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Body posture as a factor determining sleep quality in patients using non-invasive ventilation.

Daniel Alfaiate^1,2, Alexandre Pereira³, Patrícia Guerra⁴

¹Instituto Politécnico de Castelo Branco Health School, Castelo Branco, Portugal. dadalfaiate@gmail.com.

Sleep & Breathing = Schlaf & Atmung

|March 27, 2023

Summary

Sleeping in a non-supine position improves sleep quality for obstructive sleep apnea (OSA) patients. Avoiding the supine position reduces respiratory events and sleep fragmentation, potentially improving CPAP adherence.

Keywords:

Compliance Noninvasive ventilation Posture Sleep

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Area of Science:

Sleep Medicine
Respiratory Physiology

Background:

Sleep quality is vital for homeostasis, with slow-wave sleep (SWS) and REM sleep as key indicators.
Obstructive sleep apnea (OSA) patients often experience exacerbated respiratory events in the supine position, impacting ventilation therapy effectiveness.

Purpose of the Study:

To investigate the relationship between body posture and polysomnographic data in OSA patients.
To assess the correlation between body posture, sleep quality, and continuous positive airway pressure (CPAP) adherence.

Main Methods:

Retrospective analysis of polysomnography data from OSA patients (2015-2019).
Collection of sociodemographic, polysomnographic, and CPAP therapy variables.

Main Results:

Patients with OSA showed lower residual apnea-hypopnea index (AHIr) and arousal index in non-supine positions (p<0.05).
Total sleep time in SWS and REM sleep was significantly greater in non-supine positions (p<0.05).

Conclusions:

The supine position significantly impairs sleep quality in OSA patients by increasing respiratory events and sleep fragmentation.
Differences in AHIr between supine and non-supine positions may negatively affect CPAP adherence.