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Pabst L, Hoyt CR, Felling RJ, Smith AE, Harpster K, Pardo AC, Bridge JA, Jiang B, Gehred A, Lo W. Neuroimaging and Neurological Outcomes in Perinatal Arterial Ischemic Stroke: A Systematic Review and Meta-Analysis. Pediatr Neurol 2024; 157:19-28. [PMID: 38848613 DOI: 10.1016/j.pediatrneurol.2024.04.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/09/2024] [Accepted: 04/29/2024] [Indexed: 06/09/2024]
Abstract
BACKGROUND Prediction of outcomes in perinatal arterial ischemic stroke (PAIS) is challenging. We performed a systematic review and meta-analysis to determine whether infarct characteristics can predict outcomes in PAIS. METHODS A systematic search was conducted using five databases in January 2023. Studies were included if the sample included children with neonatal or presumed PAIS; if infarct size, location, or laterality was indicated; and if at least one motor, cognitive, or language outcome was reported. The level of evidence and risk of bias were evaluated using the Risk of Bias in Non-Randomized Studies of Interventions tool. Meta-analyses were conducted comparing infarct size or location with neurological outcomes when at least three studies could be analyzed. RESULTS Eighteen full-text articles were included in a systematic review with nine included in meta-analysis. Meta-analyses revealed that small strokes were associated with a lower risk of cerebral palsy/hemiplegia compared with large strokes (risk ratio [RR] = 0.263, P = 0.001) and a lower risk of epilepsy (RR = 0.182, P < 0.001). Middle cerebral artery (MCA) infarcts were not associated with a significantly different risk of cerebral palsy/hemiplegia compared with non-MCA strokes (RR = 1.220, P = 0.337). Bilateral infarcts were associated with a 48% risk of cerebral palsy/hemiplegia, a 26% risk of epilepsy, and a 58% risk of cognitive impairment. CONCLUSIONS Larger stroke size was associated with worse outcomes across multiple domains. Widely heterogeneous reporting of infarct characteristics and outcomes limits the comparison of studies and the analysis of outcomes. More consistent reporting of infarct characteristics and outcomes will be important to advance research in this field.
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Affiliation(s)
- Lisa Pabst
- Division of Neurology, Department of Pediatrics, Primary Children's Hospital, University of Utah, Salt Lake City, Utah.
| | - Catherine R Hoyt
- Program in Occupational Therapy, Department of Neurology, Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri
| | - Ryan J Felling
- Department of Neurology & Kennedy Krieger Institute, Johns Hopkins Medicine, Baltimore, Maryland
| | - Alyssa E Smith
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri
| | - Karen Harpster
- Division of Occupational Therapy and Physical Therapy, Cincinnati Children's Hospital, Cincinnati, Ohio
| | - Andrea C Pardo
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Jeffrey A Bridge
- Departments of Pediatrics and Psychiatry & Behavioral Health, Nationwide Children's Hospital and The Ohio State University College of Medicine, Center for Suicide Prevention and Research, Columbus, Ohio
| | - Bin Jiang
- Department of Radiology, Neuroradiology Section, Stanford University School of Medicine, Stanford, California
| | - Alison Gehred
- Nationwide Children's Hospital Library, Columbus, Ohio
| | - Warren Lo
- Division of Neurology, Nationwide Children's Hospital, Columbus, Ohio
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2
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Christensen R, de Vries LS, Cizmeci MN. Neuroimaging to guide neuroprognostication in the neonatal intensive care unit. Curr Opin Pediatr 2024; 36:190-197. [PMID: 37800448 DOI: 10.1097/mop.0000000000001299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
PURPOSE OF REVIEW Neurological problems are common in infants admitted to the neonatal intensive care unit (NICU). Various neuroimaging modalities are available for neonatal brain imaging and are selected based on presenting problem, timing and patient stability. RECENT FINDINGS Neuroimaging findings, taken together with clinical factors and serial neurological examination can be used to predict future neurodevelopmental outcomes. In this narrative review, we discuss neonatal neuroimaging modalities, and how these can be optimally utilized to assess infants in the NICU. We will review common patterns of brain injury and neurodevelopmental outcomes in hypoxic-ischemic encephalopathy, perinatal arterial ischemic stroke and preterm brain injury. SUMMARY Timely and accurate neuroprognostication can identify infants at risk for neurodevelopmental impairment and allow for early intervention and targeted therapies to improve outcomes.
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Affiliation(s)
- Rhandi Christensen
- Division of Neurology, The Hospital for Sick Children and the University of Toronto, Toronto, Canada
| | - Linda S de Vries
- Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Mehmet N Cizmeci
- Division of Neonatology, The Hospital for Sick Children and the University of Toronto, Toronto, Canada
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3
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Early predictors of neurodevelopment after perinatal arterial ischemic stroke: a systematic review and meta-analysis. Pediatr Res 2022:10.1038/s41390-022-02433-w. [PMID: 36575364 DOI: 10.1038/s41390-022-02433-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND AIMS Perinatal arterial ischemic stroke (PAIS) often has lifelong neurodevelopmental consequences. We aimed to review early predictors (<4 months of age) of long-term outcome. METHODS We carried out a systematic literature search (PubMed and Embase), and included articles describing term-born infants with PAIS that underwent a diagnostic procedure within four months of age, and had any reported outcome parameter ≥12 months of age. Two independent reviewers included studies and performed risk of bias analysis. RESULTS We included 41 articles reporting on 1395 infants, whereof 1255 (90%) infants underwent follow-up at a median of 4 years. A meta-analysis was performed for the development of cerebral palsy (n = 23 studies); the best predictor was the qualitative or quantitative assessment of the corticospinal tracts on MRI, followed by standardized motor assessments. For long-term cognitive functioning, bedside techniques including (a)EEG and NIRS might be valuable. Injury to the optic radiation on DTI correctly predicted visual field defects. No predictors could be identified for behavior, language, and post-neonatal epilepsy. CONCLUSION Corticospinal tract assessment on MRI and standardized motor assessments are best to predict cerebral palsy after PAIS. Future research should be focused on improving outcome prediction for non-motor outcomes. IMPACT We present a systematic review of early predictors for various long-term outcome categories after perinatal arterial ischemic stroke (PAIS), including a meta-analysis for the outcome unilateral spastic cerebral palsy. Corticospinal tract assessment on MRI and standardized motor assessments are best to predict cerebral palsy after PAIS, while bedside techniques such as (a)EEG and NIRS might improve cognitive outcome prediction. Future research should be focused on improving outcome prediction for non-motor outcomes.
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4
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Perinatal stroke: mapping and modulating developmental plasticity. Nat Rev Neurol 2021; 17:415-432. [PMID: 34127850 DOI: 10.1038/s41582-021-00503-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2021] [Indexed: 02/04/2023]
Abstract
Most cases of hemiparetic cerebral palsy are caused by perinatal stroke, resulting in lifelong disability for millions of people. However, our understanding of how the motor system develops following such early unilateral brain injury is increasing. Tools such as neuroimaging and brain stimulation are generating informed maps of the unique motor networks that emerge following perinatal stroke. As a focal injury of defined timing in an otherwise healthy brain, perinatal stroke represents an ideal human model of developmental plasticity. Here, we provide an introduction to perinatal stroke epidemiology and outcomes, before reviewing models of developmental plasticity after perinatal stroke. We then examine existing therapeutic approaches, including constraint, bimanual and other occupational therapies, and their potential synergy with non-invasive neurostimulation. We end by discussing the promise of exciting new therapies, including novel neurostimulation, brain-computer interfaces and robotics, all focused on improving outcomes after perinatal stroke.
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Jadavji Z, Zhang J, Paffrath B, Zewdie E, Kirton A. Can Children With Perinatal Stroke Use a Simple Brain Computer Interface? Stroke 2021; 52:2363-2370. [PMID: 34039029 DOI: 10.1161/strokeaha.120.030596] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Zeanna Jadavji
- Calgary Pediatric Stroke Program (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Hotchkiss Brain Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Alberta Children's Hospital Research Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada
| | - Jack Zhang
- Calgary Pediatric Stroke Program (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Hotchkiss Brain Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Alberta Children's Hospital Research Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada
| | - Brett Paffrath
- Calgary Pediatric Stroke Program (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Hotchkiss Brain Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Alberta Children's Hospital Research Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada
| | - Ephrem Zewdie
- Calgary Pediatric Stroke Program (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Hotchkiss Brain Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Alberta Children's Hospital Research Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Department of Pediatrics (E.Z.), Cumming School of Medicine, University of Calgary, Canada
| | - Adam Kirton
- Calgary Pediatric Stroke Program (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Hotchkiss Brain Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Alberta Children's Hospital Research Institute (Z.J., J.Z., B.P., E.Z., A.K.), Cumming School of Medicine, University of Calgary, Canada.,Department of Clinical Neurosciences (A.K.), Cumming School of Medicine, University of Calgary, Canada
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6
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Tataranno ML, Vijlbrief DC, Dudink J, Benders MJNL. Precision Medicine in Neonates: A Tailored Approach to Neonatal Brain Injury. Front Pediatr 2021; 9:634092. [PMID: 34095022 PMCID: PMC8171663 DOI: 10.3389/fped.2021.634092] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/14/2021] [Indexed: 11/27/2022] Open
Abstract
Despite advances in neonatal care to prevent neonatal brain injury and neurodevelopmental impairment, predicting long-term outcome in neonates at risk for brain injury remains difficult. Early prognosis is currently based on cranial ultrasound (CUS), MRI, EEG, NIRS, and/or general movements assessed at specific ages, and predicting outcome in an individual (precision medicine) is not yet possible. New algorithms based on large databases and machine learning applied to clinical, neuromonitoring, and neuroimaging data and genetic analysis and assays measuring multiple biomarkers (omics) can fulfill the needs of modern neonatology. A synergy of all these techniques and the use of automatic quantitative analysis might give clinicians the possibility to provide patient-targeted decision-making for individualized diagnosis, therapy, and outcome prediction. This review will first focus on common neonatal neurological diseases, associated risk factors, and most common treatments. After that, we will discuss how precision medicine and machine learning (ML) approaches could change the future of prediction and prognosis in this field.
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Affiliation(s)
| | | | | | - Manon J. N. L. Benders
- Department of Neonatology, Wilhelmina Children's Hospital/University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands
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7
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De Angelis LC, Brigati G, Polleri G, Malova M, Parodi A, Minghetti D, Rossi A, Massirio P, Traggiai C, Maghnie M, Ramenghi LA. Neonatal Hypoglycemia and Brain Vulnerability. Front Endocrinol (Lausanne) 2021; 12:634305. [PMID: 33796072 PMCID: PMC8008815 DOI: 10.3389/fendo.2021.634305] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 02/15/2021] [Indexed: 12/17/2022] Open
Abstract
Neonatal hypoglycemia is a common condition. A transient reduction in blood glucose values is part of a transitional metabolic adaptation following birth, which resolves within the first 48 to 72 h of life. In addition, several factors may interfere with glucose homeostasis, especially in case of limited metabolic stores or increased energy expenditure. Although the effect of mild transient asymptomatic hypoglycemia on brain development remains unclear, a correlation between severe and prolonged hypoglycemia and cerebral damage has been proven. A selective vulnerability of some brain regions to hypoglycemia including the second and the third superficial layers of the cerebral cortex, the dentate gyrus, the subiculum, the CA1 regions in the hippocampus, and the caudate-putamen nuclei has been observed. Several mechanisms contribute to neuronal damage during hypoglycemia. Neuronal depolarization induced by hypoglycemia leads to an elevated release of glutamate and aspartate, thus promoting excitotoxicity, and to an increased release of zinc to the extracellular space, causing the extensive activation of poly ADP-ribose polymerase-1 which promotes neuronal death. In this review we discuss the cerebral glucose homeostasis, the mechanisms of brain injury following neonatal hypoglycemia and the possible treatment strategies to reduce its occurrence.
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Affiliation(s)
- Laura Costanza De Angelis
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Giorgia Brigati
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Giulia Polleri
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Mariya Malova
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Alessandro Parodi
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Diego Minghetti
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Andrea Rossi
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
- Neuroradiology Unit, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto Giannina Gaslini, Genoa, Italy
| | - Paolo Massirio
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
| | - Cristina Traggiai
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Mohamad Maghnie
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
- Department of Pediatrics, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Luca Antonio Ramenghi
- Neonatal Intensive Care Unit, Department Mother and Child, IRCCS Istituto Giannina Gaslini, Genoa, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genoa, Genoa, Italy
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8
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Abstract
Perinatal stroke is a heterogeneous syndrome resulting from brain injury of vascular origin that occurs between 20 weeks of gestation and 28 days of postnatal life. The incidence of perinatal stroke is estimated to be between 1:1600 and 1:3000 live births (approximately 2500 children per year in the United States), though its actual incidence is difficult to estimate because it is likely underdiagnosed. Perinatal arterial ischemic stroke (PAIS) accounts for approximately 70% of cases of perinatal stroke. Cerebral sinovenous thrombosis, while less common, also accounts for a large proportion of the morbidity and mortality seen with perinatal stroke. Hemorrhagic stroke leads to disruption of neurologic function due to intracerebral hemorrhage that is nontraumatic in origin. While most cases of PAIS fall into one of these three categories, other patterns of injury should also be considered perinatal stroke. In some cases, the etiology of PAIS is not known but is idiopathic. This chapter will review the classification, risk factors, pathogenesis, clinical presentation, management, and long-term sequelae of perinatal stroke.
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Affiliation(s)
- Emmett E Whitaker
- Department of Anesthesiology, University of Vermont Larner College of Medicine, Burlington, VT, United States; Department of Neurological Sciences, University of Vermont Larner College of Medicine, Burlington, VT, United States.
| | - Marilyn J Cipolla
- Department of Neurological Sciences, University of Vermont Larner College of Medicine, Burlington, VT, United States; Department of Obstetrics, Gynecology & Reproductive Sciences, University of Vermont Larner College of Medicine, Burlington, VT, United States; Department of Pharmacology, University of Vermont Larner College of Medicine, Burlington, VT, United States
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9
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Goeggel Simonetti B, Rafay MF, Chung M, Lo WD, Beslow LA, Billinghurst LL, Fox CK, Pagnamenta A, Steinlin M, Mackay MT. Comparative study of posterior and anterior circulation stroke in childhood: Results from the International Pediatric Stroke Study. Neurology 2019; 94:e337-e344. [PMID: 31857436 DOI: 10.1212/wnl.0000000000008837] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 08/07/2019] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To compare risk factors, clinical presentation, and outcomes after posterior circulation arterial ischemic stroke (PCAIS) and anterior circulation arterial ischemic stroke (ACAIS) in neonates and children. METHODS In this international multicenter observational study including neonates and children up to 18 years of age with arterial ischemic stroke (AIS), we compared clinical and radiologic features according to stroke location. RESULTS Of 2,768 AIS cases, 507 (18%) were located in the posterior circulation, 1,931 (70%) in the anterior circulation, and 330 (12%) involved both. PCAIS was less frequent in neonates compared to children (8.8% vs 22%, p < 0.001). Children with PCAIS were older than children with ACAIS (median age 7.8 [interquartile range (IQR) 3.1-14] vs 5.1 [IQR 1.5-12] years, p < 0.001), and more often presented with headache (54% vs 32%, p < 0.001) and a lower Pediatric NIH Stroke Scale score (4 [IQR 2-8] vs 8 [IQR 3-13], p = 0.001). Cervicocephalic artery dissections (CCAD) were more frequent (20% vs 8.5%, p < 0.001), while cardioembolic strokes were less frequent (19% vs 32%, p < 0.001) in PCAIS. Case fatality rates were equal in both groups (2.9%). PCAIS survivors had a better outcome (normal neurologic examination at hospital discharge in 29% vs 21%, p = 0.002) than ACAIS survivors, although this trend was only observed in children and not in neonates. CONCLUSION PCAIS is less common than ACAIS in both neonates and children. Children with PCAIS are older and have a higher rate of CCAD, lower clinical stroke severity, and better outcome than children with ACAIS.
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Affiliation(s)
- Barbara Goeggel Simonetti
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia.
| | - Mubeen F Rafay
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
| | - Melissa Chung
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
| | - Warren D Lo
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
| | - Lauren A Beslow
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
| | - Lori L Billinghurst
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
| | - Christine K Fox
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
| | - Alberto Pagnamenta
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
| | - Maja Steinlin
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
| | - Mark T Mackay
- From the Neurovascular Research Group, Department of Neurology (B.G.S.), and Division of Child Neurology, Department of Pediatrics (B.G.S., M.S.), Inselspital Bern, University Hospital, University of Bern; Pediatric Neurology (B.G.S.), Institute of Pediatrics of Southern Switzerland, San Giovanni Hospital Bellinzona, Ente Ospedaliero Cantonale, Switzerland; Section of Pediatric Neurology, Department of Pediatrics and Child Health (M.F.R.), University of Manitoba, Children's Hospital Research Institute of Manitoba, Canada; Division of Neurology, Department of Pediatrics (M.C., W.D.L.), The Ohio State University and Nationwide Children's Hospital, Columbus; Division of Neurology (L.A.B., L.L.B.), Children's Hospital of Philadelphia; Departments of Neurology and Pediatrics (L.A.B., L.L.B.), Perelman School of Medicine at the University of Pennsylvania, Philadelphia; Departments of Neurology and Pediatrics (C.K.F.), University of California, San Francisco; Unit of Clinical Epidemiology (A.P.), Ente Ospedaliero Cantonale, Bellinzona; Division of Pneumology (A.P.), University of Geneva, Switzerland; and Department of Neurology (M.T.M.), Royal Children's Hospital Melbourne, Murdoch Children's Research Institute Melbourne, Parkville, Victoria, Australia
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10
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Fluss J, Dinomais M, Chabrier S. Perinatal stroke syndromes: Similarities and diversities in aetiology, outcome and management. Eur J Paediatr Neurol 2019; 23:368-383. [PMID: 30879961 DOI: 10.1016/j.ejpn.2019.02.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 02/04/2019] [Accepted: 02/24/2019] [Indexed: 01/09/2023]
Abstract
With a birth-prevalence of 37-67/100,000 (mostly term-born), perinatal stroke encompasses distinct disease-states with diverse causality, mechanism, time of onset, mode of presentation and outcome. Neonatal primary haemorrhagic stroke and ischemic events (also divided into neonatal arterial ischemic stroke and neonatal cerebral sinus venous thrombosis) that manifest soon after birth are distinguished from presumed perinatal - ischemic or haemorrhagic - stroke. Signs of the latter become apparent only beyond the neonatal period, most often with motor asymmetry or milestones delay, and occasionally with seizures. Acute or remote MRI defines the type of stroke and is useful for prognosis. Acute care relies on homeostatic maintenance. Seizures are often self-limited and anticonvulsant agents might be discontinued before discharge. Prolonged anticoagulation for a few weeks is an option in some cases of sinovenous thrombosis. Although the risk of severe impairment is low, many children develop mild to moderate multimodal developmental issues that require a multidisciplinary approach.
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Affiliation(s)
- Joel Fluss
- Pediatric Neurology Unit, Geneva Children's Hospital, 6 rue Willy-Donzé, 1211 Genève 4, Switzerland
| | - Mickaël Dinomais
- CHU Angers, Département de Médecine Physique et de Réadaptation, CHU Angers-Capucins, F-49933, Angers, France; Université d'Angers, Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS) EA7315, F-49000, Angers, France
| | - Stéphane Chabrier
- CHU Saint-Étienne, French Centre for Paediatric Stroke, Paediatric Physical and Rehabilitation Medicine Department, INSERM, CIC 1408, F-42055, Saint-Étienne, France; INSERM, U1059 Sainbiose, Univ Saint-Étienne, Univ Lyon, F-42023, Saint-Étienne, France.
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11
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Abstract
Perinatal arterial ischemic stroke is a relatively common and serious neurologic disorder that can affect the fetus, the preterm, and the term-born infant. It carries significant long-term disabilities. Herein we describe the current understanding of its etiology, pathophysiology and classification, different presentations, and optimal early management. We discuss the role of different brain imaging modalities in defining the extent of lesions and the impact this has on the prediction of outcomes. In recent years there has been progress in treatments, making early diagnosis and the understanding of likely morbidities imperative. An overview is given of the range of possible outcomes and optimal approaches to follow-up and support for the child and their family in the light of present knowledge.
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12
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Counsell SJ, Arichi T, Arulkumaran S, Rutherford MA. Fetal and neonatal neuroimaging. HANDBOOK OF CLINICAL NEUROLOGY 2019; 162:67-103. [PMID: 31324329 DOI: 10.1016/b978-0-444-64029-1.00004-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Magnetic resonance imaging (MRI) can provide detail of the soft tissues of the fetal and neonatal brain that cannot be obtained by any other imaging modality. Conventional T1 and T2 weighted sequences provide anatomic detail of the normally developing brain and can demonstrate lesions, including those associated with preterm birth, hypoxic ischemic encephalopathy, perinatal arterial stroke, infections, and congenital malformations. Specialized imaging techniques can be used to assess cerebral vasculature (magnetic resonance angiography and venography), cerebral metabolism (magnetic resonance spectroscopy), cerebral perfusion (arterial spin labeling), and function (functional MRI). A wealth of quantitative tools, most of which were originally developed for the adult brain, can be applied to study the developing brain in utero and postnatally including measures of tissue microstructure obtained from diffusion MRI, morphometric studies to measure whole brain and regional tissue volumes, and automated approaches to study cortical folding. In this chapter, we aim to describe different imaging approaches for the fetal and neonatal brain, and to discuss their use in a range of clinical applications.
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Affiliation(s)
- Serena J Counsell
- Centre for the Developing Brain, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom.
| | - Tomoki Arichi
- Centre for the Developing Brain, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Sophie Arulkumaran
- Centre for the Developing Brain, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
| | - Mary A Rutherford
- Centre for the Developing Brain, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom
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13
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Wagenaar N, Martinez-Biarge M, van der Aa NE, van Haastert IC, Groenendaal F, Benders MJNL, Cowan FM, de Vries LS. Neurodevelopment After Perinatal Arterial Ischemic Stroke. Pediatrics 2018; 142:peds.2017-4164. [PMID: 30072575 DOI: 10.1542/peds.2017-4164] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/30/2018] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Perinatal arterial ischemic stroke (PAIS) leads to cerebral palsy in ∼30% of affected children and has other neurologic sequelae. Authors of most outcome studies focus on middle cerebral artery (MCA) stroke without differentiating between site and extent of affected tissue. Our aim with this study was to report outcomes after different PAIS subtypes. METHODS Between 1990 and 2015, 188 term infants from 2 centers (London [n = 79] and Utrecht [n = 109]) had PAIS on their neonatal MRI. Scans were reevaluated to classify stroke territory and determine specific tissue involvement. At 18 to 93 (median 41.7) months, adverse neurodevelopmental outcomes were recorded as 1 or more of cerebral palsy, cognitive deficit, language delay, epilepsy, behavioral problems, or visual field defect. RESULTS The MCA territory was most often involved (90%), with posterior or anterior cerebral artery territory strokes occurring in 9% and 1%, respectively. Three infants died, and 24 had scans unavailable for reevaluation or were lost to follow-up. Of 161 infants seen, 54% had an adverse outcome. Outcomes were the same between centers. Main branch MCA stroke resulted in 100% adverse outcome, whereas other stroke subtypes had adverse outcomes in only 29% to 57%. The most important outcome predictors were involvement of the corticospinal tracts and basal ganglia. CONCLUSIONS Although neurodevelopmental outcome was adverse in at least 1 domain with main branch MCA stroke, in other PAIS subtypes outcome was favorable in 43% to 71% of children. Site and tissue involvement is most important in determining the outcome in PAIS.
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Affiliation(s)
- Nienke Wagenaar
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands; and
| | | | - Niek E van der Aa
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands; and
| | - Ingrid C van Haastert
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands; and
| | - Floris Groenendaal
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands; and
| | - Manon J N L Benders
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands; and
| | - Frances M Cowan
- Department of Paediatrics, Imperial College London, London, United Kingdom
| | - Linda S de Vries
- Department of Neonatology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands; and
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Kuczynski AM, Kirton A, Semrau JA, Dukelow SP. Bilateral reaching deficits after unilateral perinatal ischemic stroke: a population-based case-control study. J Neuroeng Rehabil 2018; 15:77. [PMID: 30115093 PMCID: PMC6097295 DOI: 10.1186/s12984-018-0420-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 07/31/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Detailed kinematics of motor impairment of the contralesional ("affected") and ipsilesional ("unaffected") limbs in children with hemiparetic cerebral palsy are not well understood. We aimed to 1) quantify the kinematics of reaching in both arms of hemiparetic children with perinatal stroke using a robotic exoskeleton, and 2) assess the correlation of kinematic reaching parameters with clinical motor assessments. METHODS This prospective, case-control study involved the Alberta Perinatal Stroke Project, a population-based research cohort, and the Foothills Medical Center Stroke Robotics Laboratory in Calgary, Alberta over a four year period. Prospective cases were collected through the Calgary Stroke Program and included term-born children with magnetic resonance imaging confirmed perinatal ischemic stroke and upper extremity deficits. Control participants were recruited from the community. Participants completed a visually guided reaching task in the KINARM robot with each arm separately, with 10 parameters quantifying motor function. Kinematic measures were compared to clinical assessments and stroke type. RESULTS Fifty children with perinatal ischemic stroke (28 arterial, mean age: 12.5 ± 3.9 years; 22 venous, mean age: 11.5 ± 3.8 years) and upper extremity deficits were compared to healthy controls (n = 147, mean age: 12.7 ± 3.9 years). Perinatal stroke groups demonstrated contralesional motor impairments compared to controls when reaching out (arterial = 10/10, venous = 8/10), and back (arterial = 10/10, venous = 6/10) with largest errors in reaction time, initial direction error, movement length and time. Ipsilesional impairments were also found when reaching out (arterial = 7/10, venous = 1/10) and back (arterial = 6/10). The arterial group performed worse than venous on both contralesional and ipsilesional parameters. Contralesional reaching parameters showed modest correlations with clinical measures in the arterial group. CONCLUSIONS Robotic assessment of reaching behavior can quantify complex, upper limb dysfunction in children with perinatal ischemic stroke. The ipsilesional, "unaffected" limb is often abnormal and may be a target for therapeutic interventions in stroke-induced hemiparetic cerebral palsy.
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Affiliation(s)
- Andrea M Kuczynski
- University of Calgary, Calgary, AB, T2N 2T9, Canada.,Section of Neurology, Department of Pediatrics, Alberta Children's Hospital Research Institute, Calgary, AB, Canada
| | - Adam Kirton
- University of Calgary, Calgary, AB, T2N 2T9, Canada.,Section of Neurology, Department of Pediatrics, Alberta Children's Hospital Research Institute, Calgary, AB, Canada.,Department of Clinical Neurosciences, Foothills Medical Centre, Hotchkiss Brain Institute, 1403 - 29th St. NW, Calgary, AB, Canada
| | - Jennifer A Semrau
- University of Calgary, Calgary, AB, T2N 2T9, Canada.,Department of Clinical Neurosciences, Foothills Medical Centre, Hotchkiss Brain Institute, 1403 - 29th St. NW, Calgary, AB, Canada
| | - Sean P Dukelow
- University of Calgary, Calgary, AB, T2N 2T9, Canada. .,Department of Clinical Neurosciences, Foothills Medical Centre, Hotchkiss Brain Institute, 1403 - 29th St. NW, Calgary, AB, Canada.
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15
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Abstract
OBJECTIVE Here we review the current literature regarding visual outcome after perinatal and childhood stroke. BACKGROUND Visual deficits following stroke in adults are common and have been previously reviewed. Less is known about visual deficits following stroke in neonates and older children. Most of the literature regarding this subject has focused on preterm infants, or on other types of brain injury. This review summarizes the types of visual deficits seen in term infants following perinatal stroke and children following childhood stroke and predictors of outcome. This review suggests areas for future research. METHODS We performed Ovid MEDLINE searches regarding visual testing in children, vision after childhood stroke, neuroplasticity of vision, treatment of visual impairment after stroke, and driving safety concerns after stroke. RESULTS Visual field defects were the most commonly reported visual deficits after perinatal and childhood stroke. There is a significant lack of literature on this subject, and most is in the form of case reports and case series. Children can experience significant visual morbidity after stroke, and have the potential to show some recovery, but guidelines on assessment and treatment of this population are lacking. CONCLUSIONS There were limitations to this study, given the small amount of literature available. Although stroke in children can result in severe visual deficits, most children regain at least a portion of their vision. However, more research is needed regarding visual assessment of this population, long-term visual outcomes, specific predictors of recovery, and treatment options.
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Affiliation(s)
- Lauren B Crawford
- Division of Pediatric Neurology, Department of Neurology, Indiana University School of Medicine, Riley Hospital for Children, Indianapolis, Indiana
| | - Meredith R Golomb
- Division of Pediatric Neurology, Department of Neurology, Indiana University School of Medicine, Riley Hospital for Children, Indianapolis, Indiana.
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16
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Husson B, Durand C, Hertz-Pannier L. [Recommendations for imaging neonatal ischemic stroke]. Arch Pediatr 2017; 24:9S19-9S27. [PMID: 28867033 DOI: 10.1016/s0929-693x(17)30327-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Neuroimaging is critical for the diagnosis of neonatal arterial ischemic stroke (NAIS) and for prognosis estimation. The purpose of this work is to define guidelines of clinical neuroimaging for the diagnosis of NAIS, for the optimization of the imaging timing and for the assessment of the prognostic value of each imaging technique. A systematic search of electronic databases (Medline via Pubmed) for studies whose title and abstract were focused on NAIS has been conducted. One hundred and ten articles were selected and their results were analyzed by three Senior Practitioners of pediatric radiology using common methodology for guidelines elaboration within the group of experts gathered by Scientific Societies in the field. MRI with a diffu si on-weighted sequence (DWI) and T1, T2, and T2*-weighted sequences must be performed in the case of suspected NAIS (no sedation is required). In the first hours after the injury, an acute ischemic lesion is characterized by a hypersignal on the diffusion-weighted sequence, with a decrease of the apparent coefficient of diffusion (ADC). The best time to evaluate the extent of the ischemic lesion is between day 2 and day 4 after injury, when the ADC decrease reaches its nadir. In the acute phase, US may be useful as first imaging at the bedside to exclude other pathologies like large space-occupying hemorrhages, but its specific added value on NAIS diagnosis or prognosis assessment is very low. CT scan has no added value in NAIS, compared to MRI. Motor outcome is correlated with the extent of the lesion and with the presence of a definite injury of the corticospinal tract, which is well seen on the diffusion sequence at the acute stage. A secondary atrophy within the mesencephalon (cerebral peduncles) is tied in with a high risk of hemiplegia. Visual outcome is more often compromised in the case of lesions of the posterior cerebral artery territory.
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Affiliation(s)
- B Husson
- AP-HP, centre national de référence de l'AVC de l'enfant et service de radiologie pédiatrique, Hôpital Le Kremlin-Bicêtre, 78, rue du Général-Leclerc, Le Kremlin-Bicêtre, 94270 France.
| | - C Durand
- CHU de Grenoble, clinique d'imagerie pédiatrique, hôpital Couple-Enfant, quai Yermoloff, Grenoble, 38043 France
| | - L Hertz-Pannier
- UMR129, INSERM/Université Paris-Descartes, UNIACTZ/Neurospin, CEA-Saclay Bat 145, Gif-sur-Yvette, 9191 France
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17
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Favrais G, Nguyen The Tich S. [Biological monitoring and other explorations in the acute phase of a neonatal arterial ischemic stroke (excluding hemostasis)]. Arch Pediatr 2017; 24:9S35-9S40. [PMID: 28867036 DOI: 10.1016/s0929-693x(17)30329-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Neonatal monitoring and other explorations required just after neonatal arterial ischemic stroke (NAIS) diagnosis remain elusive. This review attempts to propose guidelines on this topic. During neonatal period, three major contexts related to NAIS emerge: 1) Metabolic disorders including hypoglycemia; 2) Early post-natal infections; 3) Cardio-vascular anomalies. Different patient profiles have been defined (typical, atypical and at risk profiles). According to these profiles, a final decisional tree including biological monitoring and complementary explorations has been suggested to caregivers.
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Affiliation(s)
- G Favrais
- CHRU de Tours, service de réanimation néonatale et pédiatrique, Hôpital Clocheville, 49, boulevard Béranger, Tours, 37000 France; INSERM U930, Université François-Rabelais-de-Tours, 10, boulevard Tonnellé, Tours, 37032 France.
| | - S Nguyen The Tich
- CHRU Lille, service de neuropédiatrie, Hôpital Salengro, rue du Professeur-Émile-Laine, Lille, 59037 France
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18
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de Almeida Carvalho Duarte N, Collange Grecco LA, Zanon N, Galli M, Fregni F, Santos Oliveira C. Motor Cortex Plasticity in Children With Spastic Cerebral Palsy: A Systematic Review. J Mot Behav 2017; 49:355-364. [PMID: 27754798 DOI: 10.1080/00222895.2016.1219310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
A review of the literature was performed to answer the following questions: Does motor cortex excitability correlate with motor function? Do motor cortex excitability and cortex activation change after a rehabilitation program that results in improvements in motor outcomes? Can the 10-20 electroencephalography (EEG) system be used to locate the primary motor cortex when employing transcranial direct current stimulation? Is there a bihemispheric imbalance in individuals with cerebral palsy similar to what is observed in stroke survivors? the authors found there is an adaptation in the geometry of motor areas and the cortical representation of movement is variable following a brain lesion. The 10-20 EEG system may not be the best option for locating the primary motor cortex and positioning electrodes for noninvasive brain stimulation in children with cerebral palsy.
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Affiliation(s)
- Natália de Almeida Carvalho Duarte
- a Rehabilitation Sciences, Universidade Nove de Julho , São Paulo , Brazil
- b Pediatric Neurosurgical Center (CENEPE) , São Paulo , Brazil
| | - Luanda André Collange Grecco
- a Rehabilitation Sciences, Universidade Nove de Julho , São Paulo , Brazil
- b Pediatric Neurosurgical Center (CENEPE) , São Paulo , Brazil
| | - Nelci Zanon
- b Pediatric Neurosurgical Center (CENEPE) , São Paulo , Brazil
| | - Manuela Galli
- c Department of Electronic Information and Bioengineering , Politecnico di Milan , Italy
- d IRCCS San Raffaele Pisana , Rome , Italy
| | - Felipe Fregni
- e Department of Physical Medicine & Rehabilitation, Spaulding Neuromodulation Center , Spaulding Rehabilitation Hospital, Harvard Medical School , Boston , Massachusetts
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Guiraut C, Cauchon N, Lepage M, Sébire G. Perinatal Arterial Ischemic Stroke Is Associated to Materno-Fetal Immune Activation and Intracranial Arteritis. Int J Mol Sci 2016; 17:ijms17121980. [PMID: 27898024 PMCID: PMC5187780 DOI: 10.3390/ijms17121980] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/14/2016] [Accepted: 11/21/2016] [Indexed: 12/22/2022] Open
Abstract
The medium-size intra-cranial arteries arising from the carotid bifurcation are prone to perinatal arterial ischemic strokes (PAIS). PAIS’ physiopathology needs to be better understood to develop preventive and therapeutic interventions that are currently missing. We hypothesized that materno-fetal inflammation leads to a vasculitis affecting selectively the carotidian tree and promoting a focal thrombosis and subsequent stroke. Dams were injected with saline or lipopolysaccharide (LPS) from Escherichia coli. A prothrombotic stress was applied on LPS-exposed vs. saline (S)-exposed middle cerebral arteries (MCA). Immunolabeling detected the inflammatory markers of interest. In S-exposed newborn pups, a constitutive higher density of macrophages combined to higher expressions of tumor necrosis factor-α (TNF-α), and interleukin 1β (IL-1β) was observed within the wall of intra- vs. extra-cranial cervicocephalic arteries. LPS-induced maternal and placental inflammatory responses mediated by IL-1β, TNF-α and monocyte chemotactic protein 1 (MCP-1) were associated with: (i) increased density of pro-inflammatory macrophages (M1 phenotype); and (ii) pro-inflammatory orientation of the IL-1 system (IL-1β/IL-1 receptor antagonist (IL-1Ra) ratio) within the wall of LPS-, vs. S-exposed, intra-cranial arteries susceptible to PAIS. LPS plus photothrombosis, but not sole photothrombosis, triggered ischemic strokes and subsequent motor impairments. Based on these preclinical results, the combination of pro-thrombotic stress and selective intra-cranial arteritis arising from end gestational maternal immune activation seem to play a role in the pathophysiology of human PAIS.
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Affiliation(s)
- Clémence Guiraut
- Département de Pédiatrie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Nicole Cauchon
- Département de Médecine Nucléaire et Radiobiologie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Martin Lepage
- Département de Médecine Nucléaire et Radiobiologie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Guillaume Sébire
- Département de Pédiatrie, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
- Child Neurology Division, Department of Pediatrics, McGill University, Montréal, QC H4A 3J1, Canada.
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Martinez-Biarge M, Cheong JLY, Diez-Sebastian J, Mercuri E, Dubowitz LMS, Cowan FM. Risk Factors for Neonatal Arterial Ischemic Stroke: The Importance of the Intrapartum Period. J Pediatr 2016; 173:62-68.e1. [PMID: 27049002 DOI: 10.1016/j.jpeds.2016.02.064] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/22/2016] [Accepted: 02/25/2016] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To investigate risk factors for neonatal arterial ischemic stroke (NAIS), and compare them with those present in term controls and infants with hypoxic-ischemic encephalopathy (HIE). STUDY DESIGN Antepartum and intrapartum data were collected at presentation from 79 infants with NAIS and compared with 239 controls and 405 infants with HIE. The relationships between risk factors and NAIS were explored using univariable and multivariable regression. RESULTS Compared with controls, infants with NAIS more frequently had a family history of seizures/neurologic diseases, primiparous mothers, and male sex. Mothers of infants with NAIS experienced more intrapartum complications: prolonged rupture of membranes (21% vs 2%), fever (14% vs 3%), thick meconium (25% vs 7%), prolonged second stage (31% vs 13%), tight nuchal cord (15% vs 6%), and abnorm8al cardiotocography (67% vs 21%). Male sex (OR 2.8), family history of seizures (OR 6.5) or neurologic diseases (OR 4.9), and ≥1 (OR 5.8) and ≥2 (OR 21.8) intrapartum complications were independently associated with NAIS. Infants with NAIS and HIE experienced similar rates though different patterns of intrapartum complications. Maternal fever, prolonged rupture of membranes, prolonged second stage, tight nuchal cord, and failed ventouse delivery were more common in NAIS; thick meconium, sentinel events, and shoulder dystocia were more frequent in HIE. Abnormal cardiotocography occurred in 67% of NAIS and 77.5% of infants with HIE. One infant with NAIS and no infant with HIE was delivered by elective cesarean (10% of controls). CONCLUSIONS NAIS is multifactorial in origin and shares risk factors in common with HIE. Intrapartum events may play a more significant role in the pathogenesis of NAIS than previously recognized.
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Affiliation(s)
| | - Jeanie L Y Cheong
- Department of Pediatrics, Imperial College London, London, United Kingdom; Departments of Newborn Research and Neonatal Services, Royal Women's Hospital, Melbourne, Australia
| | | | - Eugenio Mercuri
- Department of Pediatrics, Imperial College London, London, United Kingdom; Pediatric Neurology Unit, Catholic University, Rome, Italy
| | - Lilly M S Dubowitz
- Department of Pediatrics, Imperial College London, London, United Kingdom
| | - Frances M Cowan
- Department of Pediatrics, Imperial College London, London, United Kingdom
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Larpthaveesarp A, Georgevits M, Ferriero DM, Gonzalez FF. Delayed erythropoietin therapy improves histological and behavioral outcomes after transient neonatal stroke. Neurobiol Dis 2016; 93:57-63. [PMID: 27142685 DOI: 10.1016/j.nbd.2016.04.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 04/06/2016] [Accepted: 04/29/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND AND PURPOSE Stroke is a major cause of neonatal morbidity, often with delayed diagnosis and with no accepted therapeutic options. The purpose of this study is to investigate the efficacy of delayed initiation of multiple dose erythropoietin (EPO) therapy in improving histological and behavioral outcomes after early transient ischemic stroke. METHODS 32 postnatal day 10 (P10) Sprague-Dawley rats underwent sham surgery or transient middle cerebral artery occlusion (tMCAO) for 3h, resulting in injury involving the striatum and parieto-temporal cortex. EPO (1000U/kg per dose×3 doses) or vehicle was administered intraperitoneally starting one week after tMCAO (at P17, P20, and P23). At four weeks after tMCAO, sensorimotor function was assessed in these four groups (6 vehicle-sham, 6 EPO-sham, 10 vehicle-tMCAO and 10 EPO-tMCAO) with forepaw preference in cylinder rearing trials. Brains were then harvested for hemispheric volume and Western blot analysis. RESULTS EPO-tMCAO animals had significant improvement in forepaw symmetry in cylinder rearing trials compared to vehicle-tMCAO animals, and did not differ from sham animals. There was also significant preservation of hemispheric brain volume in EPO-tMCAO compared to vehicle-tMCAO animals. No differences in ongoing cell death at P17 or P24 were noted by spectrin cleavage in either EPO-tMCAO or vehicle-tMCAO groups. CONCLUSIONS These results suggest that delayed EPO therapy improves both behavioral and histological outcomes at one month following transient neonatal stroke, and may provide a late treatment alternative for early brain injury.
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Affiliation(s)
- Amara Larpthaveesarp
- Department of Pediatrics, University of California San Francisco, San Francisco, CA 94143, United States
| | - Margaret Georgevits
- Department of Pediatrics, University of California San Francisco, San Francisco, CA 94143, United States
| | - Donna M Ferriero
- Department of Pediatrics, University of California San Francisco, San Francisco, CA 94143, United States; Department of Neurology, University of California San Francisco, San Francisco, CA 94143, United States
| | - Fernando F Gonzalez
- Department of Pediatrics, University of California San Francisco, San Francisco, CA 94143, United States.
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Hielkema T, Hadders-Algra M. Motor and cognitive outcome after specific early lesions of the brain - a systematic review. Dev Med Child Neurol 2016; 58 Suppl 4:46-52. [PMID: 27027607 DOI: 10.1111/dmcn.13047] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/01/2015] [Indexed: 11/30/2022]
Abstract
The aim of this systematic review was to study motor and cognitive outcome in infants with severe early brain lesions and to evaluate effects of side of the lesion, sex, and social economic status on outcome. A literature search was performed using the databases Pubmed and Embase. Included studies involved infants with either cystic periventricular leukomalacia (cPVL), preterm, or term stroke (i.e. parenchymal lesion of the brain). Outcome was expressed as cerebral palsy (CP) and intellectual disability (mental retardation). Median prevalence rates of CP after cPVL, preterm, and term stroke were 86%, 71%, and 29% respectively; of intellectual disability 50%, 27%, and 33%. Most infants with cPVL developed bilateral CP, those with term stroke unilateral CP, whereas after preterm stroke bilateral and unilateral CP occurred equally often. Information on the effects of sex and social economic status on outcome after specific brain lesions was very limited. Our findings show that the risk for CP is high after cPVL, moderate after preterm stroke, and lowest after term stroke. The risk for intellectual disability after an early brain lesion is lower than that for CP. Predicting outcome at individual level remains difficult; new imaging techniques may improve predicting developmental trajectories.
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Affiliation(s)
- Tjitske Hielkema
- University of Groningen, University Medical Center Groningen, Department of Paediatrics, Division of Developmental Neurology, Groningen, the Netherlands.,University of Groningen, University Medical Center Groningen, Center for Rehabilitation, Groningen, the Netherlands
| | - Mijna Hadders-Algra
- University of Groningen, University Medical Center Groningen, Department of Paediatrics, Division of Developmental Neurology, Groningen, the Netherlands
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Koenraads Y, Porro GL, Braun KPJ, Groenendaal F, de Vries LS, van der Aa NE. Prediction of visual field defects in newborn infants with perinatal arterial ischemic stroke using early MRI and DTI-based tractography of the optic radiation. Eur J Paediatr Neurol 2016; 20:309-318. [PMID: 26708504 DOI: 10.1016/j.ejpn.2015.11.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 10/08/2015] [Accepted: 11/23/2015] [Indexed: 01/16/2023]
Abstract
PURPOSE Visual field (VF) defects are common sequelae of perinatal arterial ischemic stroke (PAIS). The aim of this study was to investigate the predictive value of magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) for VF defects following PAIS. METHODS Nineteen infants with unilateral PAIS, who underwent conventional MRI (T1/T2) and DTI at three months of age and a VF examination later in life (median age 3.2 yrs) were included. Conventional T1-weighted MRI was used to assess asymmetry of the optic radiation (OR). DTI-based tractography of the bilateral OR was performed, and the average fractional anisotropy (FA), axial (λ1), radial (λ23) and mean diffusivity (MD) were extracted. Asymmetry of the OR on MRI and DTI was used as a predictor of VF defects using receiver operating characteristic (ROC) analysis. RESULTS Of the 19 infants, nine had a normal VF, eight had a VF defect (six hemianopia and two quadrantanopia), and two had an inconclusive VF test. The presence or absence of a VF defect could be correctly predicted using conventional MRI assessment in the majority of the infants, with an area under the curve (AUC) of 0.90 (95% CI 0.66-0.99). Prediction based on DTI parameter asymmetry indices showed an AUC of 0.96 (95% CI 0.74-1.00), 0.78 (95% CI 0.52-0.94), 0.93 (95% CI 0.70-1.00) and 0.90 (95% CI 0.66-0.99) for FA, λ1, λ23 and MD, respectively. CONCLUSIONS VF defects following PAIS can be reliably predicted by assessment of asymmetry of the OR at three months on conventional MRI and DTI-based tractography with comparable predictive values. Conventional T1-weighted MRI can be used in clinical practice.
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Affiliation(s)
- Yvonne Koenraads
- Department of Ophthalmology, University Medical Center Utrecht, The Netherlands.
| | - Giorgio L Porro
- Department of Ophthalmology, University Medical Center Utrecht, The Netherlands.
| | - Kees P J Braun
- Department of Pediatric Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, The Netherlands.
| | - Floris Groenendaal
- Department of Neonatology, Brain Center Rudolf Magnus, University Medical Center Utrecht, The Netherlands.
| | - Linda S de Vries
- Department of Neonatology, Brain Center Rudolf Magnus, University Medical Center Utrecht, The Netherlands.
| | - Niek E van der Aa
- Department of Neonatology, Brain Center Rudolf Magnus, University Medical Center Utrecht, The Netherlands.
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24
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Neonatal DTI early after birth predicts motor outcome in preterm infants with periventricular hemorrhagic infarction. Pediatr Res 2015; 78:298-303. [PMID: 25978802 DOI: 10.1038/pr.2015.94] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Accepted: 02/05/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND To determine the association between early neonatal diffusion tensor imaging (DTI) and the development of unilateral spastic cerebral palsy (USCP) in preterm infants with periventricular hemorrhagic infarction (PVHI). METHODS Preterm infants with PVHI were assessed with early (≤4 wk after birth) and term-equivalent age MRI-DTI. Involvement of corticospinal tracts was assessed by visual assessment of the posterior limb of the internal capsule (PLIC) on DTI (classified asymmetrical, equivocal, or symmetrical) and by an atlas-based approach calculating fractional anisotropy asymmetry index in the PLIC. Motor outcome was assessed at ≥15 mo corrected age. RESULTS Seven out of 23 infants with PVHI developed USCP. Their PLIC was visually scored as asymmetrical in 6 and equivocal in 1 on the early DTI. Thirteen out of 16 infants with a symmetrical motor development had a symmetrical PLIC on early DTI, the remaining 3 were equivocal. All infants with USCP had a fractional anisotropy asymmetry index of >0.05 (optimal cut-off value) on early DTI. In infants with a symmetrical motor development (n = 16), 14 had an asymmetry index ≤0.05 while 2 had an index >0.05. CONCLUSION DTI in preterm infants with PVHI within a few weeks after birth is associated with later motor development.
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van der Aa NE, Benders MJNL, Groenendaal F, de Vries LS. Neonatal stroke: a review of the current evidence on epidemiology, pathogenesis, diagnostics and therapeutic options. Acta Paediatr 2014; 103:356-64. [PMID: 24428836 DOI: 10.1111/apa.12555] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 01/02/2014] [Accepted: 01/10/2014] [Indexed: 12/26/2022]
Abstract
UNLABELLED Neonatal stroke, including perinatal arterial ischaemic stroke and cerebral sinovenous thrombosis, remains a serious problem in the neonate. This article reviews the current evidence on epidemiology, pathogenesis, diagnostics and therapeutic options. CONCLUSION Although our understanding of the underlying mechanisms and possible risk factors has improved, little progress has been made towards therapeutic options. Considering the high incidence of neurological sequelae, the need for therapeutic options is high and should be the focus of future research.
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Affiliation(s)
- NE van der Aa
- Department of Neonatology; Wilhelmina Children's Hospital; University Medical Center Utrecht; Utrecht The Netherlands
| | - MJNL Benders
- Department of Neonatology; Wilhelmina Children's Hospital; University Medical Center Utrecht; Utrecht The Netherlands
| | - F Groenendaal
- Department of Neonatology; Wilhelmina Children's Hospital; University Medical Center Utrecht; Utrecht The Netherlands
| | - LS de Vries
- Department of Neonatology; Wilhelmina Children's Hospital; University Medical Center Utrecht; Utrecht The Netherlands
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Teo L, Bourne JA. A reproducible and translatable model of focal ischemia in the visual cortex of infant and adult marmoset monkeys. Brain Pathol 2014; 24:459-74. [PMID: 25469561 DOI: 10.1111/bpa.12129] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 01/21/2014] [Indexed: 12/12/2022] Open
Abstract
Models of ischemic brain injury in the nonhuman primate (NHP) are advantageous for investigating mechanisms of central nervous system (CNS) injuries and testing of new therapeutic strategies. However, issues of reproducibility and survivability persist in NHP models of CNS injuries. Furthermore, there are currently no pediatric NHP models of ischemic brain injury. Therefore, we have developed a NHP model of cortical focal ischemia that is highly reproducible throughout life to enable better understanding of downstream consequences of injury. Posterior cerebral arterial occlusion was induced through intracortical injections of endothelin-1 in adult (n = 5) and neonatal (n = 3) marmosets, followed by magnetic resonance imaging (MRI), histology and immunohistochemistry. MRI revealed tissue hyperintensity at the lesion site at 1-7 days followed by isointensity at 14-21 days. Peripheral macrophage and serum albumin infiltration was detected at 1 day, persisting at 21 days. The proportional loss of total V1 as a result of infarction was consistent in adults and neonates. Minor hemorrhagic transformation was detected at 21 days at the lesion core, while neovascularization was detected in neonates, but not in adults. We have developed a highly reproducible and survivable model of focal ischemia in the adult and neonatal marmoset primary visual cortex, demonstrating similar downstream anatomical and cellular pathology to those observed in post-ischemic humans.
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Affiliation(s)
- Leon Teo
- Australian Regenerative Medicine Institute, Monash University, Clayton, Vic., Australia
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27
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Murias K, Brooks B, Kirton A, Iaria G. A Review of Cognitive Outcomes in Children Following Perinatal Stroke. Dev Neuropsychol 2014; 39:131-57. [DOI: 10.1080/87565641.2013.870178] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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van der Aa NE, Northington FJ, Stone BS, Groenendaal F, Benders MJ, Porro G, Yoshida S, Mori S, de Vries LS, Zhang J. Quantification of white matter injury following neonatal stroke with serial DTI. Pediatr Res 2013; 73:756-62. [PMID: 23478641 PMCID: PMC6117163 DOI: 10.1038/pr.2013.45] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND Diffusion tensor imaging (DTI) can be used to predict outcome following perinatal arterial ischemic stroke (PAIS), although little is known about white matter changes over time. METHODS Infants with PAIS were serially scanned in the neonatal period (n = 15), at 3 mo (n = 16), and at 24 mo (n = 8). Fractional anisotropy (FA) values in five regions of interest (anterior and posterior limb of the internal capsule, corpus callosum, optic radiation, and posterior thalamic radiation) were obtained and compared with FA values of healthy controls and neurodevelopmental outcome. RESULTS In the neonatal period, no differences in FA values were found. At 3 mo, the six infants who ultimately developed motor deficits showed lower FA values in all affected regions. Four infants developed a visual field defect and showed lower FA values in the affected optic radiation at 3 mo (0.22 vs. 0.29; P = 0.03). Finally, a correlation between FA values of the corpus callosum at 3 mo and the Griffiths developmental quotients was found (r = 0.66; P = 0.03). At 24 mo, a similar pattern was observed. CONCLUSION Neonatal FA measurements may underestimate the extent of injury following PAIS. FA measurements at 3 mo could be considered a more reliable predictor of neurodevelopmental outcome and correlate with DTI findings at 24 mo.
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Affiliation(s)
- Niek E van der Aa
- Department of Neonatology, Wilhelmina Children’s Hospital, University Medical Center, Utrecht, The Netherlands
| | - Frances J. Northington
- Department of Pediatrics, Eudowood Neonatal Pulmonary Division-NICN, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Brian S. Stone
- Department of Pediatrics, Eudowood Neonatal Pulmonary Division-NICN, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neonatology, Children’s National Medical Center, Washington, DC, USA
| | - Floris Groenendaal
- Department of Neonatology, Wilhelmina Children’s Hospital, University Medical Center, Utrecht, The Netherlands
| | - Manon J.N.L. Benders
- Department of Neonatology, Wilhelmina Children’s Hospital, University Medical Center, Utrecht, The Netherlands
| | - Giorgio Porro
- Department of Ophthalmology, University Medical Center Utrecht, The Netherlands
| | - Shoko Yoshida
- Dept. of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Susumu Mori
- Dept. of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,F.M. Kirby Functional Imaging Center, Kennedy Krieger Institute, Baltimore, MD, USA
| | - Linda S. de Vries
- Department of Neonatology, Wilhelmina Children’s Hospital, University Medical Center, Utrecht, The Netherlands
| | - Jiangyang Zhang
- Dept. of Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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