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Wickramasinghe H, Anholm JD. Sleep and Breathing at High Altitude. Sleep Breath. 1999;3(3):89-102doi: 10.1007/s11325-999-0089-1.
Wickramasinghe, H., & Anholm, J. D. (1999). Sleep and Breathing at High Altitude. Sleep & breathing = Schlaf & Atmung, 3(3), 89-102. https://doi.org/10.1007/s11325-999-0089-1
Wickramasinghe, Himanshu, and Anholm, James D.. "Sleep and Breathing at High Altitude." Sleep & breathing = Schlaf & Atmung vol. 3,3 (1999): 89-102. doi: https://doi.org/10.1007/s11325-999-0089-1
Wickramasinghe H, Anholm JD. Sleep and Breathing at High Altitude. Sleep Breath. 1999;3(3):89-102. doi: 10.1007/s11325-999-0089-1. PMID: 11898114.
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Sleep Breath. 1999;3(3):89-102. doi: 10.1007/s11325-999-0089-1.

Sleep and Breathing at High Altitude.

Sleep & breathing = Schlaf & Atmung

Himanshu Wickramasinghe, James D. Anholm

Affiliations

  1. Pulmonary and Intensive Care Section, Department of Internal Medicine, Loma Linda University School of Medicine, Loma Linda, California.

PMID: 11898114 DOI: 10.1007/s11325-999-0089-1

Abstract

Sleep at high altitude is characterized by poor subjective quality, increased awakenings, frequent brief arousals, marked nocturnal hypoxemia, and periodic breathing. A change in sleep architecture with an increase in light sleep and decreasing slow-wave and REM sleep have been demonstrated. Periodic breathing with central apnea is almost universally seen amongst sojourners to high altitude, although it is far less common in long-standing high altitude dwellers. Hypobaric hypoxia in concert with periodic breathing appears to be the principal cause of sleep disruption at altitude. Increased sleep fragmentation accounts for the poor sleep quality and may account for some of the worsened daytime performance at high altitude. Hypoxic sleep disruption contributes to the symptoms of acute mountain sickness. Hypoxemia at high altitude is most severe during sleep. Acetazolamide improves sleep, AMS symptoms, and hypoxemia at high altitude. Low doses of a short acting benzodiazepine (temazepam) may also be useful in improving sleep in high altitude.

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