RESULTS Thirty-two children completed the protocol (age range 7-16, 63% female). Self-reported fatigue and EEG alpha band power increased across all sessions (F(1,155) = 33.9, p < 0.001; F = 5.0(1,149), p = 0.027 respectively). No differences in fatigue development were observed between session types. There was no correlation between self-reported fatigue and EEG alpha band power change. BCI performance varied between participants and paradigms as expected but was not associated with self-reported fatigue or EEG alpha band power. CONCLUSION Short periods (30-mintues) of BCI use can increase self-reported fatigue and EEG alpha band power to a similar degree in children performing motor imagery and P300 BCI paradigms. Performance was not associated with our measures of fatigue; the impact of fatigue on useability and enjoyment is unclear. Our results reflect the variability of fatigue and the BCI experience more broadly in children and warrant further investigation.
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Affiliation(s)
- Joanna Rg Keough
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Brian Irvine
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Dion Kelly
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - James Wrightson
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Daniel Comaduran Marquez
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Eli Kinney-Lang
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Adam Kirton
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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Fehlings DL, Zarrei M, Engchuan W, Sondheimer N, Thiruvahindrapuram B, MacDonald JR, Higginbotham EJ, Thapa R, Behlim T, Aimola S, Switzer L, Ng P, Wei J, Danthi PS, Pellecchia G, Lamoureux S, Ho K, Pereira SL, de Rijke J, Sung WWL, Mowjoodi A, Howe JL, Nalpathamkalam T, Manshaei R, Ghaffari S, Whitney J, Patel RV, Hamdan O, Shaath R, Trost B, Knights S, Samdup D, McCormick A, Hunt C, Kirton A, Kawamura A, Mesterman R, Gorter JW, Dlamini N, Merico D, Hilali M, Hirschfeld K, Grover K, Bautista NX, Han K, Marshall CR, Yuen RKC, Subbarao P, Azad MB, Turvey SE, Mandhane P, Moraes TJ, Simons E, Maxwell G, Shevell M, Costain G, Michaud JL, Hamdan FF, Gauthier J, Uguen K, Stavropoulos DJ, Wintle RF, Oskoui M, Scherer SW. Comprehensive whole-genome sequence analyses provide insights into the genomic architecture of cerebral palsy. Nat Genet 2024; 56:585-594. [PMID: 38553553 DOI: 10.1038/s41588-024-01686-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/13/2024] [Indexed: 04/17/2024]
Abstract
We performed whole-genome sequencing (WGS) in 327 children with cerebral palsy (CP) and their biological parents. We classified 37 of 327 (11.3%) children as having pathogenic/likely pathogenic (P/LP) variants and 58 of 327 (17.7%) as having variants of uncertain significance. Multiple classes of P/LP variants included single-nucleotide variants (SNVs)/indels (6.7%), copy number variations (3.4%) and mitochondrial mutations (1.5%). The COL4A1 gene had the most P/LP SNVs. We also analyzed two pediatric control cohorts (n = 203 trios and n = 89 sib-pair families) to provide a baseline for de novo mutation rates and genetic burden analyses, the latter of which demonstrated associations between de novo deleterious variants and genes related to the nervous system. An enrichment analysis revealed previously undescribed plausible candidate CP genes (SMOC1, KDM5B, BCL11A and CYP51A1). A multifactorial CP risk profile and substantial presence of P/LP variants combine to support WGS in the diagnostic work-up across all CP and related phenotypes.
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Affiliation(s)
- Darcy L Fehlings
- Division of Developmental Paediatrics, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mehdi Zarrei
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Worrawat Engchuan
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Neal Sondheimer
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | | | - Jeffrey R MacDonald
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Edward J Higginbotham
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Genome Diagnostics, Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ritesh Thapa
- Division of Developmental Paediatrics, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada
| | - Tarannum Behlim
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Sabrina Aimola
- Division of Developmental Paediatrics, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada
| | - Lauren Switzer
- Division of Developmental Paediatrics, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada
| | - Pamela Ng
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - John Wei
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Prakroothi S Danthi
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Giovanna Pellecchia
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Sylvia Lamoureux
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Karen Ho
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Sergio L Pereira
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jill de Rijke
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Wilson W L Sung
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Alireza Mowjoodi
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jennifer L Howe
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Thomas Nalpathamkalam
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Roozbeh Manshaei
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Ted Rogers Centre for Heart Research, Cardiac Genome Clinic, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Siavash Ghaffari
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Joseph Whitney
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Rohan V Patel
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Omar Hamdan
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Rulan Shaath
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Brett Trost
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Shannon Knights
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Grandview Children's Centre, Oshawa, Ontario, Canada
| | - Dawa Samdup
- Department of Pediatrics, Queen's University, Kingston, Ontario, Canada
| | - Anna McCormick
- Children's Hospital of Eastern Ontario and University of Ottawa, Ottawa, Ontario, Canada
| | - Carolyn Hunt
- Grandview Children's Centre, Oshawa, Ontario, Canada
| | - Adam Kirton
- Department of Pediatrics, Department of Clinical Neuroscience, University of Calgary, Calgary, Alberta, Canada
| | - Anne Kawamura
- Division of Developmental Paediatrics, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ronit Mesterman
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Jan Willem Gorter
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
| | - Nomazulu Dlamini
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
- Neurosciences and Mental Health Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Daniele Merico
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Deep Genomics Inc., Toronto, Ontario, Canada
- Vevo Therapeutics Inc., San Francisco, CA, USA
| | - Murto Hilali
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Kyle Hirschfeld
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Kritika Grover
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Nelson X Bautista
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Kara Han
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Christian R Marshall
- Genome Diagnostics, Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ryan K C Yuen
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Padmaja Subbarao
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Meghan B Azad
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Stuart E Turvey
- Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Piush Mandhane
- Faculty of Medicine & Dentistry, Pediatrics Department, University of Alberta, Edmonton, Alberta, Canada
| | - Theo J Moraes
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Program in Translation Medicine & Division of Respiratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Elinor Simons
- Department of Pediatrics and Child Health, Section of Allergy and Clinical Immunology, University of Manitoba, Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - George Maxwell
- Women's Health Integrated Research Center, Inova Women's Service Line, Inova Health System, Falls Church, VA, USA
| | - Michael Shevell
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
- Departments of Pediatrics and Department of Neurology and Neurosurgery, McGill University, Montréal, Québec, Canada
| | - Gregory Costain
- Department of Paediatrics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
- Genome Diagnostics, Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
- Division of Clinical and Metabolic Genetics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jacques L Michaud
- Departments of Pediatrics and Neurosciences, Université de Montréal, Montréal, Québec, Canada
- CHU Sainte-Justine Azrieli Research Center, Montréal, Québec, Canada
| | - Fadi F Hamdan
- CHU Sainte-Justine Azrieli Research Center, Montréal, Québec, Canada
- Department of Pediatrics, Université de Montréal, Montréal, Québec, Canada
| | - Julie Gauthier
- CHU Sainte-Justine Azrieli Research Center, Montréal, Québec, Canada
- Department of Pediatrics, Université de Montréal, Montréal, Québec, Canada
| | - Kevin Uguen
- CHU Sainte-Justine Azrieli Research Center, Montréal, Québec, Canada
| | - Dimitri J Stavropoulos
- Genome Diagnostics, Department of Paediatric Laboratory Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Richard F Wintle
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Maryam Oskoui
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
- Departments of Pediatrics and Department of Neurology and Neurosurgery, McGill University, Montréal, Québec, Canada
| | - Stephen W Scherer
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada.
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada.
- Department of Molecular Genetics and McLaughlin Centre, University of Toronto, Toronto, Ontario, Canada.
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Fortin O, Husein N, Oskoui M, Shevell MI, Kirton A, Dunbar M. Risk Factors and Outcomes for Cerebral Palsy With Hypoxic-Ischemic Brain Injury Patterns Without Documented Neonatal Encephalopathy. Neurology 2024; 102:e208111. [PMID: 38422458 DOI: 10.1212/wnl.0000000000208111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 11/16/2023] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Perinatal hypoxic-ischemic brain injury is a leading cause of term-born cerebral palsy, the most common lifelong physical disability. Diagnosis is commonly made in the neonatal period by the combination of neonatal encephalopathy (NE) and typical neuroimaging findings. However, children without a history of neonatal encephalopathy may present later in childhood with motor disability and neuroimaging findings consistent with perinatal hypoxic-ischemic injury. We sought to determine the prevalence of such presentations using the retrospective viewpoint of a large multiregional cerebral palsy registry. METHODS Patient cases were extracted from the Canadian Cerebral Palsy Registry with gestational age >36 weeks, an MRI pattern consistent with hypoxic-ischemic injury (HII, acute total, partial prolonged, or combined), and an absence of postnatal cause for HII. Documentation of NE was noted. Maternal-fetal risk factors, labor and delivery, neonatal course, and clinical outcome were extracted. Comparisons were performed using χ2 tests and multivariable logistic regression with multiple imputation. Propensity scores were used to assess for bias. RESULTS Of the 170 children with MRI findings typical for HII, 140 (82.4%, 95% confidence interval [CI] 75.7%-87.7%) had documented NE and 29 (17.0%, 95% CI 11.7%-23.6%) did not. The group without NE had more abnormalities of amniotic fluid volume (odds ratio [OR] 15.8, 95% CI 1.2-835), had fetal growth restriction (OR 4.7, 95% CI 1.0-19.9), had less resuscitation (OR 0.03, 95% CI 0.007-0.08), had higher 5-minute Apgar scores (OR 2.2, 95% CI 1.6-3.0), were less likely to have neonatal seizures (OR 0.004, 95% CI 0.00009-0.03), and did not receive therapeutic hypothermia. MRI was performed at a median 1.1 months (interquartile range [IQR] 0.67-12.8 months) for those with NE and 12.2 months (IQR 6.6-25.9) for those without (p = 0.011). Patterns of injury on MRI were seen in similar proportions. Hemiplegia was more common in those without documented NE (OR 5.1, 95% CI 1.5-16.1); rates of preserved ambulatory function were similar. DISCUSSION Approximately one-sixth of term-born children with an eventual diagnosis of cerebral palsy and MRI findings consistent with perinatal hypoxic-ischemic brain injury do not have documented neonatal encephalopathy, which was associated with abnormalities of fetal growth and amniotic fluid volume, and a less complex neonatal course. Long-term outcomes seem comparable with their peers with encephalopathy. The absence of documented neonatal encephalopathy does not exclude perinatal hypoxic-ischemic injury, which may have occurred antenatally and must be carefully evaluated with MRI.
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Affiliation(s)
- Olivier Fortin
- From the Prenatal Pediatric Institute (O.F.), Children's National Hospital, Washington, DC; Departments of Pediatrics and Neurology/Neurosurgery (O.F., M.O., M.I.S.), McGill University; Research Institute-McGill University Health Centre (N.H., M.O., M.I.S.), Montreal, Quebec; Departments of Pediatrics and Clinical Neurosciences (A.K.); Alberta Children's Hospital Research Institute (A.K., M.D.); and Departments of Pediatrics and Community Health Sciences (M.D.), University of Calgary, Alberta
| | - Nafisa Husein
- From the Prenatal Pediatric Institute (O.F.), Children's National Hospital, Washington, DC; Departments of Pediatrics and Neurology/Neurosurgery (O.F., M.O., M.I.S.), McGill University; Research Institute-McGill University Health Centre (N.H., M.O., M.I.S.), Montreal, Quebec; Departments of Pediatrics and Clinical Neurosciences (A.K.); Alberta Children's Hospital Research Institute (A.K., M.D.); and Departments of Pediatrics and Community Health Sciences (M.D.), University of Calgary, Alberta
| | - Maryam Oskoui
- From the Prenatal Pediatric Institute (O.F.), Children's National Hospital, Washington, DC; Departments of Pediatrics and Neurology/Neurosurgery (O.F., M.O., M.I.S.), McGill University; Research Institute-McGill University Health Centre (N.H., M.O., M.I.S.), Montreal, Quebec; Departments of Pediatrics and Clinical Neurosciences (A.K.); Alberta Children's Hospital Research Institute (A.K., M.D.); and Departments of Pediatrics and Community Health Sciences (M.D.), University of Calgary, Alberta
| | - Michael I Shevell
- From the Prenatal Pediatric Institute (O.F.), Children's National Hospital, Washington, DC; Departments of Pediatrics and Neurology/Neurosurgery (O.F., M.O., M.I.S.), McGill University; Research Institute-McGill University Health Centre (N.H., M.O., M.I.S.), Montreal, Quebec; Departments of Pediatrics and Clinical Neurosciences (A.K.); Alberta Children's Hospital Research Institute (A.K., M.D.); and Departments of Pediatrics and Community Health Sciences (M.D.), University of Calgary, Alberta
| | - Adam Kirton
- From the Prenatal Pediatric Institute (O.F.), Children's National Hospital, Washington, DC; Departments of Pediatrics and Neurology/Neurosurgery (O.F., M.O., M.I.S.), McGill University; Research Institute-McGill University Health Centre (N.H., M.O., M.I.S.), Montreal, Quebec; Departments of Pediatrics and Clinical Neurosciences (A.K.); Alberta Children's Hospital Research Institute (A.K., M.D.); and Departments of Pediatrics and Community Health Sciences (M.D.), University of Calgary, Alberta
| | - Mary Dunbar
- From the Prenatal Pediatric Institute (O.F.), Children's National Hospital, Washington, DC; Departments of Pediatrics and Neurology/Neurosurgery (O.F., M.O., M.I.S.), McGill University; Research Institute-McGill University Health Centre (N.H., M.O., M.I.S.), Montreal, Quebec; Departments of Pediatrics and Clinical Neurosciences (A.K.); Alberta Children's Hospital Research Institute (A.K., M.D.); and Departments of Pediatrics and Community Health Sciences (M.D.), University of Calgary, Alberta
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Marefi A, Husein N, Dunbar M, Dewey D, Letourneau N, Oskoui M, Kirton A, Shevell M. Risk Factors for Term-Born Spastic Diplegic Cerebral Palsy: A Case-Control Study. Pediatr Neurol 2024; 155:26-32. [PMID: 38581726 DOI: 10.1016/j.pediatrneurol.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 01/06/2024] [Accepted: 03/12/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND To identify if a predetermined set of potential risk factors are associated with spastic diplegic cerebral palsy (SDCP) in term-born children. METHODS This is a case-control study with cases (n = 134) extracted from the Canadian Cerebral Palsy Registry (CCPR) and controls (n = 1950) from the Alberta Pregnancy Outcomes and Nutrition (APrON) study. Our primary variable was the SDCP phenotype in term-born children. Possible risk factors were selected a priori and include extreme maternal age (<19 or >35 years), pregnancy complications, maternal disease, substance use, perinatal infection, mode of delivery, perinatal adversity (i.e., neonatal encephalopathy presumably on the basis of intrapartum hypoxia-ischemia), sex, and birth weight. Multivariable analyses were used to calculate odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Multivariable analysis revealed associations between term-born SDCP and pregnancy complications (OR = 4.73; 95% CI = 1.91 to 10.56), maternal disease (OR = 2.52; 95% CI = 1.57 to 3.93), substance use (OR = 3.11; 95% CI = 2.10 to 4.55), perinatal infection (OR = 2.72; 95% CI 1.32 to 5.10), Caesarean section (OR = 2.35; 95% CI = 1.62 to 3.40), and perinatal adversity (OR = 2.91; 95% CI = 1.94 to 4.50). Multiple regression analysis revealed associations between SDCP and pregnancy complications (OR = 3.28; 95% CI 1.20 to 8.15), maternal disease (OR = 2.52; 95% CI 1.50 to 4.12), substance use (OR = 3.59; 95% CI 2.37 to 5.40), perinatal infection (OR = 3.78, 95% CI 1.71 to 7.72), Caesarean section (OR = 2.72; 95% CI 1.82 to 4.03), and perinatal adversity (OR = 4.16; 95% CI 2.67 to 6.70). INTERPRETATION Antenatal (pregnancy complications, maternal disease, substance use) and perinatal (infections, Caesarean section, and perinatal adversity) risk factors are associated with an increased risk of SDCP in term-born children, suggesting variable interactions between risk factors to provide a clinicopathologic framework that is different from SDCP observed in preterm-born children.
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Affiliation(s)
- Amaar Marefi
- Department of Neurology & Neurosurgery, McGill University, Montréal, Québec, Canada; Department of Pediatrics, Montreal Children's Hospital-McGill University Health Center, Montreal, Quebec, Canada
| | - Nafisa Husein
- Department of Neurology & Neurosurgery, McGill University, Montréal, Québec, Canada; Department of Pediatrics, Montreal Children's Hospital-McGill University Health Center, Montreal, Quebec, Canada
| | - Mary Dunbar
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Deborah Dewey
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Community Health Sciences, University of Calgary, Calgary, Alberta
| | - Nicole Letourneau
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Departments of Pediatrics and Community Health Sciences, University of Calgary, Calgary, Alberta; Faculty of Nursing and Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Maryam Oskoui
- Department of Neurology & Neurosurgery, McGill University, Montréal, Québec, Canada; Department of Pediatrics, Montreal Children's Hospital-McGill University Health Center, Montreal, Quebec, Canada; Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Center, Montréal, Québec, Canada
| | - Adam Kirton
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Michael Shevell
- Department of Neurology & Neurosurgery, McGill University, Montréal, Québec, Canada; Department of Pediatrics, Montreal Children's Hospital-McGill University Health Center, Montreal, Quebec, Canada.
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Kirton A, Jordan LC. Stroke in Children: Key Advances in the Field and the Next 20 Years. Stroke 2024; 55:182-185. [PMID: 38134252 DOI: 10.1161/strokeaha.123.044250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Affiliation(s)
- Adam Kirton
- Departments of Pediatrics and Clinical Neurosciences, Alberta Children's Hospital Research Institute, University of Calgary, Canada (A.K.). Department of Pediatrics, Division of Pediatric Neurology, Vanderbilt University Medical Center, Nashville, TN (L.C.J.)
| | - Lori C Jordan
- Departments of Pediatrics and Clinical Neurosciences, Alberta Children's Hospital Research Institute, University of Calgary, Canada (A.K.). Department of Pediatrics, Division of Pediatric Neurology, Vanderbilt University Medical Center, Nashville, TN (L.C.J.)
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Dunbar M, Norris A, Craig BT, Chaput K, Mohammad K, Cole L, Esser MJ, Caughey A, Carlson H, Kirton A. Relationship Between Neonatal Brain Injury and Objective Measures of Head Trauma: A Case-Control Study. Neurology 2023; 101:e2401-e2410. [PMID: 37848334 PMCID: PMC10752635 DOI: 10.1212/wnl.0000000000207766] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 10/03/2023] [Indexed: 10/19/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Neonatal brain injury is a common and devastating diagnosis conferring lifelong challenges for children and families. The role of mechanical forces applied to the head, often referred to as "birth trauma," are often considered although evidence for this association is lacking. The objective of this study was to investigate the association between common types of neonatal brain injury and scalp swelling using a novel method to quantify scalp swelling as an unbiased proxy for mechanical forces applied to the head. METHODS Case-control study using population-based, prospectively collected tertiary care center databases and healthy controls from the Human Connectome Development Project. Included were infants born 32-42 weeks gestational age and MRI in the first 9 days. Outcomes categories included healthy neonates, hypoxic ischemic encephalopathy (HIE) with or without brain injury, or stroke (ischemic or hemorrhagic). Volume of scalp swelling was objectively quantified by a novel imaging method blinded to brain injury. Variables included mode of delivery and use of instrumentation. Statistical tests included Kruskal-Wallis test, chi square, and multivariable and multinomial logistic regression. RESULTS There were 309 infants included (55% male): 72 healthy controls, 77 HIE without brain injury on MRI, 78 HIE with brain injury, and 82 with stroke (60 ischemic, 22 hemorrhagic). Scalp swelling was present in 126 (40.8%, 95% confidence interval [CI] 35.2%-46.5%) with no difference in proportions between outcome groups. Compared to healthy controls, median volume was higher in those with HIE without brain injury (17.5 mL, 95% CI 6.8-28.2), HIE with brain injury (12.1 mL, 95% CI 5.5-18.6), but not ischemic stroke (4.7 mL, 95% CI -1.2-10.6) nor hemorrhagic stroke (8.3 mL, 95% CI -2.2-18.8). Scalp swelling was associated with instrumented delivery (OR 2.1, 95% CI 1.0-4.1), but not associated with increased odds of brain injury in those with HIE (OR 1.5, 95% CI 0.76-3.30). Scalp swelling measures were highly reliable (ICC = 0.97). DISCUSSION "Birth trauma" quantified by scalp swelling volume was more common in infants with difficult deliveries, but not associated with greater odds of brain injury due to hypoxia or stroke. These results may help parents and practitioners to dissociate the appearance of trauma with the risk of brain injury.
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Affiliation(s)
- Mary Dunbar
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Abbey Norris
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Brandon T Craig
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Kathleen Chaput
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Khorshid Mohammad
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Lauran Cole
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Michael J Esser
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Aaron Caughey
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Helen Carlson
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada
| | - Adam Kirton
- From the Department of Pediatrics (M.D., B.T.C., H.C., A.K.), University of Calgary; Calgary Pediatric Stroke Program (M.D., B.T.C., H.C., A.K.); Alberta Children's Hospital Research Institute (M.D., B.T.C., H.C., A.K.); Hotchkiss Brain Institute (M.D., B.T.C., H.C., A.K.); Pediatric Stroke Program (A.N.); Department of Obstetrics and Gynecology (K.C.); Department of Pediatrics (K.M., M.J.E.), University of Calgary; Department of Pediatrics (L.C.), University of Alberta, Edmonton, Canada; Department of Obstetrics and Gynecology (A.C.), Oregon Health & Science University, Portland, OR; and Department of Clinical Neurosciences and Radiology (A.K.), University of Calgary, Alberta, Canada.
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7
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Meghji S, Hilderley AJ, Murias K, Brooks BL, Andersen J, Fehlings D, Dlamini N, Kirton A, Carlson HL. Executive functioning, ADHD symptoms and resting state functional connectivity in children with perinatal stroke. Brain Imaging Behav 2023:10.1007/s11682-023-00827-w. [PMID: 38038867 DOI: 10.1007/s11682-023-00827-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2023] [Indexed: 12/02/2023]
Abstract
Perinatal stroke describes a group of focal, vascular brain injuries that occur early in development, often resulting in lifelong disability. Two types of perinatal stroke predominate, arterial ischemic stroke (AIS) and periventricular venous infarction (PVI). Though perinatal stroke is typically considered a motor disorder, other comorbidities commonly exist including attention-deficit hyperactivity disorder (ADHD) and deficits in executive function. Rates of ADHD symptoms are higher in children with perinatal stroke and deficits in executive function may also occur but underlying mechanisms are not known. We measured resting state functional connectivity in children with perinatal stroke using previously established dorsal attention, frontoparietal, and default mode network seeds. Associations with parental ratings of executive function and ADHD symptoms were examined. A total of 120 participants aged 6-19 years [AIS N = 31; PVI N = 30; Controls N = 59] were recruited. In comparison to typically developing peers, both the AIS and PVI groups showed lower intra- and inter-hemispheric functional connectivity values in the networks investigated. Group differences in between-network connectivity were also demonstrated, showing weaker anticorrelations between task-positive (frontoparietal and dorsal attention) and task-negative (default mode) networks in stroke groups compared to controls. Both within-network and between-network functional connectivity values were highly associated with parental reports of executive function and ADHD symptoms. These results suggest that differences in functional connectivity exist both within and between networks after perinatal stroke, the degree of which is associated with ADHD symptoms and executive function.
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Affiliation(s)
- Suraya Meghji
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, 28 Oki Drive NW, Calgary, AB, Canada
| | - Alicia J Hilderley
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, 28 Oki Drive NW, Calgary, AB, Canada
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Kara Murias
- Alberta Children's Hospital Research Institute, 28 Oki Drive NW, Calgary, AB, Canada
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Brian L Brooks
- Alberta Children's Hospital Research Institute, 28 Oki Drive NW, Calgary, AB, Canada
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- Neurosciences Program, Alberta Children's Hospital, Calgary, AB, Canada
- Department of Psychology, University of Calgary, Calgary, AB, Canada
| | - John Andersen
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Darcy Fehlings
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Nomazulu Dlamini
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
- Children's Stroke Program, Division of Neurology, Hospital for Sick Children, Toronto, ON, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, 28 Oki Drive NW, Calgary, AB, Canada
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- Department of Radiology, University of Calgary, Calgary, AB, Canada
| | - Helen L Carlson
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada.
- Alberta Children's Hospital Research Institute, 28 Oki Drive NW, Calgary, AB, Canada.
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
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8
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Janzen L, Toomey CM, Brunton LK, Condliffe EG, Esau S, Kirton A, Emery CA, Kuntze G. Physical Activity Levels and Adiposity in Ambulant Children and Adolescents With Cerebral Palsy Compared With Their Typically Developing Peers. Pediatr Exerc Sci 2023; 35:225-231. [PMID: 36944367 DOI: 10.1123/pes.2022-0064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 11/25/2022] [Accepted: 12/07/2022] [Indexed: 03/23/2023]
Abstract
PURPOSE This study assessed physical activity (PA) and body composition of ambulatory children and adolescents with cerebral palsy (CP) and their typically developing peers. METHODS Participants included youth with CP (ages 8-18 y and Gross Motor Function Classification System [GMFCS] levels I-III) and their typically developing peers. Outcomes included PA (actigraphy) and fat/lean mass index (FMI/LMI; dual-energy X-ray absorptiometry). Statistical analyses included linear mixed effects models with Bonferroni adjustment. Fixed effects were study group (CP and typically developing); random effects were participant clusters (sex and age). Exploratory analyses included association of body composition and PA, GMFCS level, and CP involvement (unilateral and bilateral). RESULTS Seventy-eight participants (CP: n = 40, girls: n = 29; GMFCS I: n = 20; GMFCS II: n = 14; GMFCS III: n = 6) met inclusion criteria. Individuals with CP had lower moderate to vigorous PA (MVPA; β = -12.5; 98.3% confidence interval, -22.6 to -2.5 min; P = .004) and lower LMI (β = -1.1; 97.5% confidence interval, -2.1 to -0.0 kg/m2; P = .020). Exploratory analyses indicated increased LMI with greater MVPA (P = .001), reduced MVPA for GMFCS II (P = .005) and III (P = .001), increased sedentary time for GMFCS III (P = .006), and greater fat mass index with unilateral motor impairment (P = .026). CONCLUSIONS The findings contribute to the knowledge base of increasing MVPA and LMI deficits with the greater functional impact of CP. Associations of increasing LMI with greater MVPA support efforts targeting enhanced PA participation to promote independent mobility.
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Affiliation(s)
- Leticia Janzen
- Sport Injury Prevention Research Center, Faculty of Kinesiology, University of Calgary, Calgary, AB,Canada
- Vi Riddell Pediatric Rehabilitation Research Program, Alberta Children's Hospital Research Institute, Calgary, AB,Canada
| | - Clodagh M Toomey
- Sport Injury Prevention Research Center, Faculty of Kinesiology, University of Calgary, Calgary, AB,Canada
- School of Allied Health, Faculty of Education and Health Sciences, University of Limerick, Limerick,Ireland
| | - Laura K Brunton
- School of Physical Therapy, Western University, London, ON,Canada
| | - Elizabeth G Condliffe
- Vi Riddell Pediatric Rehabilitation Research Program, Alberta Children's Hospital Research Institute, Calgary, AB,Canada
- Departments of Clinical Neurosciences and Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB,Canada
| | - Shane Esau
- Sport Injury Prevention Research Center, Faculty of Kinesiology, University of Calgary, Calgary, AB,Canada
- Vi Riddell Pediatric Rehabilitation Research Program, Alberta Children's Hospital Research Institute, Calgary, AB,Canada
| | - Adam Kirton
- Vi Riddell Pediatric Rehabilitation Research Program, Alberta Children's Hospital Research Institute, Calgary, AB,Canada
- Departments of Clinical Neurosciences and Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB,Canada
| | - Carolyn A Emery
- Sport Injury Prevention Research Center, Faculty of Kinesiology, University of Calgary, Calgary, AB,Canada
- Vi Riddell Pediatric Rehabilitation Research Program, Alberta Children's Hospital Research Institute, Calgary, AB,Canada
- Pediatrics and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, AB,Canada
| | - Gregor Kuntze
- Sport Injury Prevention Research Center, Faculty of Kinesiology, University of Calgary, Calgary, AB,Canada
- Vi Riddell Pediatric Rehabilitation Research Program, Alberta Children's Hospital Research Institute, Calgary, AB,Canada
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9
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Kirton A. A Moral Imperative to Advance Brain-Computer Interfaces for Children With Neurological Disability. JAMA Pediatr 2023; 177:751-752. [PMID: 37338891 DOI: 10.1001/jamapediatrics.2023.1744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
This Viewpoint describes the need to expand use of brain-computer interface systems to children with neurological disabilities.
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Affiliation(s)
- Adam Kirton
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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10
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Shinde K, Craig BT, Hassett J, Dlamini N, Brooks BL, Kirton A, Carlson HL. Alterations in cortical morphometry of the contralesional hemisphere in children, adolescents, and young adults with perinatal stroke. Sci Rep 2023; 13:11391. [PMID: 37452141 PMCID: PMC10349116 DOI: 10.1038/s41598-023-38185-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 07/04/2023] [Indexed: 07/18/2023] Open
Abstract
Perinatal stroke causes most hemiparetic cerebral palsy and cognitive dysfunction may co-occur. Compensatory developmental changes in the intact contralesional hemisphere may mediate residual function and represent targets for neuromodulation. We used morphometry to explore cortical thickness, grey matter volume, gyrification, and sulcal depth of the contralesional hemisphere in children, adolescents, and young adults after perinatal stroke and explored associations with motor, attention, and executive function. Participants aged 6-20 years (N = 109, 63% male) with unilateral perinatal stroke underwent T1-weighted imaging. Participants had arterial ischemic stroke (AIS; n = 36), periventricular venous infarction (PVI; n = 37) or were controls (n = 36). Morphometry was performed using the Computational Anatomy Toolbox (CAT12). Group differences and associations with motor and executive function (in a smaller subsample) were assessed. Group comparisons revealed areas of lower cortical thickness in contralesional hemispheres in both AIS and PVI and greater gyrification in AIS compared to controls. Areas of greater grey matter volume and sulcal depth were also seen for AIS. The PVI group showed lower grey matter volume in cingulate cortex and less volume in precuneus relative to controls. No associations were found between morphometry metrics, motor, attention, and executive function. Cortical structure of the intact contralesional hemisphere is altered after perinatal stroke. Alterations in contralesional cortical morphometry shown in perinatal stroke may be associated with different mechanisms of damage or timing of early injury. Further investigations with larger samples are required to more thoroughly explore associations with motor and cognitive function.
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Affiliation(s)
- Karan Shinde
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada
| | - Brandon T Craig
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Jordan Hassett
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada
| | - Nomazulu Dlamini
- Children's Stroke Program, Hospital for Sick Children, Toronto, ON, Canada
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Brian L Brooks
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada
- Neurosciences Program, Alberta Children's Hospital, Calgary, AB, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- Department of Psychology, University of Calgary, Calgary, AB, Canada
| | - Adam Kirton
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- Department of Radiology, University of Calgary, Calgary, AB, Canada
| | - Helen L Carlson
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, Canada.
- Alberta Children's Hospital Research Institute, Calgary, AB, Canada.
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
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11
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Domi T, Robertson A, Lee W, Wintle RF, Stence N, Bernard T, Kirton A, Carlson H, Andrade A, Rafay MF, Bjornson B, Kim D, Dowling M, Bonnett W, Rivkin M, Krishnan P, Shroff M, Ertl-Wagner B, Strother S, Arnott S, Wintermark M, Kassner A, deVeber G, Dlamini N. The development of the pediatric stroke neuroimaging platform (PEDSNIP). Neuroimage Clin 2023; 39:103438. [PMID: 37354865 PMCID: PMC10331307 DOI: 10.1016/j.nicl.2023.103438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 05/15/2023] [Indexed: 06/26/2023]
Abstract
Childhood stroke occurs from birth to 18 years of age, ranks among the top ten childhood causes of death, and leaves lifelong neurological impairments. Arterial ischemic stroke in infancy and childhood occurs due to arterial occlusion in the brain, resulting in a focal lesion. Our understanding of mechanisms of injury and repair associated with focal injury in the developing brain remains rudimentary. Neuroimaging can reveal important insights into these mechanisms. In adult stroke population, multi-center neuroimaging studies are common and have accelerated the translation process leading to improvements in treatment and outcome. These studies are centered on the growing evidence that neuroimaging measures and other biomarkers (e.g., from blood and cerebrospinal fluid) can enhance our understanding of mechanisms of risk and injury and be used as complementary outcome markers. These factors have yet to be studied in pediatric stroke because most neuroimaging studies in this population have been conducted in single-centred, small cohorts. By pooling neuroimaging data across multiple sites, larger cohorts of patients can significantly boost study feasibility and power in elucidating mechanisms of brain injury, repair and outcomes. These aims are particularly relevant in pediatric stroke because of the decreased incidence rates and the lack of mechanism-targeted trials. Toward these aims, we developed the Pediatric Stroke Neuroimaging Platform (PEDSNIP) in 2015, funded by The Brain Canada Platform Support Grant, to focus on three identified neuroimaging priorities. These were: developing and harmonizing multisite clinical protocols, creating the infrastructure and methods to import, store and organize the large clinical neuroimaging dataset from multiple sites through the International Pediatric Stroke Study (IPSS), and enabling central searchability. To do this, developed a two-pronged approach that included building 1) A Clinical-MRI Data Repository (standard of care imaging) linked to clinical data and longitudinal outcomes and 2) A Research-MRI neuroimaging data set acquired through our extensive collaborative, multi-center, multidisciplinary network. This dataset was collected prospectively in eight North American centers to test the feasibility and implementation of harmonized advanced Research-MRI, with the addition of clinical information, genetic and proteomic studies, in a cohort of children presenting with acute ischemic stroke. Here we describe the process that enabled the development of PEDSNIP built to provide the infrastructure to support neuroimaging research priorities in pediatric stroke. Having built this Platform, we are now able to utilize the largest neuroimaging and clinical data pool on pediatric stroke data worldwide to conduct hypothesis-driven research. We are actively working on a bioinformatics approach to develop predictive models of risk, injury and repair and accelerate breakthrough discoveries leading to mechanism-targeted treatments that improve outcomes and minimize the burden following childhood stroke. This unique transformational resource for scientists and researchers has the potential to result in a paradigm shift in the management, outcomes and quality of life in children with stroke and their families, with far-reaching benefits for other brain conditions of people across the lifespan.
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Affiliation(s)
- Trish Domi
- Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Amanda Robertson
- Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Wayne Lee
- Research Operations, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Richard F Wintle
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Nicholas Stence
- Pediatric Neuroradiology, Children's Hospital Colorado, Aurora, CO, United States; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Timothy Bernard
- Child Neurology and Hemophilia and Thrombosis Center, University of Colorado, Aurora, CO, United States; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Adam Kirton
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Helen Carlson
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Andrea Andrade
- London Health Sciences Centre, London, United Kingdom; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Mubeen F Rafay
- Health Sciences Centre Winnipeg, Winnipeg, Manitoba, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Bruce Bjornson
- The University of British Columbia, Vancouver, British Columbia, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Danny Kim
- BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Michael Dowling
- The University of Texas, Southwestern Austin, TX, United States; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Wilmot Bonnett
- The University of Texas, Southwestern Austin, TX, United States; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Michael Rivkin
- Department of Neurology, Boston, MA, United States; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Pradeep Krishnan
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Manohar Shroff
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Birgit Ertl-Wagner
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Stephen Strother
- Department of Medical Biophysics Rotman Research Institute, Baycrest Hospital, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Steven Arnott
- Department of Medical Biophysics Rotman Research Institute, Baycrest Hospital, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Max Wintermark
- Department of Neuroradiology, MD Anderson, Houston, TX (M.W.), United States; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Andrea Kassner
- Translational Medicine, The Hospital for Sick Children, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Gabrielle deVeber
- Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Nomazulu Dlamini
- Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Ontario, Canada; Division of Neurology, The Hospital for Sick Children, Toronto, Ontario, Canada,.
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12
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Kirton A, Kinney-Lang E, Norton J, Chau T. Editorial: BCIs: research and development in children. Front Hum Neurosci 2023; 17:1201623. [PMID: 37261079 PMCID: PMC10227564 DOI: 10.3389/fnhum.2023.1201623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 04/27/2023] [Indexed: 06/02/2023] Open
Affiliation(s)
- Adam Kirton
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
| | - Eli Kinney-Lang
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
| | - James Norton
- National Center for Adaptive Neurotechnologies, Albany, NY, United States
| | - Tom Chau
- Department of Biomedical Engineering, University of Toronto, Toronto, ON, Canada
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13
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Bikson M, Ganho-Ávila A, Datta A, Gillick B, Joensson MG, Kim S, Kim J, Kirton A, Lee K, Marjenin T, Onarheim B, Rehn EM, Sack AT, Unal G. Limited output transcranial electrical stimulation 2023 (LOTES-2023): Updates on engineering principles, regulatory statutes, and industry standards for wellness, over-the-counter, or prescription devices with low risk. Brain Stimul 2023; 16:840-853. [PMID: 37201865 PMCID: PMC10350287 DOI: 10.1016/j.brs.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 05/09/2023] [Accepted: 05/13/2023] [Indexed: 05/20/2023] Open
Abstract
The objective and scope of this Limited Output Transcranial Electrical Stimulation 2023 (LOTES-2023) guidance is to update the previous LOTES-2017 guidance. These documents should therefore be considered together. The LOTES provides a clearly articulated and transparent framework for the design of devices providing limited output (specified low-intensity range) transcranial electrical stimulation for a variety of intended uses. These guidelines can inform trial design and regulatory decisions, but most directly inform manufacturer activities - and hence were presented in LOTES-2017 as "Voluntary industry standard for compliance controlled limited output tES devices". In LOTES-2023 we emphasize that these standards are largely aligned across international standards and national regulations (including those in USA, EU, and South Korea), and so might be better understood as "Industry standards for compliance controlled limited output tES devices". LOTES-2023 is therefore updated to reflect a consensus among emerging international standards, as well as best available scientific evidence. "Warnings" and "Precautions" are updated to align with current biomedical evidence and applications. LOTES standards applied to a constrained device dose range, but within this dose range and for different use-cases, manufacturers are responsible to conduct device-specific risk management.
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Affiliation(s)
- Marom Bikson
- Department of Biomedical Engineering, The City College of New York, New York, NY, United States.
| | - Ana Ganho-Ávila
- Center for Research in Neuropsychology and Cognitive Behavioral Intervention-CINEICC, Faculty of Psychology and Educational Sciences, University of Coimbra, Coimbra, Portugal
| | - Abhishek Datta
- Research and Development, Soterix Medical Inc., Woodbridge, NJ, United States
| | - Bernadette Gillick
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | | | - Sungjin Kim
- Ybrain Research Institute, Seongnam-si, Gyeonggi-do, South Korea
| | - Jinuk Kim
- Ybrain Research Institute, Seongnam-si, Gyeonggi-do, South Korea
| | - Adam Kirton
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Kiwon Lee
- Ybrain Research Institute, Seongnam-si, Gyeonggi-do, South Korea
| | | | - Balder Onarheim
- Research and Development, PlatoScience ApS, Copenhagen, Denmark
| | - Erik M Rehn
- Research and Development, Flow Neuroscience, Malmo, Skane Lan, Sweden
| | - Alexander T Sack
- Department of Cognitive Neuroscience, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, the Netherlands
| | - Gozde Unal
- Department of Biomedical Engineering, The City College of New York, New York, NY, United States.
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14
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Jadavji Z, Kirton A, Metzler MJ, Zewdie E. BCI-activated electrical stimulation in children with perinatal stroke and hemiparesis: A pilot study. Front Hum Neurosci 2023; 17:1006242. [PMID: 37007682 PMCID: PMC10063823 DOI: 10.3389/fnhum.2023.1006242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 03/03/2023] [Indexed: 03/19/2023] Open
Abstract
BackgroundPerinatal stroke (PS) causes most hemiparetic cerebral palsy (CP) and results in lifelong disability. Children with severe hemiparesis have limited rehabilitation options. Brain computer interface- activated functional electrical stimulation (BCI-FES) of target muscles may enhance upper extremity function in hemiparetic adults. We conducted a pilot clinical trial to assess the safety and feasibility of BCI-FES in children with hemiparetic CP.MethodsThirteen participants (mean age = 12.2 years, 31% female) were recruited from a population-based cohort. Inclusion criteria were: (1) MRI-confirmed PS, (2) disabling hemiparetic CP, (3) age 6–18 years, (4) informed consent/assent. Those with neurological comorbidities or unstable epilepsy were excluded. Participants attended two BCI sessions: training and rehabilitation. They wore an EEG-BCI headset and two forearm extensor stimulation electrodes. Participants’ imagination of wrist extension was classified on EEG, after which muscle stimulation and visual feedback were provided when the correct visualization was detected.ResultsNo serious adverse events or dropouts occurred. The most common complaints were mild headache, headset discomfort and muscle fatigue. Children ranked the experience as comparable to a long car ride and none reported as unpleasant. Sessions lasted a mean of 87 min with 33 min of stimulation delivered. Mean classification accuracies were (M = 78.78%, SD = 9.97) for training and (M = 73.48, SD = 12.41) for rehabilitation. Mean Cohen’s Kappa across rehabilitation trials was M = 0.43, SD = 0.29, range = 0.019–1.00, suggesting BCI competency.ConclusionBrain computer interface-FES was well -tolerated and feasible in children with hemiparesis. This paves the way for clinical trials to optimize approaches and test efficacy.
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Affiliation(s)
- Zeanna Jadavji
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital Research Institute, Calgary, AB, Canada
| | - Adam Kirton
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital Research Institute, Calgary, AB, Canada
- Department of Pediatrics, Alberta Children’s Hospital, Calgary, AB, Canada
| | - Megan J. Metzler
- Department of Clinical Neurosciences, Alberta Children’s Hospital, Calgary, AB, Canada
| | - Ephrem Zewdie
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Pediatrics, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital Research Institute, Calgary, AB, Canada
- *Correspondence: Ephrem Zewdie,
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15
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Craig BT, Geeraert B, Kinney-Lang E, Hilderley AJ, Yeates KO, Kirton A, Noel M, MacMaster FP, Bray S, Barlow KM, Brooks BL, Lebel C, Carlson HL. Structural brain network lateralization across childhood and adolescence. Hum Brain Mapp 2023; 44:1711-1724. [PMID: 36478489 PMCID: PMC9921220 DOI: 10.1002/hbm.26169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 11/16/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
Developmental lateralization of brain function is imperative for behavioral specialization, yet few studies have investigated differences between hemispheres in structural connectivity patterns, especially over the course of development. The present study compares the lateralization of structural connectivity patterns, or topology, across children, adolescents, and young adults. We applied a graph theory approach to quantify key topological metrics in each hemisphere including efficiency of information transfer between regions (global efficiency), clustering of connections between regions (clustering coefficient [CC]), presence of hub-nodes (betweenness centrality [BC]), and connectivity between nodes of high and low complexity (hierarchical complexity [HC]) and investigated changes in these metrics during development. Further, we investigated BC and CC in seven functionally defined networks. Our cross-sectional study consisted of 211 participants between the ages of 6 and 21 years with 93% being right-handed and 51% female. Global efficiency, HC, and CC demonstrated a leftward lateralization, compared to a rightward lateralization of BC. The sensorimotor, default mode, salience, and language networks showed a leftward asymmetry of CC. BC was only lateralized in the salience (right lateralized) and dorsal attention (left lateralized) networks. Only a small number of metrics were associated with age, suggesting that topological organization may stay relatively constant throughout school-age development, despite known underlying changes in white matter properties. Unlike many other imaging biomarkers of brain development, our study suggests topological lateralization is consistent across age, highlighting potential nonlinear mechanisms underlying developmental specialization.
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Affiliation(s)
- Brandon T Craig
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Bryce Geeraert
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada
| | - Eli Kinney-Lang
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada
| | - Alicia J Hilderley
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada
| | - Keith O Yeates
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Psychology, University of Calgary, Calgary, Alberta, Canada
| | - Adam Kirton
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada.,Department of Radiology, University of Calgary, Calgary, Alberta, Canada
| | - Melanie Noel
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Psychology, University of Calgary, Calgary, Alberta, Canada
| | - Frank P MacMaster
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada.,Child and Adolescent Imaging Research (CAIR) Program, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Strategic Clinical Network for Addictions and Mental Health, Alberta Health Services, Calgary, Alberta, Canada
| | - Signe Bray
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Radiology, University of Calgary, Calgary, Alberta, Canada.,Child and Adolescent Imaging Research (CAIR) Program, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Karen M Barlow
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Child and Adolescent Imaging Research (CAIR) Program, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Child Health Research Centre, The University of Queensland, Brisbane, Queensland, Australia
| | - Brian L Brooks
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada.,Department of Psychology, University of Calgary, Calgary, Alberta, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Catherine Lebel
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Radiology, University of Calgary, Calgary, Alberta, Canada.,Child and Adolescent Imaging Research (CAIR) Program, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Helen L Carlson
- University of Calgary, Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,University of Calgary, Hotchkiss Brain Institute, Calgary, Alberta, Canada.,Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
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16
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Carlson HL, Giuffre A, Ciechanski P, Kirton A. Electric field simulations of transcranial direct current stimulation in children with perinatal stroke. Front Hum Neurosci 2023; 17:1075741. [PMID: 36816507 PMCID: PMC9932338 DOI: 10.3389/fnhum.2023.1075741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction Perinatal stroke (PS) is a focal vascular brain injury and the leading cause of hemiparetic cerebral palsy. Motor impairments last a lifetime but treatments are limited. Transcranial direct-current stimulation (tDCS) may enhance motor learning in adults but tDCS effects on motor learning are less studied in children. Imaging-based simulations of tDCS-induced electric fields (EF) suggest differences in the developing brain compared to adults but have not been applied to common pediatric disease states. We created estimates of tDCS-induced EF strength using five tDCS montages targeting the motor system in children with PS [arterial ischemic stroke (AIS) or periventricular infarction (PVI)] and typically developing controls (TDC) aged 6-19 years to explore associates between simulation values and underlying anatomy. Methods Simulations were performed using SimNIBS https://simnibs.github.io/simnibs/build/html/index.html using T1, T2, and diffusion-weighted images. After tissue segmentation and tetrahedral mesh generation, tDCS-induced EF was estimated based on the finite element model (FEM). Five 1mA tDCS montages targeting motor function in the paretic (non-dominant) hand were simulated. Estimates of peak EF strength, EF angle, field focality, and mean EF in motor cortex (M1) were extracted for each montage and compared between groups. Results Simulations for eighty-three children were successfully completed (21 AIS, 30 PVI, 32 TDC). Conventional tDCS montages utilizing anodes over lesioned cortex had higher peak EF strength values for the AIS group compared to TDC. These montages showed lower mean EF strength within target M1 regions suggesting that peaks were not necessarily localized to motor network-related targets. EF angle was lower for TDC compared to PS groups for a subset of montages. Montages using anodes over lesioned cortex were more sensitive to variations in underlying anatomy (lesion and tissue volumes) than those using cathodes over non-lesioned cortex. Discussion Individualized patient-centered tDCS EF simulations are prudent for clinical trial planning and may provide insight into the efficacy of tDCS interventions in children with PS.
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Affiliation(s)
- Helen L. Carlson
- Calgary Pediatric Stroke Program, Alberta Children’s Hospital, Calgary, AB, Canada,Alberta Children’s Hospital Research Institute (ACHRI), Calgary, AB, Canada,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada,Department of Pediatrics, University of Calgary, Calgary, AB, Canada,*Correspondence: Helen L. Carlson,
| | - Adrianna Giuffre
- Calgary Pediatric Stroke Program, Alberta Children’s Hospital, Calgary, AB, Canada,Alberta Children’s Hospital Research Institute (ACHRI), Calgary, AB, Canada,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada,Department of Pediatrics, University of Calgary, Calgary, AB, Canada
| | - Patrick Ciechanski
- Calgary Pediatric Stroke Program, Alberta Children’s Hospital, Calgary, AB, Canada,Alberta Children’s Hospital Research Institute (ACHRI), Calgary, AB, Canada,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada,Department of Pediatrics, University of Calgary, Calgary, AB, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Alberta Children’s Hospital, Calgary, AB, Canada,Alberta Children’s Hospital Research Institute (ACHRI), Calgary, AB, Canada,Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada,Department of Pediatrics, University of Calgary, Calgary, AB, Canada,Department of Clinical Neuroscience and Radiology, University of Calgary, Calgary, AB, Canada
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17
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Rouabhi A, Husein N, Dewey D, Letourneau N, Daboval T, Oskoui M, Kirton A, Shevell M, Dunbar MJ. Development of a Bedside Tool to Predict the Diagnosis of Cerebral Palsy in Term-Born Neonates. JAMA Pediatr 2023; 177:177-186. [PMID: 36648921 PMCID: PMC9857831 DOI: 10.1001/jamapediatrics.2022.5177] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 08/24/2022] [Indexed: 01/18/2023]
Abstract
Importance Cerebral palsy (CP) is the most common abnormality of motor development and causes lifelong impairment. Early diagnosis and therapy can improve outcomes, but early identification of infants at risk remains challenging. Objective To develop a CP prognostic tool that can be applied to all term neonates to identify those at increased risk of developing CP. Design, Setting, and Participants This case-control study used data from the Canadian Cerebral Palsy Registry (data collected from January 2003 to December 2019) for children with CP and the Alberta Pregnancy Outcomes and Nutrition study (mothers enrolled from May 2009 to September 2012; data extracted in 2020) for controls. There were 2771 children with CP and 2131 controls evaluated; 941 and 144, respectively, were removed for gestational age less than 37 weeks at birth, 565 with CP removed for incomplete data, and 2 controls removed for a diagnosis of CP. Data were analyzed from April to August 2022. Exposures Potential risk factors were selected a priori based on the literature, including maternal, intrapartum, and infant characteristics. Main Outcomes and Measures Diagnosis of CP, defined as a disorder of motor function due to a nonprogressive brain abnormality before age 1 year and classified by Gross Motor Function Classification System levels I to V. Results Of 3250 included individuals, 1752 (53.9%) were male, and the median (IQR) gestational age at birth was 39 (38-40) weeks. Encephalopathy was present in 335 of 1184 infants with CP (28%) and 0 controls. The final prediction model included 12 variables and correctly classified 75% of infants, with a sensitivity of 56% (95% CI, 52-60) and specificity of 82% (95% CI, 81-84). The C statistic was 0.74 (95% CI, 71-76). Risk factors were found to be additive. A proposed threshold for screening is probability greater than 0.3, with a sensitivity of 65% (95% CI, 61-68) and specificity of 71% (95% CI, 69-73). The prognostic tool identified 2.4-fold more children with CP than would have presented with encephalopathy (odds ratio, 13.8; 95% CI, 8.87-22.65; P < .001). Conclusions and Relevance In this case-control study, a prognostic model using 12 clinical variables improved the prediction of CP compared with clinical presentation with encephalopathy. This tool can be applied to all term newborns to help select infants for closer surveillance or further diagnostic tests, which could improve outcomes through early intervention.
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Affiliation(s)
- Amira Rouabhi
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Nafisa Husein
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada
| | - Deborah Dewey
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Nicole Letourneau
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- Faculty of Nursing, Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Thierry Daboval
- Department of Pediatrics, Children’s Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada
| | - Maryam Oskoui
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Adam Kirton
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Michael Shevell
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Mary J. Dunbar
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
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18
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Kahl CK, Giuffre A, Wrightson JG, Zewdie E, Condliffe EG, MacMaster FP, Kirton A. Reliability of active robotic neuro-navigated transcranial magnetic stimulation motor maps. Exp Brain Res 2023; 241:355-364. [PMID: 36525072 DOI: 10.1007/s00221-022-06523-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/04/2022] [Indexed: 12/23/2022]
Abstract
Transcranial magnetic stimulation (TMS) motor mapping is a safe, non-invasive method used to study corticomotor organization and intervention-induced plasticity. Reliability of resting maps is well established, but understudied for active maps and unestablished for active maps obtained using robotic TMS techniques. The objective of this study was to determine the reliability of robotic neuro-navigated TMS motor map measures during active muscle contraction. We hypothesized that map area and volume would show excellent short- and medium-term reliability. Twenty healthy adults were tested on 3 days. Active maps of the first dorsal interosseous muscle were created using a 12 × 12 grid (7 mm spacing). Short- (24 h) and medium-term (3-5 weeks) relative (intra-class correlation coefficient) and absolute (minimal detectable change (MDC); standard error of measure) reliabilities were evaluated for map area, volume, center of gravity (CoG), and hotspot magnitude (peak-to-peak MEP amplitude at the hotspot), along with active motor threshold (AMT) and maximum voluntary contraction (MVC). This study found that AMT and MVC had good-to-excellent short- and medium-term reliability. Map CoG (x and y) were the most reliable map measures across sessions with excellent short- and medium-term reliability (p < 0.001). Map area, hotspot magnitude, and map volume followed with better reliability medium-term than short-term, with a change of 28%, 62%, and 78% needed to detect a true medium-term change, respectively. Therefore, robot-guided neuro-navigated TMS active mapping is relatively reliable but varies across measures. This, and MDC, should be considered in interventional study designs.
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Affiliation(s)
- Cynthia K Kahl
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Calgary, AB, Canada
| | - Adrianna Giuffre
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Calgary, AB, Canada
| | - James G Wrightson
- Hotchkiss Brain Institute, Calgary, AB, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Ephrem Zewdie
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Pediatrics, University of Calgary, Calgary, AB, Canada
| | - Elizabeth G Condliffe
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Calgary, AB, Canada.,Department of Pediatrics, University of Calgary, Calgary, AB, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Frank P MacMaster
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Calgary, AB, Canada.,Department of Pediatrics, University of Calgary, Calgary, AB, Canada.,Department of Psychiatry, University of Calgary, Calgary, AB, Canada.,Addictions and Mental Health Strategic Clinical Network, Calgary, AB, Canada
| | - Adam Kirton
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. .,Hotchkiss Brain Institute, Calgary, AB, Canada. .,Department of Pediatrics, University of Calgary, Calgary, AB, Canada. .,Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada. .,Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, T3B 6A8, Canada.
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19
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Low TA, Lindland K, Kirton A, Carlson HL, Harris AD, Goodyear BG, Monchi O, Hill MD, Dukelow SP. Repetitive transcranial magnetic stimulation (rTMS) combined with multi-modality aphasia therapy for chronic post-stroke non-fluent aphasia: A pilot randomized sham-controlled trial. Brain Lang 2023; 236:105216. [PMID: 36525719 DOI: 10.1016/j.bandl.2022.105216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 10/22/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
Repetitive transcranial magnetic stimulation (rTMS) shows promise in improving speech production in post-stroke aphasia. Limited evidence suggests pairing rTMS with speech therapy may result in greater improvements. Twenty stroke survivors (>6 months post-stroke) were randomized to receive either sham rTMS plus multi-modality aphasia therapy (M-MAT) or rTMS plus M-MAT. For the first time, we demonstrate that rTMS combined with M-MAT is feasible, with zero adverse events and minimal attrition. Both groups improved significantly over time on all speech and language outcomes. However, improvements did not differ between rTMS or sham. We found that rTMS and sham groups differed in lesion location, which may explain speech and language outcomes as well as unique patterns of BOLD signal change within each group. We offer practical considerations for future studies and conclude that while combination therapy of rTMS plus M-MAT in chronic post-stroke aphasia is safe and feasible, personalized intervention may be necessary.
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Affiliation(s)
- Trevor A Low
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kevin Lindland
- Department of Allied Health, Alberta Health Services, Calgary, Alberta, Canada
| | - Adam Kirton
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Pediatrics, Cummings School of Medicine, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Helen L Carlson
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Pediatrics, Cummings School of Medicine, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Ashley D Harris
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada; Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Bradley G Goodyear
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Oury Monchi
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Michael D Hill
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Sean P Dukelow
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada; Division of Physical Medicine and Rehabilitation, University of Calgary, Calgary, Alberta, Canada.
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20
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Huroy M, Behlim T, Andersen J, Buckley D, Fehlings D, Kirton A, Pigeon N, Mishaal RA, Wood E, Shevell M, Oskoui M. Stability of the Gross Motor Function Classification System over time in children with cerebral palsy. Dev Med Child Neurol 2022; 64:1487-1493. [PMID: 35941090 DOI: 10.1111/dmcn.15375] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 07/06/2022] [Accepted: 07/13/2022] [Indexed: 01/31/2023]
Abstract
AIM To assess the stability of the Gross Motor Functional Classification System (GMFCS) in children with cerebral palsy (CP) from time of preliminary diagnosis (~2 years of age) to time of diagnosis (~5 years of age), and to examine factors associated with reclassification. METHOD We conducted a longitudinal study using a sample from the Canadian CP Registry. Stability was analysed by using the percentage of agreement between timepoints and a weighted prevalence and bias adjusted kappa statistic. Univariate and multivariate logistic regressions were performed to identify variables associated with reclassification. RESULTS The study included 1670 children (857 males, 713 females) with a mean age of 11 years 4 months (SD 4 years, range 3 years 5 months-20 years 1 month) at time of data extraction (3rd September 2019), of which 1435 (85.9%) maintained a stable GMFCS, with a weighted kappa of 0.91 (95% confidence interval 0.89-0.92). Univariate logistic regression showed that initial GMFCS level, CP subtype, and the presence of cognitive impairment were associated with the likelihood of change in the GMFCS level (p < 0.1). In the multivariate analysis, however, the likelihood was associated with initial GMFCS level only (odds ratio 7.10-8.88, p < 0.00). INTERPRETATION The GMFCS has good stability in early childhood. For the majority of children, it is predictive of their long-term motor function. WHAT THIS PAPER ADDS The Gross Motor Function Classification System (GMFCS) rating in early childhood is stable over time. There is no directionality in the reclassification of the GMFCS. The initial GMFCS level was related to the likelihood of change in follow-up GMFCS level.
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Affiliation(s)
- Menal Huroy
- Faculty of Medicine, McGill University, QC, Canada
| | - Tarannum Behlim
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, QC, Canada
| | - John Andersen
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | | | - Darcy Fehlings
- Department of Paediatrics, University of Toronto, Bloorview Research Institute, Toronto, ON, Canada
| | - Adam Kirton
- Departments of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, AB, Canada
| | - Nicole Pigeon
- Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
| | - Ram A Mishaal
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | | | - Michael Shevell
- Department of Pediatrics and Neurology and Neurosurgery, McGill University, QC, Canada
| | - Maryam Oskoui
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, QC, Canada.,Department of Pediatrics and Neurology and Neurosurgery, McGill University, QC, Canada
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21
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Brunoni AR, Ekhtiari H, Antal A, Auvichayapat P, Baeken C, Benseñor IM, Bikson M, Boggio P, Borroni B, Brighina F, Brunelin J, Carvalho S, Caumo W, Ciechanski P, Charvet L, Clark VP, Cohen Kadosh R, Cotelli M, Datta A, Deng ZD, De Raedt R, De Ridder D, Fitzgerald PB, Floel A, Frohlich F, George MS, Ghobadi-Azbari P, Goerigk S, Hamilton RH, Jaberzadeh SJ, Hoy K, Kidgell DJ, Zonoozi AK, Kirton A, Laureys S, Lavidor M, Lee K, Leite J, Lisanby SH, Loo C, Martin DM, Miniussi C, Mondino M, Monte-Silva K, Morales-Quezada L, Nitsche MA, Okano AH, Oliveira CS, Onarheim B, Pacheco-Barrios K, Padberg F, Nakamura-Palacios EM, Palm U, Paulus W, Plewnia C, Priori A, Rajji TK, Razza LB, Rehn EM, Ruffini G, Schellhorn K, Zare-Bidoky M, Simis M, Skorupinski P, Suen P, Thibaut A, Valiengo LCL, Vanderhasselt MA, Vanneste S, Venkatasubramanian G, Violante IR, Wexler A, Woods AJ, Fregni F. Digitalized transcranial electrical stimulation: A consensus statement. Clin Neurophysiol 2022; 143:154-165. [PMID: 36115809 PMCID: PMC10031774 DOI: 10.1016/j.clinph.2022.08.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 08/16/2022] [Accepted: 08/20/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Although relatively costly and non-scalable, non-invasive neuromodulation interventions are treatment alternatives for neuropsychiatric disorders. The recent developments of highly-deployable transcranial electric stimulation (tES) systems, combined with mobile-Health technologies, could be incorporated in digital trials to overcome methodological barriers and increase equity of access. The study aims are to discuss the implementation of tES digital trials by performing a systematic scoping review and strategic process mapping, evaluate methodological aspects of tES digital trial designs, and provide Delphi-based recommendations for implementing digital trials using tES. METHODS We convened 61 highly-productive specialists and contacted 8 tES companies to assess 71 issues related to tES digitalization readiness, and processes, barriers, advantages, and opportunities for implementing tES digital trials. Delphi-based recommendations (>60% agreement) were provided. RESULTS The main strengths/opportunities of tES were: (i) non-pharmacological nature (92% of agreement), safety of these techniques (80%), affordability (88%), and potential scalability (78%). As for weaknesses/threats, we listed insufficient supervision (76%) and unclear regulatory status (69%). Many issues related to methodological biases did not reach consensus. Device appraisal showed moderate digitalization readiness, with high safety and potential for trial implementation, but low connectivity. CONCLUSIONS Panelists recognized the potential of tES for scalability, generalizability, and leverage of digital trials processes; with no consensus about aspects regarding methodological biases. SIGNIFICANCE We further propose and discuss a conceptual framework for exploiting shared aspects between mobile-Health tES technologies with digital trials methodology to drive future efforts for digitizing tES trials.
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Affiliation(s)
- Andre R Brunoni
- Department and Institute of Psychiatry, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil; Department of Internal Medicine, Faculdade de Medicina da Universidade de São Paulo & Hospital Universitário, Universidade de São Paulo, São Paulo, Brazil; Laboratory of Neurosciences (LIM-27), Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Service of Interdisciplinary Neuromodulation (SIN), Department and Institute of Psychiatry, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
| | - Hamed Ekhtiari
- Laureate Institute for Brain Research (LIBR), Tulsa, OK, USA
| | - Andrea Antal
- Department of Neurology, University Medical Center Göttingen, Göttingen, Germany
| | - Paradee Auvichayapat
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Chris Baeken
- Vrije Universiteit Brussel (VUB): Department of Psychiatry University Hospital (UZBrussel), Brussels, Belgium; Department of Head and Skin, Ghent University Hospital, Ghent University, Ghent, Belgium; Ghent Experimental Psychiatry (GHEP) Lab, Ghent, Belgium; Eindhoven University of Technology, Department of Electrical Engineering, the Netherlands
| | - Isabela M Benseñor
- Center for Clinical and Epidemiological Research, University of São Paulo, São Paulo, Brazil
| | - Marom Bikson
- The Department of Biomedical Engineering, The City College of New York, The City University of New York, NY, USA
| | - Paulo Boggio
- Social and Cognitive Neuroscience Laboratory, Center for Biological Science and Health, Mackenzie Presbyterian University, São Paulo, Brazil
| | - Barbara Borroni
- Centre for Neurodegenerative Disorders, Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy
| | - Filippo Brighina
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy
| | - Jerome Brunelin
- Centre Hospitalier le Vinatier, Bron, France; INSERM U1028, CNRS UMR 5292, PSYR2 Team, Centre de recherche en Neurosciences de Lyon (CRNL), Université Lyon 1, Lyon, France
| | - Sandra Carvalho
- Translational Neuropsychology Lab, Department of Education and Psychology and William James Center for Research (WJCR), University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Wolnei Caumo
- Post-Graduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil; Laboratory of Pain and Neuromodulation at Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil; Pain and Palliative Care Service at HCPA, Brazil; Department of Surgery, School of Medicine, UFRGS, Brazil
| | - Patrick Ciechanski
- Faculty of Medicine and Dentistry, University of Alberta, 1-002 Katz Group Centre for Pharmacy and Health Research, Edmonton, Alberta, Canada
| | - Leigh Charvet
- Department of Neurology, NYU Grossman School of Medicine, New York, NY, USA
| | - Vincent P Clark
- Psychology Clinical Neuroscience Center, Department of Psychology, The University of New Mexico, Albuquerque, NM, USA
| | - Roi Cohen Kadosh
- School of Psychology, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Maria Cotelli
- Neuropsychology Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Abhishek Datta
- Research and Development, Soterix Medical Inc., New York, USA
| | - Zhi-De Deng
- Noninvasive Neuromodulation Unit, Experimental Therapeutics & Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA
| | - Rudi De Raedt
- Department of Experimental Clinical and Health Psychology, Ghent University, Belgium
| | - Dirk De Ridder
- Section of Neurosurgery, Department of Surgical Sciences, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Paul B Fitzgerald
- Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash University Department of Psychiatry, Camberwell, Victoria, Australia
| | - Agnes Floel
- Department of Neurology, University Medicine Greifswald, Greifswald, Germany; German Center for Neurodegenerative Diseases (DZNE), Rostock/Greifswald, Germany
| | - Flavio Frohlich
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA; Carolina Center for Neurostimulation, University of North Carolina, Chapel Hill, NC, USA; Neuroscience Center, University of North Carolina, Chapel Hill, NC, USA; Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, USA; Department of Biomedical Engineering, University of North Carolina, Chapel Hill, NC, USA; Department of Neurology, University of North Carolina, Chapel Hill, NC, USA
| | - Mark S George
- Department of Psychiatry, Medical University of South Carolina, Charleston, SC, USA; Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Peyman Ghobadi-Azbari
- Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran; Department of Biomedical Engineering, Shahed University, Tehran, Iran
| | - Stephan Goerigk
- Department of Psychiatry and Psychotherapy, LMU Hospital, Munich, Germany; Department of Psychological Methodology and Assessment, LMU, Munich, Germany; Hochschule Fresenius, University of Applied Sciences, Munich, Germany
| | - Roy H Hamilton
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - Shapour J Jaberzadeh
- Department of Physiotherapy, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | - Kate Hoy
- Epworth Centre for Innovation in Mental Health, Epworth Healthcare and Monash University Department of Psychiatry, Camberwell, Victoria, Australia
| | - Dawson J Kidgell
- Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne, Australia
| | - Arash Khojasteh Zonoozi
- Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran; Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Adam Kirton
- Department of Clinical Neurosciences and Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Steven Laureys
- Coma Science Group, GIGA-Consciousness, GIGA Institute, University of Liège, Liege, Belgium
| | - Michal Lavidor
- Bar Ilan University, Department of Psychology, and the Gonda Brain Research Center, Israel
| | - Kiwon Lee
- Ybrain Corporation, Gyeonggi-do, Republic of Korea
| | - Jorge Leite
- INPP, Portucalense University, Porto, Portugal
| | - Sarah H Lisanby
- Noninvasive Neuromodulation Unit, Experimental Therapeutics & Pathophysiology Branch, National Institute of Mental Health, Bethesda, MD, USA
| | - Colleen Loo
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Black Dog Institute, Sydney, NSW, Australia
| | - Donel M Martin
- School of Psychiatry, University of New South Wales, Sydney, NSW, Australia; Black Dog Institute, Sydney, NSW, Australia
| | - Carlo Miniussi
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Rovereto, Italy
| | - Marine Mondino
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, Palermo, Italy; Centre Hospitalier le Vinatier, Bron, France
| | - Katia Monte-Silva
- Applied Neuroscience Laboratory, Department of Physical Therapy, Universidade Federal de Pernambuco, UFPE, Recife, PE, Brazil; NAPeN Network (Núcleo de Assistência e Pesquisa em Neuromodulação), Brazil
| | - Leon Morales-Quezada
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - Michael A Nitsche
- Department of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany; Department of Neurology, University Medical Hospital Bergmannsheil, Bochum, Germany
| | - Alexandre H Okano
- NAPeN Network (Núcleo de Assistência e Pesquisa em Neuromodulação), Brazil; Center for Mathematics, Computation, and Cognition, Universidade Federal do ABC, São Bernardo do Campo, Brazil; Brazilian Institute of Neuroscience and Neurotechnology (BRAINN/CEPID-FAPESP), University of Campinas, Campinas, São Paulo, Brazil
| | - Claudia S Oliveira
- Master's and Doctoral Program in Health Sciences, Faculty of Medical Sciences, Santa Casa de São Paulo, São Paulo, Brazil; Master's and Doctoral Program in Human Movement and Rehabilitation, Evangelical University of Goiás, Anápolis, Brazil
| | | | - Kevin Pacheco-Barrios
- Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Universidad San Ignacio de Loyola, Vicerrectorado de Investigación, Unidad de Investigación para la Generación y Síntesis de Evidencias en Salud, Lima, Peru
| | - Frank Padberg
- Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, Munich, Germany
| | - Ester M Nakamura-Palacios
- Laboratory of Cognitive Sciences and Neuropsychopharmacology, Program of Post-Graduation in Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitória, ES, Brazil
| | - Ulrich Palm
- Department of Psychiatry and Psychotherapy, Klinikum der Universität München, Munich, Germany; Medical Park Chiemseeblick, Rasthausstr. 25, 83233 Bernau-Felden, Germany
| | - Walter Paulus
- Department of Neurology. Ludwig Maximilians University Munich, Klinikum Großhadern, Marchioninistr, München, Germany
| | - Christian Plewnia
- Department of Psychiatry and Psychotherapy, Tübingen Center for Mental Health (TüCMH), Neurophysiology and Interventional Neuropsychiatry, University of Tübingen, Tübingen, Germany
| | - Alberto Priori
- Aldo Ravelli Research Center for Neurotechnology and Experimental Neurotherapeutics, Department of Health Sciences, University of Milan, Milan, Italy
| | - Tarek K Rajji
- Centre for Addiction and Mental Health, Toronto, Canada; Temerty Faculty of Medicine, University of Toronto, Toronto, Canada; Toronto Dementia Research Alliance, Toronto, Canada
| | - Lais B Razza
- Service of Interdisciplinary Neuromodulation (SIN), Department and Institute of Psychiatry, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Mehran Zare-Bidoky
- Iranian National Center for Addiction Studies, Tehran University of Medical Sciences, Tehran, Iran; School of Medicine, Shahid-Sadoughi University of Medical Sciences, Yazd, Iran
| | - Marcel Simis
- Physical and Rehabilitation Medicine Institute, General Hospital, Medical School of the University of Sao Paulo, São Paulo, Brazil
| | | | - Paulo Suen
- Service of Interdisciplinary Neuromodulation (SIN), Department and Institute of Psychiatry, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Aurore Thibaut
- Coma Science Group, GIGA-Consciousness & Centre du Cerveau, University and University Hospital of Liège, Liège, Belgium
| | - Leandro C L Valiengo
- Laboratory of Neurosciences (LIM-27), Instituto Nacional de Biomarcadores em Neuropsiquiatria (INBioN), Service of Interdisciplinary Neuromodulation (SIN), Department and Institute of Psychiatry, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Marie-Anne Vanderhasselt
- Department of Head and Skin, Ghent University Hospital, Ghent University, Ghent, Belgium; Ghent Experimental Psychiatry (GHEP) Lab, Ghent, Belgium
| | - Sven Vanneste
- Lab for Clinical & Integrative Neuroscience, Trinity College of Neuroscience, Trinity College Dublin, Ireland
| | - Ganesan Venkatasubramanian
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences (NIMHANS), Bengaluru, India
| | - Ines R Violante
- School of Psychology, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Anna Wexler
- Department of Medical Ethics and Health Policy, University of Pennsylvania, Philadelphia, PA, USA
| | - Adam J Woods
- Center for Cognitive Aging and Memory, McKnight Brain Institute, University of Florida, Gainesville, FL, USA; Department of Clinical and Health Psychology, University of Florida, Gainesville, FL, USA; Department of Neuroscience, University of Florida, Gainesville, FL, USA
| | - Felipe Fregni
- Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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22
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Floreani ED, Rowley D, Kelly D, Kinney-Lang E, Kirton A. On the feasibility of simple brain-computer interface systems for enabling children with severe physical disabilities to explore independent movement. Front Hum Neurosci 2022; 16:1007199. [PMID: 36337857 PMCID: PMC9633669 DOI: 10.3389/fnhum.2022.1007199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 10/03/2022] [Indexed: 12/04/2022] Open
Abstract
Introduction Children with severe physical disabilities are denied their fundamental right to move, restricting their development, independence, and participation in life. Brain-computer interfaces (BCIs) could enable children with complex physical needs to access power mobility (PM) devices, which could help them move safely and independently. BCIs have been studied for PM control for adults but remain unexamined in children. In this study, we explored the feasibility of BCI-enabled PM control for children with severe physical disabilities, assessing BCI performance, standard PM skills and tolerability of BCI. Materials and methods Patient-oriented pilot trial. Eight children with quadriplegic cerebral palsy attended two sessions where they used a simple, commercial-grade BCI system to activate a PM trainer device. Performance was assessed through controlled activation trials (holding the PM device still or activating it upon verbal and visual cueing), and basic PM skills (driving time, number of activations, stopping) were assessed through distance trials. Setup and calibration times, headset tolerability, workload, and patient/caregiver experience were also evaluated. Results All participants completed the study with favorable tolerability and no serious adverse events or technological challenges. Average control accuracy was 78.3 ± 12.1%, participants were more reliably able to activate (95.7 ± 11.3%) the device than hold still (62.1 ± 23.7%). Positive trends were observed between performance and prior BCI experience and age. Participants were able to drive the PM device continuously an average of 1.5 meters for 3.0 s. They were able to stop at a target 53.1 ± 23.3% of the time, with significant variability. Participants tolerated the headset well, experienced mild-to-moderate workload and setup/calibration times were found to be practical. Participants were proud of their performance and both participants and families were eager to participate in future power mobility sessions. Discussion BCI-enabled PM access appears feasible in disabled children based on evaluations of performance, tolerability, workload, and setup/calibration. Performance was comparable to existing pediatric BCI literature and surpasses established cut-off thresholds (70%) of “effective” BCI use. Participants exhibited PM skills that would categorize them as “emerging operational learners.” Continued exploration of BCI-enabled PM for children with severe physical disabilities is justified.
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Affiliation(s)
- Erica D. Floreani
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- *Correspondence: Erica D. Floreani,
| | - Danette Rowley
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children’s Hospital, Alberta Health Services, Calgary, AB, Canada
| | - Dion Kelly
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Eli Kinney-Lang
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Adam Kirton
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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23
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Raess L, Hawe RL, Metzler M, Zewdie E, Condliffe E, Dukelow SP, Kirton A. Robotic Rehabilitation and Transcranial Direct Current Stimulation in Children With Bilateral Cerebral Palsy. Front Rehabil Sci 2022; 3:843767. [PMID: 36188922 PMCID: PMC9397997 DOI: 10.3389/fresc.2022.843767] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 01/28/2022] [Indexed: 11/26/2022]
Abstract
Aim To identify challenges of combining robotic upper extremity rehabilitation with tDCS in children with upper extremity bilateral cerebral palsy (CP) by assessing feasibility, tolerability and safety. Methods This was an unblinded, open-label, pilot clinical trial. Participants completed 10 × 1 h sessions of robotic rehabilitation combined with motor cortex anodal tDCS. Feasibility, acceptability and practicality, were assessed including the number of participants completing the protocol, factors limiting participation, time required for sessions, and completion of functional assessments and tolerability scales. To assess safety, standardized clinical and robotic measures of sensorimotor function were performed. The trial was registered at clinicaltrials.gov (NCT04233710). Results Eight children were recruited (mean age 8y ± 1.8y, range 6–11 years) and 5 completed the intervention. There were no serious adverse events. One child developed focal seizures 6 weeks after the trial that were deemed to be unrelated. Barriers to completion included time and scheduling demands and patient factors, specifically cognitive/behavioral impairments and dyskinesia. No decline in clinical function was appreciated. Conclusions Robotic upper extremity rehabilitation combined with tDCS may be feasible in children with bilateral CP. Careful participant selection, family engagement, and protocol adaptations are recommended to better understand the feasibility and tolerability of future trials.
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Affiliation(s)
- Liliane Raess
- University Children's Hospital Zurich, Zurich, Switzerland.,Clinical Neurosciences, Alberta Children's Hospital, Calgary, AB, Canada
| | - Rachel L Hawe
- Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Megan Metzler
- Clinical Neurosciences, Alberta Children's Hospital, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Calgary, AB, Canada
| | - Ephrem Zewdie
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Elizabeth Condliffe
- Clinical Neurosciences, Alberta Children's Hospital, Calgary, AB, Canada.,Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Sean P Dukelow
- Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada
| | - Adam Kirton
- Clinical Neurosciences, Alberta Children's Hospital, Calgary, AB, Canada.,Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Calgary, AB, Canada.,Calgary Pediatric Stroke Program, University of Calgary, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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24
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Marefi A, Husein N, Dunbar M, Dewey D, Letourneau N, Oskoui M, Kirton A, Shevell MI. Risk Factors for Term-Born Periventricular White Matter Injury in Children With Cerebral Palsy: A Case-Control Study. Neurology 2022; 99:e2485-e2493. [PMID: 36041870 DOI: 10.1212/wnl.0000000000201274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 08/05/2022] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The aim of this study was to identify possible risk factors associated with term born children with cerebral palsy (CP) and periventricular white matter injury (PVWMI) on imaging. METHODS This is a case-controlled study restricted to term born children with CP with the cases extracted from the Canadian Cerebral Palsy Registry (CCPR) and controls from Alberta Pregnancy Outcomes and Nutrition (APrON) Study. A diagnosis of PVWMI was made based on expert categorization of MRI reports. Risk factor variables were selected a priori; these included pregnancy complications, antenatal toxin exposure, perinatal infection, sex, small for gestational age, and perinatal adversity (i.e. neonatal encephalopathy presumably on the basis of intrapartum hypoxia-ischemia). We used multivariable analyses to calculate odds ratios (ORs) and their 95% confidence intervals (CIs). RESULTS A total of 160 cases (7.06% of the registry sample) were compared to 1950 controls. Of the term born PVWMI participants, 59.4% were males and 13.5 % were born to mothers of extreme maternal age. Multivariable analysis of each risk factor controlled for weight showed PVWMI is associated with pregnancy complications (OR=3.35; 95% CI=2.23-4.94), antenatal toxin exposure (OR=2.45; 95% CI=1.67-3.55), perinatal infection (OR=3.61; 95% CI=1.96-6.29) and perinatal adversity (OR=2.03; 95% CI=1.42-2.94). Term born males were not more likely to have PVWMI compared to females (OR=1.37; 95% CI=0.98-1.93). Multiple regression analyses suggested independent associations between PVWMI and pregnancy complications (OR=3.75; 95% CI 2.46-5.62), antenatal toxin exposure (OR=2.80; 95% CI 1.88-4.12), perinatal infection (OR=4.62; 95% CI 2.46-8.42) and perinatal adversity (OR=2.49; 95% CI= 1.71-3.69). CONCLUSIONS Risk factors such as pregnancy complications, antenatal toxin exposure, perinatal infection as well as perinatal adversity are associated with PVWMI in term born children, suggesting perhaps variable interactions between antenatal and perinatal factors to yield this under-recognized CP phenotype.
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Affiliation(s)
- Amaar Marefi
- Department of Neurology & Neurosurgery, McGill University, Montréal, QC, Canada Department of Pediatrics, Montreal Children's Hospital-McGill University Health Center, Montreal, Quebec, Canada
| | - Nafisa Husein
- Department of Neurology & Neurosurgery, McGill University, Montréal, QC, Canada Department of Pediatrics, Montreal Children's Hospital-McGill University Health Center, Montreal, Quebec, Canada
| | - Mary Dunbar
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Deborah Dewey
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada.,Departments of Pediatrics and Community Health Sciences, University of Calgary, Calgary, Alberta
| | - Nicole Letourneau
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada.,Departments of Pediatrics and Community Health Sciences, University of Calgary, Calgary, Alberta.,Faculty of Nursing and Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
| | - Maryam Oskoui
- Department of Neurology & Neurosurgery, McGill University, Montréal, QC, Canada Department of Pediatrics, Montreal Children's Hospital-McGill University Health Center, Montreal, Quebec, Canada.,Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Center, Montréal, QC, Canada
| | - Adam Kirton
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Michael I Shevell
- Department of Neurology & Neurosurgery, McGill University, Montréal, QC, Canada Department of Pediatrics, Montreal Children's Hospital-McGill University Health Center, Montreal, Quebec, Canada
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Hurd CL, Barnes M, Diot CM, Condliffe EG, Alazem H, Pritchard L, Zwicker JD, McCormick A, Watt MJ, Andersen J, Kirton A, Yang JF. Parent-therapist partnership to ELEVATE gross motor function in children with perinatal stroke: protocol for a mixed methods randomized controlled trial. BMC Pediatr 2022; 22:480. [PMID: 35948896 PMCID: PMC9364526 DOI: 10.1186/s12887-022-03525-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/28/2022] [Indexed: 11/10/2022] Open
Abstract
Background There is increasing evidence for early, active rehabilitation to enhance motor function following early brain injury. This is clear for interventions targeting the upper extremity, whereas passive treatment approaches for the lower extremity persist. The purpose of this trial is to evaluate the effectiveness of early, intensive rehabilitation targeting the lower extremity and delivered in a parent-therapist partnership model for children with perinatal stroke. Methods We describe a protocol for a waitlist-control, single-blind, mixed methods effectiveness randomized controlled trial, with an embedded qualitative study using interpretative description. Participants are children with perinatal stroke aged eight months to three years with signs of hemiparesis. Participants will be randomly allocated to an immediate ELEVATE (Engaging the Lower Extremity Via Active Therapy Early) intervention group, or a waitlist-control group, who will receive usual care for six months. The ELEVATE intervention involves one hour of training four days per week for 12 weeks, with a pediatric therapist and a parent or guardian each delivering two sessions per week. The intervention targets the affected lower extremity by progressively challenging the child while standing and walking. The primary outcome measure is the Gross Motor Function Measure-66. Secondary outcomes include the Pediatric Quality of Life Inventory™, Young Children's Participation and Environment Measure, and an instrumented measure of spasticity. A cost-effectiveness analysis and qualitative component will explore benefit to costs ratios and parents’ perspectives of early, intensive rehabilitation, and their role as a partner in the rehabilitation, respectively. Discussion This study has the potential to change current rehabilitation for young children with perinatal stroke if the ELEVATE intervention is effective. The parent interviews will provide further insight into benefits and challenges of a partnership model of rehabilitation. The mixed methods design will enable optimization for transfer of this collaborative approach into physical therapy practice. Trial registration ClinicalTrials.gov NCT03672864. Registered 17 September 2018. Supplementary Information The online version contains supplementary material available at 10.1186/s12887-022-03525-6.
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Affiliation(s)
- Caitlin L Hurd
- Department of Physical Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-50 Corbett Hall, Edmonton, AB, T6G 2G4, Canada
| | - Michelle Barnes
- Department of Physical Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-50 Corbett Hall, Edmonton, AB, T6G 2G4, Canada
| | | | - Elizabeth G Condliffe
- Departments of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Hana Alazem
- Department of Pediatrics, University of Ottawa, and Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Lesley Pritchard
- Department of Physical Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-50 Corbett Hall, Edmonton, AB, T6G 2G4, Canada
| | - Jennifer D Zwicker
- School of Public Policy and Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Anna McCormick
- Department of Pediatrics, University of Ottawa, and Children's Hospital of Eastern Ontario, Ottawa, ON, Canada
| | - Man-Joe Watt
- Department of Pediatrics, University of Alberta, and Glenrose Rehabilitation Hospital, Edmonton, AB, Canada
| | - John Andersen
- Department of Pediatrics, University of Alberta, and Glenrose Rehabilitation Hospital, Edmonton, AB, Canada
| | - Adam Kirton
- Department of Pediatrics and Department of Clinical Neurosciences, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| | - Jaynie F Yang
- Department of Physical Therapy, Faculty of Rehabilitation Medicine, University of Alberta, 2-50 Corbett Hall, Edmonton, AB, T6G 2G4, Canada.
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Kahl CK, Swansburg R, Hai T, Wrightson JG, Bell T, Lemay JF, Kirton A, MacMaster FP. Differences in neurometabolites and transcranial magnetic stimulation motor maps in children with attention-deficit/hyperactivity disorder. J Psychiatry Neurosci 2022; 47:E239-E249. [PMID: 35793906 PMCID: PMC9262400 DOI: 10.1503/jpn.210186] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Although much is known about cognitive dysfunction in attention-deficit/hyperactivity disorder (ADHD), few studies have examined the pathophysiology of disordered motor circuitry. We explored differences in neurometabolite levels and transcranial magnetic stimulation (TMS)-derived corticomotor representations among children with ADHD and typically developing children. METHODS We used magnetic resonance spectroscopy (MRS) protocols to measure excitatory (glutamate + glutamine [Glx]) and inhibitory (γ-aminobutyric acid [GABA]) neurometabolite levels in the dominant primary motor cortex (M1) and the supplementary motor area (SMA) in children with ADHD and typically developing children. We used robotic neuronavigated TMS to measure corticospinal excitability and create corticomotor maps. RESULTS We collected data from 26 medication-free children with ADHD (aged 7-16 years) and 25 typically developing children (11-16 years). Children with ADHD had lower M1 Glx (p = 0.044, d = 0.6); their mean resting motor threshold was lower (p = 0.029, d = 0.8); their map area was smaller (p = 0.044, d = 0.7); and their hotspot density was higher (p = 0.008, d = 0.9). M1 GABA levels were associated with motor map area (p = 0.036).Limitations: Some TMS data were lost because the threshold of some children exceeded 100% of the machine output. The relatively large MRS voxel required to obtain sufficient signal-to-noise ratio and reliably measure GABA levels encompassed tissue beyond the M1, making this measure less anatomically specific. CONCLUSION The neurochemistry and neurophysiology of key nodes in the motor network may be altered in children with ADHD, and the differences appear to be related to each other. These findings suggest potentially novel neuropharmacological and neuromodulatory targets for ADHD.
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Affiliation(s)
- Cynthia K Kahl
- From the Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, MacMaster); the Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, Lemay, Kirton, MacMaster); the Hotchkiss Brain Institute, University of Calgary, Calgary, Alta. (Kahl, Wrightson, Bell, Kirton, MacMaster); the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alta. (Kahl, Bell, Kirton, MacMaster); the Department of Educational Psychology, University of Alberta, Edmonton, Alta. (Hai); the Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Bell); the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kirton); and the Strategic Clinical Network for Addictions and Mental Health, Calgary, Alta. (MacMaster)
| | - Rose Swansburg
- From the Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, MacMaster); the Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, Lemay, Kirton, MacMaster); the Hotchkiss Brain Institute, University of Calgary, Calgary, Alta. (Kahl, Wrightson, Bell, Kirton, MacMaster); the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alta. (Kahl, Bell, Kirton, MacMaster); the Department of Educational Psychology, University of Alberta, Edmonton, Alta. (Hai); the Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Bell); the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kirton); and the Strategic Clinical Network for Addictions and Mental Health, Calgary, Alta. (MacMaster)
| | - Tasmia Hai
- From the Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, MacMaster); the Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, Lemay, Kirton, MacMaster); the Hotchkiss Brain Institute, University of Calgary, Calgary, Alta. (Kahl, Wrightson, Bell, Kirton, MacMaster); the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alta. (Kahl, Bell, Kirton, MacMaster); the Department of Educational Psychology, University of Alberta, Edmonton, Alta. (Hai); the Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Bell); the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kirton); and the Strategic Clinical Network for Addictions and Mental Health, Calgary, Alta. (MacMaster)
| | - James G Wrightson
- From the Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, MacMaster); the Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, Lemay, Kirton, MacMaster); the Hotchkiss Brain Institute, University of Calgary, Calgary, Alta. (Kahl, Wrightson, Bell, Kirton, MacMaster); the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alta. (Kahl, Bell, Kirton, MacMaster); the Department of Educational Psychology, University of Alberta, Edmonton, Alta. (Hai); the Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Bell); the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kirton); and the Strategic Clinical Network for Addictions and Mental Health, Calgary, Alta. (MacMaster)
| | - Tiffany Bell
- From the Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, MacMaster); the Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, Lemay, Kirton, MacMaster); the Hotchkiss Brain Institute, University of Calgary, Calgary, Alta. (Kahl, Wrightson, Bell, Kirton, MacMaster); the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alta. (Kahl, Bell, Kirton, MacMaster); the Department of Educational Psychology, University of Alberta, Edmonton, Alta. (Hai); the Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Bell); the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kirton); and the Strategic Clinical Network for Addictions and Mental Health, Calgary, Alta. (MacMaster)
| | - Jean-François Lemay
- From the Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, MacMaster); the Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, Lemay, Kirton, MacMaster); the Hotchkiss Brain Institute, University of Calgary, Calgary, Alta. (Kahl, Wrightson, Bell, Kirton, MacMaster); the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alta. (Kahl, Bell, Kirton, MacMaster); the Department of Educational Psychology, University of Alberta, Edmonton, Alta. (Hai); the Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Bell); the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kirton); and the Strategic Clinical Network for Addictions and Mental Health, Calgary, Alta. (MacMaster)
| | - Adam Kirton
- From the Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, MacMaster); the Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, Lemay, Kirton, MacMaster); the Hotchkiss Brain Institute, University of Calgary, Calgary, Alta. (Kahl, Wrightson, Bell, Kirton, MacMaster); the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alta. (Kahl, Bell, Kirton, MacMaster); the Department of Educational Psychology, University of Alberta, Edmonton, Alta. (Hai); the Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Bell); the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kirton); and the Strategic Clinical Network for Addictions and Mental Health, Calgary, Alta. (MacMaster)
| | - Frank P MacMaster
- From the Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, MacMaster); the Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kahl, Swansburg, Lemay, Kirton, MacMaster); the Hotchkiss Brain Institute, University of Calgary, Calgary, Alta. (Kahl, Wrightson, Bell, Kirton, MacMaster); the Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alta. (Kahl, Bell, Kirton, MacMaster); the Department of Educational Psychology, University of Alberta, Edmonton, Alta. (Hai); the Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Bell); the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alta. (Kirton); and the Strategic Clinical Network for Addictions and Mental Health, Calgary, Alta. (MacMaster)
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Floreani ED, Kelly D, Rowley D, Irvine B, Kinney-Lang E, Kirton A. Iterative Development of a Software to Facilitate Independent Home Use of BCI Technologies for Children with Quadriplegic Cerebral Palsy. Annu Int Conf IEEE Eng Med Biol Soc 2022; 2022:3361-3364. [PMID: 36086125 DOI: 10.1109/embc48229.2022.9871105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Brain-computer interfaces (BCIs) are emerging as a new solution for children with severe disabilities to interact with the world. However, BCI technologies have yet to reach end-users in their daily lives due to significant translational gaps. To address these gaps, we applied user-centered design principles to establish a home BCI program for children with quadriplegic cerebral palsy. This work describes the technical development of the software we designed to facilitate BCI use at home. Children and their families were involved at each design stage to evaluate and provide feedback. Since deployment, seven families have successfully used the system independently at home and continue to use BCI at home to further enable participation and independence for their children. Clinical relevance- The design and successful implementation of user-centered software for home use will both inform on the feasibility of BCI as a long-term access solution for children with neurological disabilities as well as decrease barriers of accessibility and availability of BCI technologies for end-users.
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Jadavji Z, Zewdie E, Kelly D, Kinney-Lang E, Robu I, Kirton A. Establishing a Clinical Brain-Computer Interface Program for Children With Severe Neurological Disabilities. Cureus 2022; 14:e26215. [PMID: 35891842 PMCID: PMC9307353 DOI: 10.7759/cureus.26215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2022] [Indexed: 12/19/2022] Open
Abstract
Background: Children with severe motor impairment but intact cognition are deprived of fundamental human rights. Quadriplegic cerebral palsy is the most common scenario where rehabilitation options remain limited. Brain-computer interfaces (BCI) represent a potential solution, but pediatric populations have been neglected. Direct engagement of children and families could provide meaningful opportunities while informing program development. We describe a patient-centered, clinical, non-invasive pediatric BCI program. Methods: Eligible children were identified within a population-based, tertiary care children’s hospital. Criteria included 1) age six to 18 years, 2) severe physical disability (non-ambulatory, minimal hand use), 3) severely limited speech, and 4) evidence of grade 1 cognitive capacity. After initial screening for BCI competency, participants attended regular sessions, attempting commercially available and customized systems to play computer games, control devices, and attempt communication. Results: We report the first 10 participants (median 11 years, range 6-16, 60% male). Over 334 hours of participation, there were no serious adverse events. BCI training was well tolerated, with favorable feedback from children and parents. All but one participant demonstrated the ability to perform BCI tasks. The majority performed well, using motor imagery based tasks for games and entertainment. Difficulties were most significant using P300, visual evoked potential based paradigms where maintenance of attention was challenging. Children and families expressed interest in continuing and informing program development. Conclusions: Patient-centered clinical BCI programs are feasible for children with severe disabilities. Carefully selected participants can often learn quickly to perform meaningful tasks on readily available systems. Patient and family motivation and engagement appear high.
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Srivastava R, Dunbar M, Shevell M, Oskoui M, Basu A, Rivkin MJ, Shany E, de Vries LS, Dewey D, Letourneau N, Hill MD, Kirton A. Development and Validation of a Prediction Model for Perinatal Arterial Ischemic Stroke in Term Neonates. JAMA Netw Open 2022; 5:e2219203. [PMID: 35767262 PMCID: PMC9244611 DOI: 10.1001/jamanetworkopen.2022.19203] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
IMPORTANCE Perinatal arterial ischemic stroke (PAIS) is a focal brain injury in term neonates that is identified postnatally but is presumed to occur near the time of birth. Many pregnancy, delivery, and fetal factors have been associated with PAIS, but early risk detection is lacking; thus, targeted treatment and prevention efforts are currently limited. OBJECTIVE To develop and validate a diagnostic risk prediction model that uses common clinical factors to predict the probability of PAIS in a term neonate. DESIGN, SETTING, AND PARTICIPANTS In this diagnostic study, a prediction model was developed using multivariable logistic regression with registry-based case data collected between January 2003, and March 2020, from the Alberta Perinatal Stroke Project, Canadian Cerebral Palsy Registry, International Pediatric Stroke Study, and Alberta Pregnancy Outcomes and Nutrition study. Criteria for inclusion were term birth and no underlying medical conditions associated with stroke diagnosis. Records with more than 20% missing data were excluded. Variable selection was based on peer-reviewed literature. Data were analyzed in September 2021. EXPOSURES Clinical pregnancy, delivery, and neonatal factors associated with PAIS as common data elements across the 4 registries. MAIN OUTCOMES AND MEASURES The primary outcome was the discriminative accuracy of the model predicting PAIS, measured by the concordance statistic (C statistic). RESULTS Of 2571 term neonates in the initial analysis (527 [20%] case and 2044 [80%] control individuals; gestational age range, 37-42 weeks), 1389 (54%) were male, with a greater proportion of males among cases compared with controls (318 [60%] vs 1071 [52%]). The final model was developed using 1924 neonates, including 321 cases (17%) and 1603 controls (83%), and 9 clinical factors associated with risk of PAIS in term neonates: maternal age, tobacco exposure, recreational drug exposure, preeclampsia, chorioamnionitis, intrapartum maternal fever, emergency cesarean delivery, low 5-minute Apgar score, and male sex. The model demonstrated good discrimination between cases and controls (C statistic, 0.73; 95% CI, 0.69-0.76) and good model fit (Hosmer-Lemeshow P = .20). Internal validation techniques yielded similar C statistics (0.73 [95% CI, 0.69-0.77] with bootstrap resampling, 10-fold cross-validated area under the curve, 0.72 [bootstrap bias-corrected 95% CI, 0.69-0.76]), as did a sensitivity analysis using cases and controls from Alberta, Canada, only (C statistic, 0.71; 95% CI, 0.65-0.77). CONCLUSIONS AND RELEVANCE The findings suggest that clinical variables can be used to develop and internally validate a model to predict the risk of PAIS in term neonates, with good predictive performance and strong internal validity. Identifying neonates with a high probability of PAIS who could then be screened for early diagnosis and treatment may be associated with reductions in lifelong morbidity for affected individuals and their families.
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Affiliation(s)
- Ratika Srivastava
- Department of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Mary Dunbar
- Department of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Michael Shevell
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada
- Department of Neurology/Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Maryam Oskoui
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada
- Department of Neurology/Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Anna Basu
- Newcastle upon Tyne Hospitals, National Health Service Foundation Trust, Newcastle upon Tyne, United Kingdom
| | - Michael John Rivkin
- Department of Neurology, Boston Children’s Hospital, Boston, Massachusetts
- Department of Neurology, Harvard Medical School, Boston, Massachusetts
| | - Eilon Shany
- Department of Neonatology, Soroka University Medical Center, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Linda S. de Vries
- Department of Neonatology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Deborah Dewey
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
- Owerko Centre at the Alberta Children’s Hospital Research Institute, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Nicole Letourneau
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Michael D. Hill
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Radiology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adam Kirton
- Department of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- Alberta Children’s Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
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Kahl CK, Giuffre A, Wrightson JG, Kirton A, Condliffe EG, MacMaster FP, Zewdie E. Active versus resting neuro-navigated robotic transcranial magnetic stimulation motor mapping. Physiol Rep 2022; 10:e15346. [PMID: 35748041 PMCID: PMC9226845 DOI: 10.14814/phy2.15346] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 03/30/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023] Open
Abstract
Transcranial magnetic stimulation (TMS) motor mapping is a safe, non-invasive method that can be used to study corticomotor organization. Motor maps are typically acquired at rest, and comparisons to maps obtained during muscle activation have been both limited and contradictory. Understanding the relationship between functional activation of the corticomotor system as recorded by motor mapping is crucial for their use clinically and in research. The present study utilized robotic TMS paired with personalized neuro-navigation to examine the relationship between resting and active motor map measures and their relationship with motor performance. Twenty healthy right-handed participants underwent resting and active robotic TMS motor mapping of the first dorsal interosseous to 10% maximum voluntary contraction. Motor map parameters including map area, volume, and measures of map centrality were compared between techniques using paired sample tests of difference and Bland-Altman plots and analysis. Map area, volume, and hotspot magnitude were larger in the active motor maps, while map center of gravity and hotspot locations remained consistent between both maps. No associations were observed between motor maps and motor performance as measured by the Purdue Pegboard Test. Our findings support previous suggestions that maps scale with muscle contraction. Differences in mapping outcomes suggest rest and active motor maps may reflect functionally different corticomotor representations. Advanced analysis methods may better characterize the underlying neurophysiology of both types of motor mapping.
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Affiliation(s)
- Cynthia K Kahl
- Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adrianna Giuffre
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - James G Wrightson
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adam Kirton
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Elizabeth G Condliffe
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Frank P MacMaster
- Department of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Strategic Clinical Network for Neuroscience, Vision, and Rehabilitation, Calgary, Alberta, Canada
- Strategic Clinical Network for Addictions and Mental Health, Calgary, Alberta, Canada
| | - Ephrem Zewdie
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Kirton A, Jordan LC, Orbach DB, Fullerton HJ. The case against endovascular thrombectomy in neonates with arterial ischemic stroke. Clin Neuroradiol 2022; 32:581-582. [PMID: 35648152 DOI: 10.1007/s00062-022-01153-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/01/2021] [Indexed: 11/26/2022]
Affiliation(s)
- Adam Kirton
- Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Lori C Jordan
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Darren B Orbach
- Department of Radiology, Boston Children's Hospital, Boston, MA, USA
| | - Heather J Fullerton
- Departments of Neurology and Pediatrics, University of California, San Francisco, San Francisco, CA, USA.
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Kuo HC, Litzenberger J, Nettel-Aguirre A, Zewdie E, Kirton A. Exploring Clinical and Neurophysiological Factors Associated with Response to Constraint Therapy and Brain Stimulation in Children with Hemiparetic Cerebral Palsy. Dev Neurorehabil 2022; 25:229-238. [PMID: 34392795 DOI: 10.1080/17518423.2021.1964103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Perinatal stroke causes hemiparetic cerebral palsy (HCP) and lifelong disability. Constraint-induced movement therapy (CIMT) and neurostimulation may enhance motor function, but the individual factors associated with responsiveness are undetermined. OBJECTIVE We explored the clinical and neurophysiological factors associated with responsiveness to CIMT and/or brain stimulation within a clinical trial. METHODS PLASTIC CHAMPS was a randomized, blinded, sham-controlled trial (n = 45) of CIMT and neurostimulation paired with intensive, goal-directed therapy. Primary outcome was the Assisting Hand Assessment (AHA). Classification trees created through recursive partitioning suggested clinical and neurophysiological profiles associated with improvement at 6-months. RESULTS Both clinical (stroke side (left) and age >14 years) and neurophysiological (intracortical inhibition/facilitation and motor threshold) were associated with responsiveness across treatment groups with positive predictive values (PPV) approaching 80%. CONCLUSION This preliminary analysis suggested sets of variables that may be associated with response to intensive therapies in HCP. Further modeling in larger trials is required.
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Affiliation(s)
- Hsing-Ching Kuo
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Alberta Children's Hospital Research Institute, Calgary, Canada.,Department of Pediatrics and Clinical Neurosciences, Hotchkiss Brain Institute, Calgary, Canada
| | | | - Alberto Nettel-Aguirre
- Alberta Children's Hospital Research Institute, Calgary, Canada.,Departments of Pediatrics and Community Health Sciences, Primary Institution is the University of Calgary, Calgary, Canada.,O'Brien Institute for Public Health, University of Calgary, Calgary, Canada
| | - Ephrem Zewdie
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Alberta Children's Hospital Research Institute, Calgary, Canada.,Department of Pediatrics and Clinical Neurosciences, Hotchkiss Brain Institute, Calgary, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Alberta Children's Hospital Research Institute, Calgary, Canada.,Department of Pediatrics and Clinical Neurosciences, Hotchkiss Brain Institute, Calgary, Canada
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33
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Kuo HC, Zewdie E, Giuffre A, Gan LS, Carlson HL, Wrightson J, Kirton A. Robotic mapping of motor cortex in children with perinatal stroke and hemiparesis. Hum Brain Mapp 2022; 43:3745-3758. [PMID: 35451540 PMCID: PMC9294290 DOI: 10.1002/hbm.25881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/15/2022] [Accepted: 04/05/2022] [Indexed: 11/13/2022] Open
Abstract
Brain stimulation combined with intensive therapy may improve hand function in children with perinatal stroke‐induced unilateral cerebral palsy (UCP). However, response to therapy varies and underlying neuroplasticity mechanisms remain unclear. Here, we aimed to characterize robotic motor mapping outcomes in children with UCP. Twenty‐nine children with perinatal stroke and UCP (median age 11 ± 2 years) were compared to 24 typically developing controls (TDC). Robotic, neuronavigated transcranial magnetic stimulation was employed to define bilateral motor maps including area, volume, and peak motor evoked potential (MEP). Map outcomes were compared to the primary clinical outcome of the Jebsen–Taylor Test of Hand Function (JTT). Maps were reliably obtained in the contralesional motor cortex (24/29) but challenging in the lesioned hemisphere (5/29). Within the contralesional M1 of participants with UCP, area and peak MEP amplitude of the unaffected map were larger than the affected map. When comparing bilateral maps within the contralesional M1 in children with UCP to that of TDC, only peak MEP amplitudes were different, being smaller for the affected hand as compared to TDC. We observed correlations between the unaffected map when stimulating the contralesional M1 and function of the unaffected hand. Robotic motor mapping can characterize motor cortex neurophysiology in children with perinatal stroke. Map area and peak MEP amplitude may represent discrete biomarkers of developmental plasticity in the contralesional M1. Correlations between map metrics and hand function suggest clinical relevance and utility in studies of interventional plasticity.
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Affiliation(s)
- Hsing-Ching Kuo
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Physical Medicine & Rehabilitation, University of California Davis, Sacramento, California, USA
| | - Ephrem Zewdie
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adrianna Giuffre
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Liu Shi Gan
- Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada
| | - Helen L Carlson
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - James Wrightson
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute (ACHRI), Calgary, Alberta, Canada.,Hotchkiss Brain Institute (HBI), Calgary, Alberta, Canada.,Department of Pediatrics and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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Hurd C, Livingstone D, Brunton K, Smith A, Gorassini M, Watt MJ, Andersen J, Kirton A, Yang JF. Early, Intensive, Lower Extremity Rehabilitation Shows Preliminary Efficacy After Perinatal Stroke: Results of a Pilot Randomized Controlled Trial. Neurorehabil Neural Repair 2022; 36:360-370. [PMID: 35427191 PMCID: PMC9127938 DOI: 10.1177/15459683221090931] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Perinatal stroke injures motor regions of the brain, compromising movement for life. Early, intensive, active interventions for the upper extremity are efficacious, but interventions for the lower extremity remain understudied. Objective To determine the feasibility and potential efficacy of ELEVATE—Engaging the Lower Extremity Via Active Therapy Early—on gross motor function. Methods We conducted a single-blind, two-arm, randomized controlled trial (RCT), with the Immediate Group receiving the intervention while the Delay Group served as a 3-month waitlist control. A separate cohort living beyond commuting distance was trained by their parents with guidance from physical therapists. Participants were 8 months to 3 years old, with MRI-confirmed perinatal ischemic stroke and early signs of hemiparesis. The intervention was play-based, focused on weight-bearing, balance and walking for 1 hour/day, 4 days/week for 12 weeks. The primary outcome was the Gross Motor Function Measure-66 (GMFM-66). Secondary outcomes included steps and gait analyses. Final follow-up occurred at age 4. Results Thirty-four children participated (25 RCT, 9 Parent-trained). The improvement in GMFM-66 over 12 weeks was greater for the Immediate than the Delay Group in the RCT (average change 3.4 units higher) and greater in younger children. Average step counts reached 1370-3750 steps/session in the last week of training for all children. Parent-trained children also improved but with greater variability. Conclusions Early, activity-intensive lower extremity therapy for young children with perinatal stroke is feasible and improves gross motor function in the short term. Longer term improvement may require additional bouts of intervention. Clinical trial registration This study was registered at ClinicalTrials.gov (NCT01773369).
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Affiliation(s)
- Caitlin Hurd
- Department of Physical Therapy, University of Alberta, Edmonton, AB, Canada
| | - Donna Livingstone
- Department of Physical Therapy, University of Alberta, Edmonton, AB, Canada
| | - Kelly Brunton
- Department of Physical Therapy, University of Alberta, Edmonton, AB, Canada
| | - Allison Smith
- Department of Physical Therapy, University of Alberta, Edmonton, AB, Canada
| | - Monica Gorassini
- Department of Biomedical Engineering, University of Alberta, Edmonton, AB, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Man-Joe Watt
- Department of Physical Therapy, University of Alberta, Edmonton, AB, Canada
| | - John Andersen
- Department of Physical Therapy, University of Alberta, Edmonton, AB, Canada
| | - Adam Kirton
- Department of Physical Therapy, University of Alberta, Edmonton, AB, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
| | - Jaynie F. Yang
- Department of Physical Therapy, University of Alberta, Edmonton, AB, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
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35
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Craig BT, Kinney-Lang E, Hilderley AJ, Carlson HL, Kirton A. Structural connectivity of the sensorimotor network within the non-lesioned hemisphere of children with perinatal stroke. Sci Rep 2022; 12:3866. [PMID: 35264665 PMCID: PMC8907195 DOI: 10.1038/s41598-022-07863-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 02/21/2022] [Indexed: 11/09/2022] Open
Abstract
Perinatal stroke occurs early in life and often leads to a permanent, disabling weakness to one side of the body. To test the hypothesis that non-lesioned hemisphere sensorimotor network structural connectivity in children with perinatal stroke is different from controls, we used diffusion imaging and graph theory to explore structural topology between these populations. Children underwent diffusion and anatomical 3T MRI. Whole-brain tractography was constrained using a brain atlas creating an adjacency matrix containing connectivity values. Graph theory metrics including betweenness centrality, clustering coefficient, and both neighbourhood and hierarchical complexity of sensorimotor nodes were compared to controls. Relationships between these connectivity metrics and validated sensorimotor assessments were explored. Eighty-five participants included 27 with venous stroke (mean age = 11.5 ± 3.7 years), 26 with arterial stroke (mean age = 12.7 ± 4.0 years), and 32 controls (mean age = 13.3 ± 3.6 years). Non-lesioned primary motor (M1), somatosensory (S1) and supplementary motor (SMA) areas demonstrated lower betweenness centrality and higher clustering coefficient in stroke groups. Clustering coefficient of M1, S1, and SMA were inversely associated with clinical motor function. Hemispheric betweenness centrality and clustering coefficient were higher in stroke groups compared to controls. Hierarchical and average neighbourhood complexity across the hemisphere were lower in stroke groups. Developmental plasticity alters the connectivity of key nodes within the sensorimotor network of the non-lesioned hemisphere following perinatal stroke and contributes to clinical disability.
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Affiliation(s)
- Brandon T Craig
- Calgary Pediatric Stroke Program, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Eli Kinney-Lang
- Calgary Pediatric Stroke Program, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Alicia J Hilderley
- Calgary Pediatric Stroke Program, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Helen L Carlson
- Calgary Pediatric Stroke Program, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. .,Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. .,Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. .,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. .,Department of Clinical Neuroscience, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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Li E, Smithson L, Khan M, Kirton A, Pei J, Andersen J, Yager JY, Brooks BL, Rasmussen C. Effects of Perinatal Stroke on Executive Functioning and Mathematics Performance in Children. J Child Neurol 2022; 37:133-140. [PMID: 34985353 PMCID: PMC8801623 DOI: 10.1177/08830738211063683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The goal of this study was to examine executive functioning, math performance, and visuospatial processing skills of children with perinatal stroke, which have not been well explored in this population. Participants included 18 children with perinatal stroke (aged 6-16 years old) and their primary caregiver. Each child completed standardized tests of executive function and visuospatial processing skills, Intelligence Quotient (IQ), and math achievement. Performance on executive function, IQ, math, and visuospatial processing tests was significantly lower in children with perinatal stroke when compared to normative means. Poorer inhibitory control was associated with worse math performance. Increased age at testing was associated with better performance on visuospatial ability (using standardized scores), and females performed better than males on a test of inhibitory control. Children with perinatal stroke displayed a range of neuropsychological impairments, and difficulties with executive function (inhibition) may contribute to math difficulties in this population.
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Affiliation(s)
- Eliza Li
- University of Alberta, Edmonton, Alberta, Canada
| | - Lisa Smithson
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | | | - Adam Kirton
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | | | - John Andersen
- University of Alberta, Edmonton, Alberta, Canada,Glenrose Rehabilitation Hospital, Edmonton, Alberta, Canada
| | | | - Brian L. Brooks
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada,Glenrose Rehabilitation Hospital, Edmonton, Alberta, Canada,Faculty of Arts, University of Calgary, Calgary, Alberta, Canada,Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | - Carmen Rasmussen
- University of Alberta, Edmonton, Alberta, Canada,Carmen Rasmussen, Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, 4-478, Edmonton Clinic Health Academy (ECHA), 11405-87 Avenue, Edmonton, Alberta T6G 1C9, Canada.
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37
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Larsen N, Craig BT, Hilderley AJ, Virani S, Murias K, Brooks BL, Kirton A, Carlson HL. Frontal interhemispheric structural connectivity, attention, and executive function in children with perinatal stroke. Brain Behav 2022; 12:e2433. [PMID: 34825521 PMCID: PMC8785614 DOI: 10.1002/brb3.2433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/18/2021] [Accepted: 10/25/2021] [Indexed: 11/23/2022] Open
Abstract
Perinatal stroke affects ∼1 in 1000 births and concomitant cognitive impairments are common but poorly understood. Rates of Attention Deficit/Hyperactivity Disorder (ADHD) are increased 5-10× and executive dysfunction can be disabling. We used diffusion imaging to investigate whether stroke-related differences in frontal white matter (WM) relate to cognitive impairments. Anterior forceps were isolated using tractography and sampled along the tract. Resulting metrics quantified frontal WM microstructure. Associations between WM metrics and parent ratings of ADHD symptoms (ADHD-5 rating scale) and executive functioning (Behavior Rating Inventory of Executive Function (BRIEF)) were explored. Eighty-three children were recruited (arterial ischemic stroke [AIS] n = 26; periventricular venous infarction [PVI] n = 26; controls n = 31). WM metrics were altered for stroke groups compared to controls. Along-tract analyses showed differences in WM metrics in areas approximating the lesion as well as more remote differences at midline and in the nonlesioned hemisphere. WM metrics correlated with parental ratings of ADHD and executive function such that higher diffusivity values were associated with poorer function. These findings suggest that underlying microstructure of frontal white matter quantified via tractography may provide a relevant biomarker associated with cognition and behavior in children with perinatal stroke.
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Affiliation(s)
- Nicole Larsen
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada
| | - Brandon T Craig
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada.,Department of Pediatrics, University of Calgary, Calgary, Canada
| | - Alicia J Hilderley
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada.,Department of Pediatrics, University of Calgary, Calgary, Canada
| | - Shane Virani
- Department of Pediatrics, University of Calgary, Calgary, Canada
| | - Kara Murias
- Hotchkiss Brain Institute, University of Calgary, Calgary, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada.,Department of Pediatrics, University of Calgary, Calgary, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, Canada
| | - Brian L Brooks
- Hotchkiss Brain Institute, University of Calgary, Calgary, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada.,Department of Pediatrics, University of Calgary, Calgary, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, Canada.,Department of Psychology, University of Calgary, Calgary, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada.,Department of Pediatrics, University of Calgary, Calgary, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, Canada.,Department of Radiology, University of Calgary, Calgary, Canada
| | - Helen L Carlson
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Canada.,Hotchkiss Brain Institute, University of Calgary, Calgary, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Canada.,Department of Pediatrics, University of Calgary, Calgary, Canada
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Hassett J, Carlson H, Babwani A, Kirton A. Bihemispheric developmental alterations in basal ganglia volumes following unilateral perinatal stroke. NeuroImage: Clinical 2022; 35:103143. [PMID: 36002972 PMCID: PMC9421529 DOI: 10.1016/j.nicl.2022.103143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 06/25/2022] [Accepted: 08/01/2022] [Indexed: 12/02/2022] Open
Abstract
Basal ganglia segmentation appears reliable in children with perinatal stroke. Alterations from perinatal stroke to basal ganglia development may be bihemispheric. Stroke type may dictate nucleus-specific differences in basal ganglia development. Putamen volume is associated with motor function in children with perinatal stroke.
Introduction Perinatal stroke affects millions of children and results in lifelong disability. Two forms prevail: arterial ischemic stroke (AIS), and periventricular venous infarction (PVI). With such focal damage early in life, neural structures may reorganize during development to determine clinical function, particularly in the contralesional hemisphere. Such processes are increasingly understood in the motor system, however, the role of the basal ganglia, a group of subcortical nuclei that are critical to movement, behaviour, and learning, remain relatively unexplored. Perinatal strokes that directly damage the basal ganglia have been associated with worse motor outcomes, but how developmental plasticity affects bilateral basal ganglia structure is unknown. We hypothesized that children with perinatal stroke have alterations in bilateral basal ganglia volumes, the degree of which correlates with clinical motor function. Methods Children with AIS or PVI, and controls, aged 6–19 years, were recruited from a population-based cohort. MRIs were acquired on a 3 T GE MR750w scanner. High-resolution T1-weighted images (166 slices, 1 mm isotropic voxels) underwent manual segmentations of bilateral caudate and putamen. Extracted volumes were corrected for total intracranial volume. A structure volume ratio quantified hemispheric asymmetry of caudate and putamen (non-dominant/dominant hemisphere structure volume) with ratios closer to 1 reflecting a greater degree of symmetry between structures. Participants were additionally dichotomized by volume ratios into two groups, those with values above the group mean (0.8) and those below. Motor function was assessed using the Assisting Hand Assessment (AHA) and the Box and Blocks test in affected (BBTA) and unaffected (BBTU) hands. Group differences in volumes were explored using Kruskal-Wallis tests, and interhemispheric differences using Wilcoxon. Partial Spearman correlations explored associations between volumes and motor function (factoring out age, and whole-brain white matter volume, a proxy for lesion extent). Results In the dominant (non-lesioned) hemisphere, volumes were larger in AIS compared to PVI for both the caudate (p < 0.05) and putamen (p < 0.01) but comparable between stroke groups and controls. Non-dominant (lesioned) hemisphere volumes were larger for controls than AIS for the putamen (p < 0.05), and for the caudate in PVI (p = 0.001). Interhemispheric differences showed greater dominant hemisphere volumes for the putamen in controls (p < 0.01), for both the caudate (p < 0.01) and putamen (p < 0.001) in AIS, and for the caudate (p = 0.01) in PVI. Motor scores did not differ between AIS and PVI thus groups were combined to increase statistical power. Better motor scores were associated with larger non-dominant putamen volumes (BBTA: r = 0.40, p = 0.011), and larger putamen volume ratios (BBTA: r = 0.52, p < 0.001, AHA: r = 0.43, p < 0.01). For those with relatively symmetrical putamen volume ratios (ratio > group mean of 0.8), age was positively correlated with BBTA (r = 0.54, p < 0.01) and BBTU (r = 0.69, p < 0.001). For those with more asymmetrical putamen volume ratios, associations with motor function and age were not seen (BBTA: r = 0.21, p = 0.40, BBTU: r = 0.37, p = 0.13). Conclusion Specific perinatal stroke lesions affect different elements of basal ganglia development. PVI primarily affected the caudate, while AIS primarily affected the putamen. Putamen volumes in the lesioned hemisphere are associated with clinical motor function. The basal ganglia should be included in evolving models of developmental plasticity after perinatal stroke.
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Affiliation(s)
- Jordan Hassett
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Helen Carlson
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute (ACHRI), Calgary, AB, Canada
| | - Ali Babwani
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Adam Kirton
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute (ACHRI), Calgary, AB, Canada.
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Metzler MJ, O'Grady K, Fay L, Herrero M, Dunbar M, Fehlings D, Andersen J, Kirton A. Feasibility of High Repetition Upper Extremity Rehabilitation for Children with Unilateral Cerebral Palsy. Phys Occup Ther Pediatr 2022; 42:242-258. [PMID: 34872435 DOI: 10.1080/01942638.2021.2010857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AIMS In pediatric upper extremity rehabilitation, feasible repetition rates are unknown. Our objectives were to examine repetition rates during rehabilitation and their impact on outcomes. METHODS Children with unilateral cerebral palsy due to perinatal stroke (n = 55, median 10 y 7 mo, 30 males) received Constraint-Induced Movement Therapy (CIMT) followed by Bimanual Therapy, each for 5 days. Repetitions were documented during one-on-one therapy (1.5 h/day). Outcomes included the Assisting Hand Assessment (AHA), Jebsen Taylor Test of Hand Function (JTTHF), and Box and Block Test (BBT). Means and standard deviations for motor outcomes and frequencies for repetition rates were calculated. Factors associated with repetition rates and outcome change were explored using standard linear regression. RESULTS Repetitions/hour averaged 365 ± 165 during CIMT and 285 ± 103 during Bimanual Therapy. Higher repetition rates were associated with higher baseline function by older age, a main effect of younger age, and improving motor skill (p < .05). Higher repetition rates corresponded with improvement of the AHA and BBT (p < .05, standardized ß = 0.392, 0.358). CONCLUSIONS Results suggest high repetition therapy is feasible in school-aged children with perinatal stroke, albeit with high individual variability. Multiple associations between repetition rates and baseline function and change point to the clinical importance of this measurable and potentially modifiable factor.
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Affiliation(s)
- Megan J Metzler
- Department of Clinical Neurosciences, Alberta Children's Hospital, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | | | - Linda Fay
- Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada
| | - Mia Herrero
- Department of Clinical Neurosciences, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Mary Dunbar
- Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada.,Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada
| | - Darcy Fehlings
- Holland Bloorview Kids Rehabilitation Hospital, Toronto, Ontario, Canada.,Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
| | - John Andersen
- Glenrose Rehabilitation Hospital, Edmonton, Alberta, Canada.,Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Adam Kirton
- Department of Clinical Neurosciences, Alberta Children's Hospital, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada.,Calgary Pediatric Stroke Program, University of Calgary, Calgary, Alberta, Canada.,Department of Pediatrics, Department of Clinical Neuroscience, University of Calgary, Calgary, Alberta, Canada.,Hotchkiss Brain Institute, Calgary, Alberta, Canada
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40
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Vitagliano M, Dunbar M, Dyck Holzinger S, Letourneau N, Dewey D, Oskoui M, Shevell M, Kirton A. Perinatal arterial ischemic stroke and periventricular venous infarction in infants with unilateral cerebral palsy. Dev Med Child Neurol 2022; 64:56-62. [PMID: 34374437 DOI: 10.1111/dmcn.15000] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/28/2021] [Indexed: 01/12/2023]
Abstract
AIM To explore clinical factors associated with perinatal arterial ischemic stroke (AIS) and periventricular venous infarction (PVI) in infants who develop unilateral cerebral palsy (CP). METHOD This was a case-control study. Data current to 2019 was extracted from the Canadian Cerebral Palsy Registry (CCPR). Cases were infants born at term with confirmed unilateral CP. Magnetic resonance images were stratified by expert review of reports as definitive perinatal stroke (AIS or PVI). Controls with common data elements were recruited from a population-based study in Alberta. Multivariable regression analyses were performed to estimate associations expressed as odds ratios with 95% confidence intervals. RESULTS Of 2093 cases from the CCPR, 662 had unilateral CP, of whom 299 (45%) had perinatal stroke: AIS 169 (57%) and PVI 130 (43%). Median age at diagnosis for AIS was 11.9 months (interquartile range: 6.2-25.7mo; range 0.17-104.1mo), and 58.6% were male. Median age at diagnosis for PVI was 25.3 months (interquartile range: 14.5-38mo, range 0.7-114.7mo) and 57.7% were male. Independent associations for both AIS and PVI on multivariable analysis were chorioamnionitis, illicit drug exposure, diabetes, gestational age, and maternal age. Variables associated with AIS alone were low Apgar score and prolonged rupture of membranes. Variables associated with PVI alone were small for gestational age and primigravida. INTERPRETATION Controlled analysis of disease-specific unilateral CP may offer unique perspectives on its pathophysiology. Acute intrapartum factors are mainly associated with AIS, while in utero factors are associated with PVI.
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Affiliation(s)
| | - Mary Dunbar
- Department of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Sasha Dyck Holzinger
- Canadian Cerebral Palsy Registry, Research Institute of McGill Health Center, Montreal, Quebec, Canada
| | - Nicole Letourneau
- Departments of Pediatrics, Psychiatry and Community Health Sciences, Faculty of Nursing and Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Deborah Dewey
- Departments of Pediatrics and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Maryam Oskoui
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada.,Departments of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Michael Shevell
- Department of Pediatrics, McGill University, Montreal, Quebec, Canada.,Departments of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Adam Kirton
- Department of Pediatrics and Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
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41
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Leong A, Floer A, Kirton A, Mineyko A. Response to "Head Circumference Is Correlated With Global Intelligence 7 Years After Neonatal Arterial Ischemic Stroke". J Child Neurol 2022; 37:98. [PMID: 34558342 DOI: 10.1177/08830738211018905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Amanda Leong
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Amalia Floer
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Alberta, Canada, Department of Pediatrics and Clinical Neurosciences, Alberta Children's Hospital, Calgary, Alberta, Canada
| | - Aleksandra Mineyko
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, Alberta, Canada, Department of Pediatrics and Clinical Neurosciences, Alberta Children's Hospital, Calgary, Alberta, Canada
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42
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Kahl CK, Swansburg R, Kirton A, Pringsheim T, Wilcox G, Zewdie E, Harris A, Croarkin PE, Nettel-Aguirre A, Chenji S, MacMaster FP. Targeted Interventions in Tourette's using Advanced Neuroimaging and Stimulation (TITANS): study protocol for a double-blind, randomised controlled trial of transcranial magnetic stimulation (TMS) to the supplementary motor area in children with Tourette's syndrome. BMJ Open 2021; 11:e053156. [PMID: 34952879 PMCID: PMC8712978 DOI: 10.1136/bmjopen-2021-053156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
INTRODUCTION Tourette's syndrome (TS) affects approximately 1% of children. This study will determine the efficacy and safety of paired comprehensive behavioural intervention for tics (CBIT) plus repetitive transcranial magnetic stimulation (rTMS) treatment in children with Tourette's syndrome. We hypothesise that CBIT and active rTMS to the supplementary motor area (SMA) will (1) decrease tic severity, and (2) be associated with changes indicative of enhanced neuroplasticity (eg, changes in in vivo metabolite concentrations and TMS neurophysiology measures). METHODS AND ANALYSIS This study will recruit 50 youth with TS, aged 6-18 for a phase II, double-blind, block randomised, sham-controlled trial comparing active rTMS plus CBIT to sham rTMS plus CBIT in a 1:1 ratio. The CBIT protocol is eight sessions over 10 weeks, once a week for 6 weeks and then biweekly. The rTMS protocol is 20 sessions of functional MRI-guided, low-frequency (1 Hz) rTMS targeted to the bilateral SMA over 5 weeks (weeks 2-6). MRI, clinical and motor assessments and neurophysiological evaluations including motor mapping will be performed 1 week before CBIT start, 1 week after rTMS treatment and 1 week after CBIT completion. The primary outcome measure is Tourette's symptom change from baseline to post-CBIT treatment, as measured by the Yale Global Tic Severity Scale. Secondary outcomes include changes in imaging, neurophysiological and behavioural markers. ETHICS AND DISSEMINATION Ethical approval by the Conjoint Health Research Ethics Board (REB18-0220). The results of this study will be published in peer-reviewed scientific journals, on ClinicalTrials.gov and shared with the Tourette and OCD Alberta Network. The results will also be disseminated through the Alberta Addictions and Mental Health Research Hub. TRIAL REGISTRATION NCT03844919.
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Affiliation(s)
- Cynthia K Kahl
- Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Rose Swansburg
- Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Adam Kirton
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Tamara Pringsheim
- Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Gabrielle Wilcox
- School and Applied Child Psychology, Werklund School of Education, University of Calgary, Calgary, Alberta, Canada
| | - Ephrem Zewdie
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Ashley Harris
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Department of Radiology, University of Calgary, Calgary, Alberta, Canada
| | - Paul E Croarkin
- Psychiatry and Psychology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Alberto Nettel-Aguirre
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Community Health Sciences, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - Sneha Chenji
- Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Frank P MacMaster
- Department of Psychiatry, University of Calgary, Calgary, Alberta, Canada
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Provincial Addictions and Mental Health, Alberta Health Services, Calgary, Alberta, Canada
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43
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Hollis A, Cole L, Zewdie E, Metzler MJ, Kirton A. Bilateral actigraphic quantification of upper extremity movement in hemiparetic children with perinatal stroke: a case control study. J Neuroeng Rehabil 2021; 18:172. [PMID: 34915898 PMCID: PMC8680110 DOI: 10.1186/s12984-021-00962-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/17/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hemiparetic cerebral palsy impacts millions of people worldwide. Assessment of bilateral motor function in real life remains a major challenge. We evaluated quantification of upper extremity movement in hemiparetic children using bilateral actigraphy. We hypothesized that movement asymmetry correlates with standard motor outcome measures. METHODS Hemiparetic and control participants wore bilateral wrist Actiwatch2 (Philips) for 48 h with movement counts recorded in 15-s intervals. The primary outcome was a novel statistic of movement asymmetry, the Actigraphic Movement Asymmetry Index (AMAI). Relationships between AMAI and standard motor outcomes (Assisting Hand Assessment, Melbourne Assessment, and Box and Block Test [BB]) were explored with Pearson or Spearman correlation. RESULTS 30 stroke (mean 11 years 2 months (3 years 10 months); 13 female, 17 male) and 23 control (mean 11 years 1 month (4 years 5 months); 8 female, 15 male) were enrolled. Stroke participants demonstrated higher asymmetry. Correlations between AMAI and standard tests were moderate and strongest during sleep (BB: r = 0.68, p < 0.01). CONCLUSIONS Standard tests may not reflect the extent of movement asymmetry during daily life in hemiparetic children. Bilateral actigraphy may be a valuable complementary tool for measuring arm movement, potentially enabling improved evaluation of therapies with a focus on child participation.
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Affiliation(s)
- Asha Hollis
- Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Lauran Cole
- Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Ephrem Zewdie
- Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Megan J Metzler
- Clinical Neurosciences, Alberta Children's Hospital, Calgary, Canada
| | - Adam Kirton
- Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Canada. .,Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada. .,Pediatric Neurology, Alberta Children's Hospital, 28 Oki Drive NW, Calgary, AB, T3B6A8, Canada.
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44
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Roberts JI, Woodward K, Kirton A, Esser MJ. Pearls & Oy-sters: Cerebral Abscess Secondary to Pulmonary Arteriovenous Malformation in Hereditary Hemorrhagic Telangiectasia. Neurology 2021; 98:292-295. [PMID: 34880085 DOI: 10.1212/wnl.0000000000013181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Hereditary hemorrhagic telangiectasia (HHT) is an autosomal-dominant condition which is linked to a myriad of neurological complications arising from vascular malformations of the brain, spinal cord, and lungs. Our case describes a previously healthy 3-year-old male who presented to hospital with fever of unknown origin and was found to have a brain abscess stemming from a pulmonary arteriovenous malformation (PAVM). This etiology was identified after a period of diagnostic delay; the medical team was suspicious for a proximal embolic source due to the presence of multiple tiny infarcts seen on MRI brain, but transthoracic echocardiogram and head and neck angiogram were unremarkable. Fortunately, an enhanced CT chest was performed, identifying a moderately-sized PAVM. PAVMs are associated with intracranial abscesses due to shunting and loss of the normal filtering effects of the lung capillary bed. Impaired pulmonary filtration can permit paradoxical thromboemboli and septic microemboli to enter systemic circulation, predisposing patients with PAVMs to cerebral abscess and ischemic stroke. Screening for PAVMs with contrast enhanced echocardiogram or enhanced CT chest may be considered in patients with cryptogenic brain abscess or recurrent embolic stroke of unknown origin. PAVMs are often associated with hereditary hemorrhagic telangiectasia (HHT). As many features of HHT have delayed clinical manifestation, genetic testing for HHT should be considered in patients with PAVM, even in the absence of other clinical features. In our case, genetic testing returned positive, confirming a new diagnosis of HHT type 1.
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Affiliation(s)
- Jodie I Roberts
- Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Kristine Woodward
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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45
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Giuffre A, Zewdie E, Wrightson J, Carlson H, Kuo HC, Babwani A, Kirton A. Effects of tDCS and HD-tDCS Enhanced Motor Learning on Robotic TMS Motor Maps in Children. Brain Stimul 2021. [DOI: 10.1016/j.brs.2021.10.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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46
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Geeraert BL, Wrightson JG, Kirton A, Carlson HL. MOSAICS: An open-source Python platform for brain stimulation mapping analysis. Brain Stimul 2021. [DOI: 10.1016/j.brs.2021.10.561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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47
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Floreani ED, Rowley D, Khan N, Kelly D, Robu I, Kirton A, Kinney-Lang E. Unlocking Independence: Exploring Movement with Brain-Computer Interface for Children with Severe Physical Disabilities. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:5864-5867. [PMID: 34892453 DOI: 10.1109/embc46164.2021.9630578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Children with severe physical disabilities are often unable to independently explore their environments, further contributing to complex developmental delays. Brain-computer interfaces (BCIs) could be a novel access method to power mobility for children who struggle to use existing alternate access technologies, allowing them to reap the developmental, social, and psychological benefits of independent mobility. In this pilot study we demonstrated that children with quadriplegic cerebral palsy can use a simple BCI system to explore movement with a power mobility device. Four children were able to use the BCI to drive forward at least 7m, although more practice is needed to achieve more efficient driving skills through sustained BCI activations.
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48
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Giuffre A, Zewdie E, Wrightson JG, Cole L, Carlson HL, Kuo HC, Babwani A, Kirton A. Effects of Transcranial Direct Current Stimulation and High-Definition Transcranial Direct Current Stimulation Enhanced Motor Learning on Robotic Transcranial Magnetic Stimulation Motor Maps in Children. Front Hum Neurosci 2021; 15:747840. [PMID: 34690726 PMCID: PMC8526891 DOI: 10.3389/fnhum.2021.747840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 09/16/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction: Conventional transcranial direct current stimulation (tDCS) and high-definition tDCS (HD-tDCS) may improve motor learning in children. Mechanisms are not understood. Neuronavigated robotic transcranial magnetic stimulation (TMS) can produce individualised maps of primary motor cortex (M1) topography. We aimed to determine the effects of tDCS- and HD-tDCS-enhanced motor learning on motor maps. Methods: Typically developing children aged 12-18 years were randomised to right M1 anodal tDCS, HD-tDCS, or Sham during training of their left-hand on the Purdue Pegboard Task (PPT) over 5 days. Bilateral motor mapping was performed at baseline (pre), day 5 (post), and 6-weeks retention time (RT). Primary muscle was the first dorsal interosseous (FDI) with secondary muscles of abductor pollicis brevis (APB) and adductor digiti minimi (ADM). Primary mapping outcomes were volume (mm2/mV) and area (mm2). Secondary outcomes were centre of gravity (COG, mm) and hotspot magnitude (mV). Linear mixed-effects modelling was employed to investigate effects of time and stimulation type (tDCS, HD-tDCS, Sham) on motor map characteristics. Results: Twenty-four right-handed participants (median age 15.5 years, 52% female) completed the study with no serious adverse events or dropouts. Quality maps could not be obtained in two participants. No effect of time or group were observed on map area or volume. LFDI COG (mm) differed in the medial-lateral plane (x-axis) between tDCS and Sham (p = 0.038) from pre-to-post mapping sessions. Shifts in map COG were also observed for secondary left-hand muscles. Map metrics did not correlate with behavioural changes. Conclusion: Robotic TMS mapping can safely assess motor cortex neurophysiology in children undergoing motor learning and neuromodulation interventions. Large effects on map area and volume were not observed while changes in COG may occur. Larger controlled studies are required to understand the role of motor maps in interventional neuroplasticity in children.
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Affiliation(s)
- Adrianna Giuffre
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Ephrem Zewdie
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - James G Wrightson
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, AB, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Lauran Cole
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, AB, Canada
| | - Helen L Carlson
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Hsing-Ching Kuo
- Department of Physical Medicine & Rehabilitation, University of California, Davis, Sacramento, CA, United States
| | - Ali Babwani
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, AB, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program, Alberta Children's Hospital, Calgary, AB, Canada.,Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.,Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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49
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Virani S, Rasmussen C, Zivanovic N, Smithson L, Pei J, Andersen J, Yager JY, Kirton A, Brooks BL. Learning and memory profiles in youth with perinatal stroke: a study of the Child and Adolescent Memory Profile (ChAMP). Child Neuropsychol 2021; 28:99-106. [PMID: 34375160 DOI: 10.1080/09297049.2021.1957089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
There is limited understanding of the effect of perinatal stroke on child and adolescent learning and memory abilities. This study sought to evaluate the clinical utility of the Child and Adolescent Memory Profile (ChAMP) in quantifying memory performance in youth with perinatal stroke. Children and adolescents aged 6-16 years old with a history of perinatal stroke (PS; n = 41) completed two subtests from the ChAMP (Lists and Objects). Age, sex, and ethnicity-matched healthy control (HC) data were obtained from the test publisher's standardization data set. Participants with a history of PS performed significantly worse (p < .05) with medium effect size (ƞp2 ≥ .06) than HC on the ChAMP Screening Index and on all ChAMP Lists and Objects scaled scores. Classification accuracy for the ChAMP scores ranged from 57% to 68% with the area under the curve ranging from .62-.75. No significant group differences on ChAMP performance (p > .05) were found for stroke side (left versus right-sided) or for seizure history (present versus absent). This study supports the utility of the ChAMP in perinatal stroke patients by demonstrating significantly worse performance in verbal and visual memory than HC. Classification accuracy is limited, but supportive for the Screening Index and Objects Delayed scores. The ChAMP may be a useful tool for evaluating cognition in this population when taken alongside the context of other tests, background history, and clinical observations.
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Affiliation(s)
- Shane Virani
- Departments of Pediatrics, University of Calgary, Calgary, AB, Canada.,Neurosciences Program, Alberta Children's Hospital, Calgary, AB, Canada
| | - Carmen Rasmussen
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Nikola Zivanovic
- Departments of Pediatrics, University of Calgary, Calgary, AB, Canada
| | - Lisa Smithson
- Department of Psychology, University of Alberta, Edmonton, AB, Canada
| | - Jacqueline Pei
- Department of Educational Psychology, University of Alberta, Edmonton, AB, Canada
| | - John Andersen
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Jerome Y Yager
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Adam Kirton
- Departments of Pediatrics, University of Calgary, Calgary, AB, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.,Child Brain and Mental Health Program, Alberta Children's Hospital Research Institute, Calgary, AB, Canada
| | - Brian L Brooks
- Departments of Pediatrics, University of Calgary, Calgary, AB, Canada.,Neurosciences Program, Alberta Children's Hospital, Calgary, AB, Canada.,Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.,Child Brain and Mental Health Program, Alberta Children's Hospital Research Institute, Calgary, AB, Canada.,Department of Psychology, University of Calgary, Calgary, AB, Canada
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50
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Sporns PB, Fullerton HJ, Lee S, Kirton A, Wildgruber M. Current treatment for childhood arterial ischaemic stroke. Lancet Child Adolesc Health 2021; 5:825-836. [PMID: 34331864 DOI: 10.1016/s2352-4642(21)00167-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/18/2021] [Accepted: 05/24/2021] [Indexed: 12/23/2022]
Abstract
Paediatric arterial ischaemic stroke is an important cause of neurological morbidity in children, with consequences including motor disorders, intellectual impairment, and epilepsy. The causes of paediatric arterial ischaemic stroke are unique compared with those associated with stroke in adulthood. The past decade has seen substantial advances in paediatric stroke research and clinical care, but many unanswered questions and controversies remain. Shortage of prospective evidence for the use of recanalisation therapies in patients with paediatric stroke has resulted in little standardisation of disease management. Substantial time delays in diagnosis and treatment continue to challenge best possible care. In this Review, we highlight on some of the most pressing and productive aspects of research in the treatment of arterial ischaemic stroke in children, including epidemiology and cause, rehabilitation, secondary stroke prevention, and treatment updates focusing on advances in hyperacute therapies such as intravenous thrombolysis, mechanical thrombectomy, and critical care. Finally, we provide a future perspective for improving outcomes and quality of life for affected children and their families.
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Affiliation(s)
- Peter B Sporns
- Department of Neuroradiology, Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland; Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Heather J Fullerton
- Departments of Neurology and Pediatrics, Weill Institute of Neurosciences, University of California at San Francisco, San Francisco, CA, USA
| | - Sarah Lee
- Division of Child Neurology, Department of Neurology, Stanford University, Palo Alto, CA, USA
| | - Adam Kirton
- Department of Pediatrics and Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Moritz Wildgruber
- Department of Radiology, University Hospital Munich, LMU Munich, Munich, Germany.
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