| Oximetry, heart rate variability, and the diagnosis of mild-to-moderate acute mountain sickness. | |
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MedLine Citation:
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PMID: 19641462 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The clinical evaluation of acute mountain sickness (AMS) is often performed in remote settings with minimal equipment. The purpose of this study was to examine the utility of heart rate variability and other cardiovascular parameters in a high-altitude clinical setting. Forty-one participants were recruited from the patient population of the clinic, and from festivalgoers [those who attended the Janai Purnima festival held at Lake Gosainkunda (4380 m) in Langtang, Nepal] in the vicinity of the clinic. Twenty-one participants were diagnosed with AMS; remaining participants were free from altitude illness. Heart rate variability (both time and frequency domain measures), arterial oxygen saturation (SpO2), blood pressure and Lake Louise Score were evaluated in all the participants. Oxygen saturation and diastolic blood pressure were negatively and positively correlated with Lake Louise Score, respectively. Receiver operating characteristic analysis indicated that an SpO2 of 86% or greater was associated with a very low likelihood of AMS at this altitude. No heart rate variability parameters were different in the AMS group as compared with the control group. In conclusion, in patients with SpO2 of 86% or more at 4380 m or higher, the likelihood of AMS is low. Diastolic blood pressure correlated with AMS severity, whereas heart rate variability was not useful in the diagnosis of AMS. |
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Authors:
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Michael S Koehle; Jordan A Guenette; Darren E R Warburton |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: European journal of emergency medicine : official journal of the European Society for Emergency Medicine Volume: 17 ISSN: 1473-5695 ISO Abbreviation: Eur J Emerg Med Publication Date: 2010 Apr |
Date Detail:
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Created Date: 2010-10-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9442482 Medline TA: Eur J Emerg Med Country: England |
Other Details:
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Languages: eng Pagination: 119-22 Citation Subset: IM |
Affiliation:
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School of Human Kinetics, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada. koehle@interchange.ubc.ca |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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| Grant Support | |
ID/Acronym/Agency:
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//Canadian Institutes of Health Research |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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