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https://hdl.handle.net/2440/129698
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Type: | Journal article |
Title: | Increased platelet aggregation in children and adolescents with sleep disordered breathing |
Author: | Kontos, A. Willoughby, S. Lushington, K. Martin, J. Wabnitz, D. Dorrian, J. Kennedy, D. |
Citation: | American Journal of Respiratory and Critical Care Medicine, 2020; 202(11):1560-1566 |
Publisher: | American Thoracic Society |
Issue Date: | 2020 |
ISSN: | 1073-449X 1535-4970 |
Statement of Responsibility: | Anna Kontos, Scott Willoughby, Kurt Lushington, James Martin, David Wabnitz, Jill Dorrian, and Declan Kennedy |
Abstract: | Rationale: Sleep-disordered breathing (SDB) is associated with increased vascular resistance in children and adults. Persistent increased vascular resistance damages vascular endothelial cells—a marker of which is increased platelet activation. Objectives: This study compared whole-blood impedance platelet aggregation in children with clinically diagnosed SDB warranting adenotonsillectomy and healthy control subjects. Methods: Thirty children who had SDB warranting intervention clinically diagnosed by experienced pediatric otolaryngologists were recruited from adenotonsillectomy waitlists, and 20 healthy children from the community underwent overnight polysomnography to determine SDB severity (obstructive apnea–hypopnea index). Snoring frequency was collected from parents. In the morning, a fasting blood sample was taken, and whole-blood platelet aggregation was measured. Measurements and Main Results: Children with SDB exhibited increased platelet aggregation to TRAP (thrombin receptor-activating peptide) (children with SDB = 114.8 aggregation units [AU] vs. control subjects = 98.0 AU; P < 0.05) and COL antibody (96.7 vs. 82.2 AU; P < 0.05) and an increased trend in ADP antibody (82.3 vs. 69.2 AU; P < 0.07) but not aspirin dialuminate (82.1 vs. 79.5 AU; P > 0.05). No significant association was observed between either the obstructive apnea–hypopnea index and any aggregation parameter, but parental report of snoring was positively associated with TRAP aggregation (Kendall’s τ-c = 0.23; P < 0.05). Conclusions: The finding of increased platelet aggregation is consistent with endothelial damage. This suggests that the profile of cardiovascular changes noted in adults with SDB may also occur in children with SDB. |
Keywords: | Sleep-disordered breathing; snoring; platelet aggregation; endothelial damage; children |
Rights: | Copyright © 2020 by the American Thoracic Society |
DOI: | 10.1164/rccm.201911-2229OC |
Grant ID: | http://purl.org/au-research/grants/nhmrc/453637 |
Published version: | http://dx.doi.org/10.1164/rccm.201911-2229oc |
Appears in Collections: | Aurora harvest 8 Medicine publications |
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