Chronic Mountain Sickness
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Chronic Mountain Sickness (CMS) is defined as elevated hematocrit (number of red blood cells) and Hypoxemia (lowered blood O2 saturation). Hematocrit > 65% and Arterial O2 saturation < 85%[1]. CMS may cause issues due to the increased blood viscosity.
CMS is believed to be caused by the combination of high altitude and the insufficiency of other systems (heart/lungs), leading to an excessive compensation of the hematocrit[2]. Many patients with hematocrit between 55% and 70% function normally, only seeking medical help when other factors lead to a decreased O2 saturation[3].
References
- ↑ http://en.wikipedia.org/wiki/Chronic_mountain_sickness
- ↑ http://zuniv.net/pub/CMSchronichypoxia.pdf Chronic Mountain Sickness: The Reaction of Physical Disorders to Chronic Hypoxia
- ↑ http://www.altitudeclinic.com/thsart.htm Triple Hypoxia Syndrome
