Periodic Breathing and Behavioral Awakenings at High Altitude

Objectives. To study the relationship between nocturnal periodic breathing episodes and behavioral awakenings at high altitude. Methods. Observational study. It is 6-day ascent of 4 healthy subjects from Besisahar (760 meters) to Manang (3540 meters) in Nepal in March 2012. A recording pulse oximete...

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Bibliographic Details
Published in:Sleep disorders 2015-01, Vol.2015 (2015), p.1-6
Main Authors: Harris, N. Stuart, Chang, Yuchiao, Tanner, John B., Shogilev, Daniel J.
Format: Article
Language:English
Subjects:
Emergency medical care
Hypotheses
Hypoxia
Medicine
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Summary:Objectives. To study the relationship between nocturnal periodic breathing episodes and behavioral awakenings at high altitude. Methods. Observational study. It is 6-day ascent of 4 healthy subjects from Besisahar (760 meters) to Manang (3540 meters) in Nepal in March 2012. A recording pulse oximeter was worn by each subject to measure their oxygen saturation and the presence of periodic breathing continuously through the night. An actigraph was simultaneously worn in order to determine nocturnal behavioral awakenings. There were no interventions. Results. 187-hour sleep at high altitude was analyzed, and of this, 145 hours (78%) had at least one PB event. At high altitude, 10.5% (95% CI 6.5–14.6%) of total sleep time was spent in PB while 15 out of 50 awakenings (30%, 95% CI: 18–45%) occurring at high altitudes were associated with PB (P
ISSN:2090-3545
2090-3553
DOI:10.1155/2015/279263