1
|
Constantin E, MacLean JE, Barrowman N, Horwood L, Bendiak GN, Kirk VG, Hadjiyannakis S, Legault L, Foster BJ, Katz SL. Behavioral and emotional characteristics of Canadian children with obesity and moderate-severe sleep-disordered breathing treated with positive airway pressure: longitudinal changes and associations with adherence. J Clin Sleep Med 2023; 19:555-562. [PMID: 36541207 PMCID: PMC9978431 DOI: 10.5664/jcsm.10386] [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: 04/15/2022] [Revised: 11/02/2022] [Accepted: 11/02/2022] [Indexed: 12/24/2022]
Abstract
STUDY OBJECTIVES Behavioral characteristics and outcomes of positive airway pressure (PAP) therapy in children with obesity and moderate-severe sleep-disordered breathing (SDB) have not been reported. Our aims were to 1) determine baseline behavioral/emotional symptoms of this population and characterize changes over time with PAP, and 2) examine associations between baseline behavioral/emotional symptoms and PAP adherence. METHODS This multicenter prospective cohort study of children with obesity prescribed PAP for moderate-severe SDB assessed PAP adherence (≥ 4 h/night, >50% of nights, usage diaries, downloads) and compared behavioral/emotional characteristics with parent- and child-reported Conners Rating Scale (Conners) and the Child Behavior Checklist (CBCL) at baseline and 1 year after PAP prescription between adherent and nonadherent participants; scores at baseline were compared retrospectively between adherence groups. RESULTS Twenty-four children were included (median 14.1 years [IQR:12.4,16.0]; 87.5% males). Baseline Conners and CBCL scores were elevated (parent- and child-reported Conners inattention and hyperactivity subscales and CBCL subscales [total, internalizing, externalizing]). Baseline parent-reported Conners scores were significantly more elevated in the nonadherent than adherent group (inattention: 73.3 ± 8.5 vs 60.5 ± 14.6, P = .01; hyperactivity: 70.9 ± 11.1 vs 59.1 ± 16.0, P = .05). This difference was present 1 year later for inattention (P = .01) but not for hyperactivity (P = .09). Parent-reported CBCL scores improved over 1 year in adherent but not nonadherent participants. CONCLUSIONS We found that children with obesity and moderate-severe SDB have elevated symptoms of behavioral/emotional concerns on standardized testing. Parent-reported emotional characteristics improved in the adherent but not in the nonadherent group. Children with greater inattention/hyperactivity at baseline were less adherent to PAP, suggesting this may contribute to PAP nonadherence. CITATION Constantin E, MacLean JE, Barrowman N, et al. Behavioral and emotional characteristics of Canadian children with obesity and moderate-severe sleep-disordered breathing treated with positive airway pressure: longitudinal changes and associations with adherence. J Clin Sleep Med. 2023;19(3):555-562.
Collapse
Affiliation(s)
- Evelyn Constantin
- Montreal Children’s Hospital/McGill University Health Centre, Montreal, Quebec, Canada
| | - Joanna E. MacLean
- Stollery Children’s Hospital/University of Alberta, Edmonton, Alberta, Canada
| | - Nicholas Barrowman
- Children’s Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Linda Horwood
- Montreal Children’s Hospital/McGill University Health Centre, Montreal, Quebec, Canada
| | - Glenda N. Bendiak
- Alberta Children’s Hospital/University of Calgary, Calgary, Alberta, Canada
| | - Valerie G. Kirk
- Alberta Children’s Hospital/University of Calgary, Calgary, Alberta, Canada
| | - Stasia Hadjiyannakis
- Children’s Hospital of Eastern Ontario/University of Ottawa, Ottawa, Ontario, Canada
| | - Laurent Legault
- Montreal Children’s Hospital/McGill University Health Centre, Montreal, Quebec, Canada
| | - Bethany J. Foster
- Montreal Children’s Hospital/McGill University Health Centre, Montreal, Quebec, Canada
| | - Sherri L. Katz
- Children’s Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
- Children’s Hospital of Eastern Ontario/University of Ottawa, Ottawa, Ontario, Canada
| |
Collapse
|
2
|
Houston SA, Gu Y, Vandemoortele T, Dumoulin E, Gillson AME, Tyan CC, Sakr L, Bendiak GN, Gonzalez AV, Fortin M. Bronchoscopy during the COVID-19 pandemic: A Canadian Thoracic Society Position Statement update. Canadian Journal of Respiratory, Critical Care, and Sleep Medicine 2022. [DOI: 10.1080/24745332.2022.2137317] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Simon A. Houston
- Division of Respirology, QEII-Halifax Infirmary, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Yusing Gu
- Division of Respirology, QEII-Halifax Infirmary, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Thomas Vandemoortele
- Division of Respiratory Medicine, Department of Medicine, University of Montreal, Montreal, Québec, Canada
| | - Elaine Dumoulin
- Division of Respiratory Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Ashley-Mae E. Gillson
- Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Chung-Chun Tyan
- Division of Respirology, Critical Care and Sleep Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Lama Sakr
- Division of Respirology, Jewish General Hospital, Department of Medicine, McGill University, Montreal, Québec, Canada
| | - Glenda N. Bendiak
- Section of Respiratory Medicine, Alberta Children’s Hospital, Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Anne V. Gonzalez
- Division of Respiratory Medicine, Department of Medicine, McGill University Health Centre, Montreal, Québec, Canada
| | - Marc Fortin
- Division of Respirology, Institut universitaire de cardiologie et de pneumologie de Québec, Department of Medicine, Université Laval, Québec, Québec, Canada
| |
Collapse
|
3
|
Monagel DA, Guilcher GMT, Nettel-Aguirre A, Bendiak GN. Pulmonary function in children and adolescents with sickle cell disease after nonmyeloablative hematopoietic cell transplantation. Pediatr Blood Cancer 2022; 69:e29927. [PMID: 35927947 DOI: 10.1002/pbc.29927] [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: 03/21/2022] [Revised: 07/04/2022] [Accepted: 07/20/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Pulmonary complications are common in sickle cell disease (SCD). The use of standard myeloablative conditioning regimens may increase the risk of lung injury. We report serial pulmonary function testing (PFT) outcomes in children with SCD who underwent a matched-sibling donor hematopoietic cell transplantation (HCT) using nonmyeloablative (NMA) protocol. METHODS This is a retrospective chart review describing pulmonary outcomes in pediatric patients post HCT. The conditioning regimen consisted of alemtuzumab and a single fraction of 300 cGy of total body irradiation (TBI), and sirolimus for graft-versus-host disease (GVHD) prophylaxis. Serial PFT testing was performed pre and post HCT. The evaluated pulmonary measures included: forced vital capacity (FVC), forced expiratory volume in the first second (FEV1 ), FEV1 /FVC, and forced expiratory flow (FEF25-75 ). RESULTS Twelve subjects were included in the analysis. All had HbSS genotype, and five of the 12 patients had one or more episodes of acute chest syndrome prior to HCT. Serial PFT measures were completed per patient. No patient was diagnosed with chronic GVHD of any organ post HCT. The baseline median FVC, FEV1 , FEV1 /FVC, and FEF25-75 were within the normal range and remained relatively unchanged post HCT. A linear mixed effects model, adjusting for gender and time from HCT, suggested no significant relationship between HCT and PFT parameters, including FVC, FEV1 , and FEV1 /FVC. Interestingly, the FEF25-75 results exhibited a shift in the means post HCT (pre-HCT 86.2% predicted and post-HCT 93.05% predicted, p-value = .018). CONCLUSION Our study suggests that HCT in children with SCD may prevent the anticipated decline in pulmonary function over time.
Collapse
Affiliation(s)
- Dania A Monagel
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.,King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
| | - Gregory M T Guilcher
- Departments of Oncology and Pediatrics, Alberta Children's Hospital, University of Calgary, Calgary, Alberta, Canada
| | - Alberto Nettel-Aguirre
- National Institute for Applied Statistics Research Australia (NIASRA), School of Mathematics and Applied Statistics, Faculty of Engineering and Information Services, University of Wollongong, Wollongong, New South Wales, Australia
| | - Glenda N Bendiak
- Section of Respiratory Medicine, Department of Pediatrics, University of Calgary and Alberta Children's Hospital, Calgary, Alberta, Canada
| |
Collapse
|
4
|
Myette RL, Feber J, Blinder H, Bendiak GN, Foster BJ, MacLean JE, Constantin E, Katz SL. Blood pressure variability in children with obesity and sleep-disordered breathing following positive airway pressure treatment. Pediatr Res 2022; 92:810-815. [PMID: 34785780 DOI: 10.1038/s41390-021-01841-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/14/2021] [Accepted: 10/28/2021] [Indexed: 11/09/2022]
Abstract
Obese youth with sleep-disordered breathing are treated with positive airway pressure to improve sleep and cardiovascular status. While improvements in sleep parameters have been confirmed, a study by Katz et al. showed no major improvement in ambulatory blood pressure. The aim of this ancillary study was to analyze short-term blood pressure variability, following positive airway pressure treatment, as a more sensitive marker of cardiovascular health. We analyzed 24-h blood pressure variability data in 17 children, taken at baseline and after 12 months of treatment. These data were derived from an already published prospective, multicenter cohort study conducted in 27 youth (8-16 years) with obesity who were prescribed 1-year of positive airway pressure for moderate-severe sleep-disordered breathing. Significant decreases were found in 24 h systolic blood pressure (p = 0.040) and nighttime diastolic blood pressure (p = 0.041) average real variability, and diastolic blood pressure (p = 0.035) weighted standard deviation. Significant decreases were noted in nighttime diastolic blood pressure time rate variability (p = 0.007). Positive airway pressure treatment resulted in a significant decrease in blood pressure variability, suggesting a clinically significant improvement of sympathetic nerve activity in youth with obesity and sleep-disordered breathing. IMPACT: Cardiovascular variability, as measured by blood pressure variability, is improved in children following positive airway pressure treatment. Our novel findings of improved blood pressure time rate variability are the first described in the pediatric literature. Future studies aimed at analyzing target organ damage in this patient population will allow for a better understanding as to whether alterations in blood pressure variability translate to decreasing target organ damage in children, as seen in adults.
Collapse
Affiliation(s)
- Robert L Myette
- Division of Nephrology, Department of Pediatrics, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada.,Kidney Research Center, Department of Cellular and Molecular Medicine, The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - Janusz Feber
- Division of Nephrology, Department of Pediatrics, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada. .,Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada.
| | - Henrietta Blinder
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - Glenda N Bendiak
- Alberta Children's Hospital, University of Calgary, Calgary, AB, Canada
| | - Bethany J Foster
- Centre for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montreal, QC, Canada.,Montreal Children's Hospital of the McGill University Health Centre, Montreal, Canada.,Department of Pediatrics, McGill University, Montreal, QC, Canada.,Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC, Canada
| | - Joanna E MacLean
- Stollery Children's Hospital, University of Alberta, Edmonton, AB, Canada
| | - Evelyn Constantin
- Pediatric Sleep Medicine, Department of Pediatrics, Montreal Children's Hospital, Montreal, QC, Canada.,Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Sherri L Katz
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada.,Division of Respirology, Department of Pediatrics, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada
| |
Collapse
|
5
|
Katz SL, Kirk VG, MacLean JE, Bendiak GN, Harrison MA, Barrowman N, Hoey L, Horwood L, Hadjiyannakis S, Legault L, Foster BJ, Constantin E. Factors related to positive airway pressure therapy adherence in children with obesity and sleep-disordered breathing. J Clin Sleep Med 2020; 16:733-741. [PMID: 32029068 DOI: 10.5664/jcsm.8336] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
STUDY OBJECTIVES Positive airway pressure (PAP) is used to treat children with concurrent obesity and sleep-disordered breathing (SDB), but achieving adherence remains challenging. We aimed to identify factors associated with PAP adherence in a prospective cohort of children with obesity prescribed PAP for newly diagnosed SDB. METHODS A questionnaire to assess factors related to PAP adherence was administered to participants and their parent ≥12 months after enrollment. Adherence (PAP use ≥4 hours/night on >50% of nights) was measured with PAP machine downloads, diaries, and physician assessments. Questionnaire responses were compared between adherent/nonadherent participants and between children/parents. Age, total and obstructive apnea-hypopnea index (OAHI), lowest oxygen saturation, and highest carbon dioxide were compared between adherent/nonadherent children with univariate differences of medians, with 95% confidence intervals. RESULTS Fourteen children (median age: 14.3 years; 93% male; all with obstructive sleep apnea) were included. Eleven (79%) were adherent to PAP. SDB symptom improvement was reported in 9 of 14 children (64%); 8 of 14 children (57%) had positive experiences with PAP. Most children assumed an active role in PAP initiation and felt supported by the clinical team. Responses between adherent/nonadherent groups and between children/parents were similar. Oxygen saturation nadir (median difference between nonadherent and adherent groups: 8.9%; 95% confidence interval: 1.7, 16.1), but not age, apnea-hypopnea index, OAHI, or maximum carbon dioxide, was associated with PAP adherence. CONCLUSIONS Children with obesity-related SDB with lower nocturnal oxygen saturation nadir were more likely to adhere to PAP therapy. Ensuring adequate understanding of PAP therapy and medical team support are key factors in PAP success.
Collapse
Affiliation(s)
- Sherri L Katz
- Children's Hospital of Eastern Ontario/University of Ottawa, Ottawa, Ontario, Canada.,Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Valerie G Kirk
- Alberta Children's Hospital/University of Calgary, Calgary, Alberta, Canada
| | - Joanna E MacLean
- Stollery Children's Hospital/University of Alberta, Edmonton, Alberta, Canada
| | - Glenda N Bendiak
- Alberta Children's Hospital/University of Calgary, Calgary, Alberta, Canada
| | - Mary-Ann Harrison
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Nicholas Barrowman
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Lynda Hoey
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Linda Horwood
- Montreal Children's Hospital/McGill University, Montreal, Quebec, Canada
| | - Stasia Hadjiyannakis
- Children's Hospital of Eastern Ontario/University of Ottawa, Ottawa, Ontario, Canada
| | - Laurent Legault
- Montreal Children's Hospital/McGill University, Montreal, Quebec, Canada
| | - Bethany J Foster
- Montreal Children's Hospital/McGill University, Montreal, Quebec, Canada
| | - Evelyn Constantin
- Montreal Children's Hospital/McGill University, Montreal, Quebec, Canada
| |
Collapse
|
6
|
Gerdung CA, Castro Codesal ML, Nettle-Aguirre A, Kam K, Hanly PJ, Maclean JE, Bendiak GN. 0756 Use of Split-Night Polysomnography in Children with Sleep Disordered Breathing. Sleep 2018. [DOI: 10.1093/sleep/zsy061.755] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C A Gerdung
- Alberta Children’s Hospital, Calgary, AB, CANADA
| | | | - A Nettle-Aguirre
- Alberta Children’s Hospital Research Institute, Calgary, AB, CANADA
| | - K Kam
- Alberta Children’s Hospital, Calgary, AB, CANADA
| | - P J Hanly
- Foothills Medical Center, Calgary, AB, CANADA
| | - J E Maclean
- Stollery Children’s Hospital, Edmonton, AB, CANADA
| | - G N Bendiak
- Alberta Children’s Hospital, Calgary, AB, CANADA
- Alberta Children’s Hospital, Calgary, AB, CANADA
- Stollery Children’s Hospital, Edmonton, AB, CANADA
| |
Collapse
|
7
|
Katz SL, MacLean JE, Barrowman N, Hoey L, Horwood L, Bendiak GN, Kirk VG, Hadjiyannakis S, Legault L, Foster BJ, Constantin E. Long-Term Impact of Sleep-Disordered Breathing on Quality of Life in Children With Obesity. J Clin Sleep Med 2018; 14:451-458. [PMID: 29458697 DOI: 10.5664/jcsm.6998] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 07/19/2017] [Accepted: 12/18/2017] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES (1) To determine baseline quality of life (QOL) among children with obesity and newly diagnosed moderate-severe sleep-disordered breathing (SDB) and to compare it to the reported QOL of children with obesity or SDB alone and healthy children. (2) To evaluate QOL change after 1 year. METHODS A prospective multicenter cohort study was conducted in children (8-16 years) with obesity, prescribed positive airway pressure (PAP) therapy for moderate-severe SDB. Outcomes included parent-proxy and self-report total and subscale scores on the PedsQL questionnaire (baseline and 1-year). RESULTS Total PedsQL scores were indicative of impaired QOL in 69% of cases based on parent-report and in 62% on self-report. Parents reported significantly lower QOL in our cohort than that reported in other studies for children with obesity or SDB alone or healthy children, on total PedsQL score and on social and psychosocial subscales. PedsQL total scores for participants were significantly higher (mean difference 7.3 ± 15.3, P = .03) than those reported by parents. Parents reported significant improvements in total PedsQL (mean change 7.29 ± 13.73, P = .04) and social functioning (mean change 17.65 ± 24.69, P = .04) scores after 1 year. No significant differences were found by children's self-report or by PAP adherence. CONCLUSIONS QOL of children with obesity and SDB is lower than in children with obesity or SDB alone or healthy children. One year later, children reported no significant changes in QOL; parents reported significant improvements in total PedsQL and social functioning scores. PAP adherence did not significantly affect QOL change in this population. COMMENTARY A commentary on this article appears in this issue on page 307.
Collapse
Affiliation(s)
- Sherri L Katz
- Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada
| | - Joanna E MacLean
- Stollery Children's Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Nicholas Barrowman
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Lynda Hoey
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Linda Horwood
- Montreal Children's Hospital, McGill University Health Centre, Montreal, Quebec, Canada
| | - Glenda N Bendiak
- Alberta Children's Hospital, University of Calgary, Calgary, Alberta, Canada
| | - Valerie G Kirk
- Alberta Children's Hospital, University of Calgary, Calgary, Alberta, Canada
| | - Stasia Hadjiyannakis
- Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, Canada
| | - Laurent Legault
- Montreal Children's Hospital, McGill University Health Centre, Montreal, Quebec, Canada
| | - Bethany J Foster
- Montreal Children's Hospital, McGill University Health Centre, Montreal, Quebec, Canada
| | - Evelyn Constantin
- Montreal Children's Hospital, McGill University Health Centre, Montreal, Quebec, Canada
| |
Collapse
|
8
|
Castro-Codesal ML, Dehaan K, Featherstone R, Bedi PK, Martinez Carrasco C, Katz SL, Chan EY, Bendiak GN, Almeida FR, Olmstead DL, Young R, Woolf V, Waters KA, Sullivan C, Hartling L, MacLean JE. Long-term non-invasive ventilation therapies in children: A scoping review. Sleep Med Rev 2018; 37:148-158. [DOI: 10.1016/j.smrv.2017.02.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 11/16/2016] [Accepted: 02/22/2017] [Indexed: 01/20/2023]
|
9
|
Bendiak GN, Mateos-Corral D, Sallam A, Atenafu EG, Kirby M, Odame I, Bikangaga P, Subbarao P, Grasemann H. Association of wheeze with lung function decline in children with sickle cell disease. Eur Respir J 2017; 50:50/5/1602433. [PMID: 29191949 DOI: 10.1183/13993003.02433-2016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 06/07/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Glenda N Bendiak
- Section of Respiratory Medicine, Dept of Pediatrics, Alberta Children's Hospital, Calgary, AB, Canada
| | - Dimas Mateos-Corral
- Division of Pediatric Respiratory Medicine, Dept of Pediatrics, IWK Health Centre, Halifax, NS, Canada
| | - Anwar Sallam
- Division of Respiratory Medicine, Dept of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Eshetu G Atenafu
- Biostatistics Dept, University Health Network, Toronto, ON, Canada
| | - Melanie Kirby
- Division of Hematology and Oncology, Dept of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Isaac Odame
- Division of Hematology and Oncology, Dept of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Peter Bikangaga
- Division of Respiratory Medicine, Dept of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada
| | - Padmaja Subbarao
- Division of Respiratory Medicine, Dept of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada.,Program in Physiology and Experimental Medicine, SickKids Research Institute, The Hospital for Sick Children, and University of Toronto, Toronto, ON, Canada
| | - Hartmut Grasemann
- Division of Respiratory Medicine, Dept of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada .,Program in Physiology and Experimental Medicine, SickKids Research Institute, The Hospital for Sick Children, and University of Toronto, Toronto, ON, Canada
| |
Collapse
|
10
|
Katz SL, MacLean JE, Hoey L, Horwood L, Barrowman N, Foster B, Hadjiyannakis S, Legault L, Bendiak GN, Kirk VG, Constantin E. Insulin Resistance and Hypertension in Obese Youth With Sleep-Disordered Breathing Treated With Positive Airway Pressure: A Prospective Multicenter Study. J Clin Sleep Med 2017; 13:1039-1047. [PMID: 28728620 DOI: 10.5664/jcsm.6718] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 06/12/2017] [Indexed: 01/30/2023]
Abstract
STUDY OBJECTIVES There is evidence that cardiometabolic disease associated with obesity and sleep-disordered breathing (SDB) in adults is present in youth. SDB is often treated with positive airway pressure (PAP) in youth with obesity. Our aims were to determine: (1) the prevalence of cardiometabolic disease and (2) whether PAP improves markers of cardiometabolic disease, in youth with obesity and newly diagnosed moderate-severe SDB. METHODS A prospective multicenter cohort study was conducted in youth (8 to 16 years old) with obesity, prescribed PAP therapy for newly diagnosed moderate-severe SDB. Assessments occurred at baseline and at 6 and 12 months. Outcomes included markers of insulin resistance (change in homeostasis model assessment of insulin resistance (HOMA-IR) at 6 months = primary outcome), hypertension (24-hour ambulatory/blood pressure) and inflammation (high-sensitivity C-reactive protein: hs-CRP). RESULTS Twenty-seven participants were enrolled. Of those with baseline testing available, 10/25 (40%) had HOMA-IR above the 97th percentile, 10/23 (44%) were hypertensive, 16/23 (70%) had loss of nocturnal blood pressure dip and hs-CRP was elevated in 16/27 (64%). There were no significant changes over time in markers of metabolic dysfunction or blood pressure, nor between PAP-adherent and non-adherent subgroups. CONCLUSIONS In youth with obesity and SDB, metabolic dysfunction and hypertension were highly prevalent. There were no statistically significant improvements in cardiometabolic markers 1 year after the prescription of PAP therapy, although clinically relevant improvements were seen in insulin resistance and systolic blood pressure load, important predictors of future risk of cardiovascular disease. Larger, longer-term studies are needed to determine whether PAP improves cardiometabolic outcomes in obese youth. COMMENTARY A commentary on this article appears in this issue on page 1025.
Collapse
Affiliation(s)
- Sherri L Katz
- Children's Hospital of Eastern Ontario/University of Ottawa, Ottawa, Ontario, Canada
| | - Joanna E MacLean
- Stollery Children's Hospital/University of Alberta, Edmonton, Alberta, Canada
| | - Lynda Hoey
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Linda Horwood
- Montreal Children's Hospital/McGill University, Montreal, Quebec, Canada
| | - Nicholas Barrowman
- Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Bethany Foster
- Montreal Children's Hospital/McGill University, Montreal, Quebec, Canada
| | - Stasia Hadjiyannakis
- Children's Hospital of Eastern Ontario/University of Ottawa, Ottawa, Ontario, Canada
| | - Laurent Legault
- Montreal Children's Hospital/McGill University, Montreal, Quebec, Canada
| | - Glenda N Bendiak
- Alberta Children's Hospital/ University of Calgary, Calgary, Alberta, Canada
| | - Valerie G Kirk
- Alberta Children's Hospital/ University of Calgary, Calgary, Alberta, Canada
| | - Evelyn Constantin
- Montreal Children's Hospital/McGill University, Montreal, Quebec, Canada
| |
Collapse
|
11
|
Castro Codesal ML, Dehaan K, Featherstone R, Bedi P, Martinez Carrasco C, Katz SL, Chan EY, Bendiak GN, Almeida F, Olmstead D, Young R, Waters K, Sullivan C, Hartlin L, MacLean JE. 0886 LONG-TERM NON-INVASIVE VENTILATION THERAPIES IN CHILDREN: A SCOPING REVIEW. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.885] [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: 11/13/2022] Open
|
12
|
Castro Codesal ML, Featherstone R, Martinez Carrasco C, Katz SL, Chan EY, Bendiak GN, Almeida FR, Young R, Olmstead D, Waters KA, Sullivan C, Woolf V, Hartling L, MacLean JE. Long-term non-invasive ventilation therapies in children: a scoping review protocol. BMJ Open 2015; 5:e008697. [PMID: 26270951 PMCID: PMC4538256 DOI: 10.1136/bmjopen-2015-008697] [Citation(s) in RCA: 6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Non-invasive ventilation (NIV) in children has become an increasingly common modality of breathing support where pressure support is delivered through a mask interface or less commonly through other non-invasive interfaces. At this time, NIV is considered a first-line option for ventilatory support of chronic respiratory insufficiency associated with a range of respiratory and sleep disorders. Previous reviews on the effectiveness, complications and adherence to NIV treatment have lacked systematic methods. The purpose of this scoping review is to provide an overview of the evidence for the use of long-term NIV in children. METHODS AND ANALYSIS We will use previously established scoping methodology. Ten electronic databases will be searched to identify studies in children using NIV for longer than 3 months outside an intensive care setting. Grey literature search will include conference proceedings, thesis and dissertations, unpublished trials, reports from regulatory agencies and manufacturers. Two reviewers will independently screen titles and abstracts for inclusion, followed by full-text screening of potentially relevant articles to determine final inclusion. Data synthesis will be performed at three levels: (1) an analysis of the number, publication type, publication year, and country of publication of the studies; (2) a summary of the study designs, outcomes measures used; (3) a thematic analysis of included studies by subgroups. ETHICS AND DISSEMINATION This study will provide a wide and rigorous overview of the evidence on the use of long-term NIV in children and provide critical information for healthcare professionals and policymakers to better care for this group of children. We will disseminate our findings through conference proceedings and publications, and evaluate the results for further systematic reviews and meta-analyses.
Collapse
Affiliation(s)
- Maria L Castro Codesal
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
- Stollery Children's Hospital, Edmonton, Alberta, Canada
| | - Robin Featherstone
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
- Alberta Research Centre for Health Evidence, University of Alberta, Edmonton, Alberta, Canada
| | | | - Sherri L Katz
- Department of Pediatrics, University of Ottawa and Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Elaine Y Chan
- Department of Respiratory Medicine, Great Ormond Street Hospital for Children, London, UK
| | - Glenda N Bendiak
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
| | - Fernanda R Almeida
- Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada
| | | | | | - Karen A Waters
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Collin Sullivan
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | | | - Lisa Hartling
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
- Alberta Research Centre for Health Evidence, University of Alberta, Edmonton, Alberta, Canada
| | - Joanna E MacLean
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
- Stollery Children's Hospital, Edmonton, Alberta, Canada
| |
Collapse
|
13
|
Abstract
Waitlist mortality continues to be a limiting factor for all solid-organ transplant programs. Strategies that could improve this situation should be considered. We report the first ABO-incompatible lung transplantation in an infant. The recipient infant was ABO blood group A1 and the donor group B. The recipient was diagnosed with surfactant protein B deficiency, which is a fatal condition and lung transplantation is the only definitive therapy. At 32 days of age, a bilateral lung transplantation from a donation after cardiac death (DCD) donor was performed. Intraoperative plasma exchange was the only preparatory procedure performed. No further interventions were required as the recipient isohemagglutinins were negative before transplant and have remained negative to date. At 6 months posttransplant, the recipient is at home, thriving, with normal development. This outcome suggests that ABO-incompatible lung transplantation is feasible in infants, providing another option to offer life-saving lung transplantation in this age range.
Collapse
Affiliation(s)
- H Grasemann
- Department of Pediatrics, Transplant Center, Hospital for Sick Children, Toronto, ON, Canada
| | | | | | | | | | | | | |
Collapse
|
14
|
Radhakrishnan DK, Bendiak GN, Mateos-Corral D, Al-Saleh S, Bhattacharjee R, Kirby-Allen M, Grasemann H. Lower airway nitric oxide is increased in children with sickle cell disease. J Pediatr 2012; 160:93-7. [PMID: 21868036 DOI: 10.1016/j.jpeds.2011.06.048] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [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: 01/28/2011] [Revised: 05/16/2011] [Accepted: 06/29/2011] [Indexed: 02/03/2023]
Abstract
OBJECTIVES To determine alveolar and airways nitric oxide (NO) levels in children with sickle cell disease (SCD). STUDY DESIGN Multiple flows fractional exhaled NO (FE(NO)), bronchial NO flux (J'aw(NO)), and alveolar NO concentration (Ca(NO)) were determined prospectively in 16 non-atopic children with SCD in a tertiary ambulatory clinic and compared with those in 10 children with primary ciliary dyskinesia and 22 healthy control subjects. Differences in FE(NO), J'aw(NO), and Ca(NO) were compared with mixed model analysis and Mann-Whitney tests. RESULTS Children with SCD had reference range FE(NO) at 50 mL/sec, but FE(NO) was elevated across all flows compared with healthy control subjects (mean difference=2.10±0.91 parts per billion, P=.03). Subjects with SCD had increased J'aw(NO) (1177±533 picoliters per second versus 833±343 picolitres per second, P=.03), and Ca(NO) was no different from control subjects. In contrast, children with primary ciliary dyskinesia had decreased FE(NO) (mean difference=3.36±1.24 parts per billion, P<.01) and J'aw(NO) (507±259 picoliters per second versus 833±343 picoliters per second, P<.01). CONCLUSIONS Lower airways NO is increased in children with SCD. Elevation of J'aw(NO) may represent dysregulation of NO metabolism or subclinical airways inflammation.
Collapse
|
15
|
Bendiak GN, Kritzinger F, Dipchand AI, Ng VL, Solomon M, Grasemann H. Flow-independent exhaled nitric oxide parameters in pediatric lung and cardiac transplant recipients. Transplantation 2011; 91:e75-7. [PMID: 21540720 DOI: 10.1097/tp.0b013e31821694cf] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
16
|
Abstract
Pseudomonas aeruginosa continues to be the most common pathogen in cystic fibrosis (CF) lung disease, and chronic infection with mucoid strains is associated with an accelerated decline in lung function. Although multiple factors can potentially explain the susceptibility of CF airways to this organism, their individual relevance is still largely unclear. Prevention of infection remains an important task, and hygiene measures have been successful in reducing cross-infection, but the universal presence of the organism creates an ongoing challenge, and vaccination strategies have not been highly successful to date. Over the last decade treatment strategies have shifted from controlling chronic infection to attempting to eradicate P. aeruginosa in the early stages of infection. Multiple strategies have been shown to be efficacious, but the optimal form and duration of therapy have yet to be defined. Inhaled antibiotics are a key component of maintenance therapy for chronic infection, and the spectrum of available compounds is rapidly expanding. Pulmonary exacerbations can be reduced with this strategy but usually require intravenous antibiotic therapy once they occur. Nonantibiotic approaches to address P. aeruginosa infection are currently being developed and may expand the therapeutic repertoire in the future.
Collapse
Affiliation(s)
- Glenda N Bendiak
- Department of Pediatrics, Division of Respiratory Medicine, The Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada
| | | |
Collapse
|
17
|
Brennan JD, Flora KK, Bendiak GN, Baker GA, Kane MA, Pandey S, Bright FV. Probing the Origins of Spectroscopic Responses to Analyte-Induced Conformational Changes in Fluorescently-Labeled Cod III Parvalbumin. J Phys Chem B 2000. [DOI: 10.1021/jp002244b] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|