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O059 A study in Physiological Activation Responses to Posture Shifts in Sleep and The Impact of Supine Avoidance Alarms

INTRODUCTION: This study assessed the frequency and duration of arousal responses associated with posture shifts during sleep and the time taken to resume sleep following posture shifts with versus without a supine-avoidance alarm. METHOD: Sleep and posture shift outcomes during a baseline in-home s...

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Detalles Bibliográficos
Autores principales: Rahimi, M, Catcheside, P
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10109384/
http://dx.doi.org/10.1093/sleepadvances/zpac029.058
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author Rahimi, M
Catcheside, P
author_facet Rahimi, M
Catcheside, P
author_sort Rahimi, M
collection PubMed
description INTRODUCTION: This study assessed the frequency and duration of arousal responses associated with posture shifts during sleep and the time taken to resume sleep following posture shifts with versus without a supine-avoidance alarm. METHOD: Sleep and posture shift outcomes during a baseline in-home sleep study (Embletta MPR plus an inactive supine-avoidance alarm device) and subsequent sleep study after 6-8 weeks of supine-avoidance treatment were examined in 66 patients with supine-predominant OSA. A technician blinded to supine-treatment data scored each sleep study, including arousal responses (3-15 and ≥15-sec EEG changes). All posture shifts lasting >5 sec were identified from sleep study and supine-alarm device posture recordings. All sustained (≥30 sec) posture shifts commencing from established sleep during baseline and supine-avoidance nights were assessed for arousal responses (within -30 to +3 sec of each posture shift) and the time taken to resume sleep following each posture shift. RESULTS: The study population was 62.1% males with a mean±SD age 52.8±11.9 years, BMI 31.9.4±7.8 kg/m², AHI 18.0±9.9 /hr (supine AHI=40.2±38.8 /h). From a total of 418 (baseline) vs 283 (supine-avoidance) sustained posture shifts (median [IQR] 6[3-10] vs 6[3-9] per patient), the majority [342/418 vs 244/283; 91[75-100] vs 100[84-100]%) were associated with an arousal, followed by 0.5 [0.0 to 1.0] min before sleep resumed, with no difference with versus without the supine-alarm. CONCLUSION: Posture shifts from sleep are mostly associated with brief arousal prior to any supine-avoidance alarm, after which a supine avoidance alarm effectively discourages supine positioning with minimal disturbance to the resumption of sleep.
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spelling pubmed-101093842023-05-15 O059 A study in Physiological Activation Responses to Posture Shifts in Sleep and The Impact of Supine Avoidance Alarms Rahimi, M Catcheside, P Sleep Adv ORAL PRESENTATIONS INTRODUCTION: This study assessed the frequency and duration of arousal responses associated with posture shifts during sleep and the time taken to resume sleep following posture shifts with versus without a supine-avoidance alarm. METHOD: Sleep and posture shift outcomes during a baseline in-home sleep study (Embletta MPR plus an inactive supine-avoidance alarm device) and subsequent sleep study after 6-8 weeks of supine-avoidance treatment were examined in 66 patients with supine-predominant OSA. A technician blinded to supine-treatment data scored each sleep study, including arousal responses (3-15 and ≥15-sec EEG changes). All posture shifts lasting >5 sec were identified from sleep study and supine-alarm device posture recordings. All sustained (≥30 sec) posture shifts commencing from established sleep during baseline and supine-avoidance nights were assessed for arousal responses (within -30 to +3 sec of each posture shift) and the time taken to resume sleep following each posture shift. RESULTS: The study population was 62.1% males with a mean±SD age 52.8±11.9 years, BMI 31.9.4±7.8 kg/m², AHI 18.0±9.9 /hr (supine AHI=40.2±38.8 /h). From a total of 418 (baseline) vs 283 (supine-avoidance) sustained posture shifts (median [IQR] 6[3-10] vs 6[3-9] per patient), the majority [342/418 vs 244/283; 91[75-100] vs 100[84-100]%) were associated with an arousal, followed by 0.5 [0.0 to 1.0] min before sleep resumed, with no difference with versus without the supine-alarm. CONCLUSION: Posture shifts from sleep are mostly associated with brief arousal prior to any supine-avoidance alarm, after which a supine avoidance alarm effectively discourages supine positioning with minimal disturbance to the resumption of sleep. Oxford University Press 2022-11-09 /pmc/articles/PMC10109384/ http://dx.doi.org/10.1093/sleepadvances/zpac029.058 Text en © The Author(s) 2022. Published by Oxford University Press on behalf of Sleep Research Society. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle ORAL PRESENTATIONS
Rahimi, M
Catcheside, P
O059 A study in Physiological Activation Responses to Posture Shifts in Sleep and The Impact of Supine Avoidance Alarms
title O059 A study in Physiological Activation Responses to Posture Shifts in Sleep and The Impact of Supine Avoidance Alarms
title_full O059 A study in Physiological Activation Responses to Posture Shifts in Sleep and The Impact of Supine Avoidance Alarms
title_fullStr O059 A study in Physiological Activation Responses to Posture Shifts in Sleep and The Impact of Supine Avoidance Alarms
title_full_unstemmed O059 A study in Physiological Activation Responses to Posture Shifts in Sleep and The Impact of Supine Avoidance Alarms
title_short O059 A study in Physiological Activation Responses to Posture Shifts in Sleep and The Impact of Supine Avoidance Alarms
title_sort o059 a study in physiological activation responses to posture shifts in sleep and the impact of supine avoidance alarms
topic ORAL PRESENTATIONS
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10109384/
http://dx.doi.org/10.1093/sleepadvances/zpac029.058
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