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The influence of head-of-bed elevation in patients with obstructive sleep apnea
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The influence of head-of-bed elevation in patients with obstructive sleep apnea
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The influence of head-of-bed elevation in patients with obstructive sleep apnea
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Journal Article
The influence of head-of-bed elevation in patients with obstructive sleep apnea
2017
Overview
Purpose
The purpose of this study is to test the effects of a mild degree of head-of-bed elevation (HOBE) (7.5°) on obstructive sleep apnea (OSA) severity and sleep quality.
Methods
OSA patients were recruited from a single sleep clinic (Criciúma, Santa Catarina, Brazil). Following a baseline polysomnography (PSG), all patients underwent a PSG with HOBE (within 2 weeks). In addition, a subset of patients performed a third PSG without HOBE.
Results
Fifty-two patients were included in the study (age 53.2 ± 9.1 years; BMI 29.6 ± 4.8 kg/m
2
, neck circumference 38.9 ± 3.8 cm, and Epworth Sleepiness Scale 15 ± 7). Compared to baseline, HOBE significantly decreased the apnea-hypopnea index (AHI) from 15.7 [11.3–22.5] to 10.7 [6.6–16.5] events/h;
p
< 0.001 and increased minimum oxygen saturation from 83.5 [77.5–87] to 87 [81–90]%;
p
= 0.003. The sleep architecture at baseline and HOBE were similar. However, sleep efficiency increased slightly but significantly with HOBE (87.2 [76.7–90.7] vs 88.8 [81.6–93.3];
p
= 0.005). The AHI obtained at the third PSG without HOBE (
n
= 7) returned to baseline values.
Conclusions
Mild HOBE significantly improves OSA severity without interfering in sleep architecture and therefore is a simple alternative treatment to ameliorate OSA.
Publisher
Springer International Publishing,Springer Nature B.V
Subject
/ Adult
/ Aged
/ Apnea
/ Female
/ Head
/ Humans
/ Insomnia
/ Male
/ Medicine
/ Neck
/ Oxygen
/ Patients
/ Pneumology/Respiratory System
/ Sleep
/ Sleep Apnea, Obstructive - physiopathology
/ Sleep Apnea, Obstructive - therapy
/ Sleep Breathing Physiology and Disorders • Original
/ Sleep Breathing Physiology and Disorders • Original Article
