4.6 Article

Sleep positions in children with Down syndrome and obstructive sleep apnea

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SLEEP MEDICINE
卷 81, 期 -, 页码 463-465

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ELSEVIER
DOI: 10.1016/j.sleep.2021.03.018

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Obstructive sleep apnea; Down syndrome; Trisomy twenty-one; Sleep; Position

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An analysis of sleep positions in children with both Down syndrome and obstructive sleep apnea found a preference for lateral sleeping positions, potentially optimizing airflow but not correlated with the severity of OSA.
Objectives: To assess sleep positions in children with both Down syndrome (DS) and obstructive sleep apnea (OSA) and determine if there is a preferred sleep position by severity of apnea. Methods: A single-center retrospective review of patients with both DS and OSA was performed. Caregivers reported sleep position utilized greater than 50% of observed sleep time. Accuracy of this report was confirmed through review of hypnograms from polysomnography studies. Results: Eighty-two patients met inclusion criteria. Median body mass index (BMI) was 26.6 and 56% of patients had a prior tonsillectomy and/or adenoidectomy. The mean obstructive AHI (OAHI) was 25.33 with 90.4% having severe OSA, 9.6% having moderate OSA, and no patients having mild OSA. Reported sleep positions were skewed towards lateral/decubitus (82.9%) compared to prone (11.0%) and supine (6.1%). This was consistent with hypnogram data where 71% of total sleep time in lateral/decubitus positions compared to prone (13%) and supine (6%). The median changes in sleep position per patient was 5 (IQR: 3-6). Lower BMI (p < 0.001, 95% CI: 0.32-1.13) and tonsillectomy (p < 0.001, 95% CI: 7.7-18.19) were associated with lower OAHI. Sleep position was not associated with age (p = 0.19), sex (p = 0.66), race (p = 0.10), ethnicity (p = 0.68) nor history of tonsillectomy (p = 0.34). Preferred sleep position was not correlated with OAHI (p = 0.78, r = 0.03) or OSA severity (p = 0.72, r = 0.03). Conclusions: This study highlights the possibility that children with DS may have preferential sleep positions that cater to optimized airflow in the context of OSA although further prospective study is needed. (C) 2021 Elsevier B.V. All rights reserved.

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