Linked Life Data

2775136

Source:http://linkedlifedata.com/resource/pubmed/id/2775136

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1989-9-27
pubmed:abstractText
We studied nocturnal breathing patterns and symptoms of acute mountain sickness (AMS) during trekking in the Japanese Alps (altitude: 2,760-2,920 m) for 4 d in five subjects susceptible to high-altitude pulmonary edema (HAPE-S-S) and five control volunteers. Breathing patterns were evaluated with the impedance plethysmograph, and symptoms of AMS were evaluated by the environmental symptoms questionnaire-III score for AMS of cerebral type (AMS-C score). In both groups, the percentage of time with periodic breathing significantly increased at high altitude and the percentage in controls was significantly higher than in HAPE-S-S on the second night. In four HAPE-S-S, other disordered breathing patterns, termed "irregular breathing," were observed frequently by night at high altitude. Irregular breathing patterns were characterized by irregularly repeated oscillatory or nonoscillatory clusters of breaths with augmented tidal volume, followed by expiratory pause, apnea, or hypoventilation of various durations. All controls did not show significant changes in AMS-C score, but four HAPE-S-S showed the increase in AMS-C score on the next morning after frequent irregular nocturnal breathing. There was significant correlation between the percentage of time with irregular nocturnal breathing and AMS-C score on the next morning. These results suggest that HAPE-S-S are prone to irregular nocturnal breathing patterns at high altitude, which is associated with the development of AMS, but it was not possible to determine whether these abnormal breathing patterns are a cause or an effect of AMS.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0095-6562
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
786-91
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Irregular nocturnal breathing patterns high altitude in subjects susceptible to high-altitude pulmonary edema (HAPE): a preliminary study.
pubmed:affiliation
Department of Internal Medicine, Shinsu University School of Medicine, Matsumoto, Japan.
pubmed:publicationType
Journal Article