Document Detail


A causal relationship between fluctuations in thermoregulatory skin perfusion and respiratory movements in man.
MedLine Citation:
PMID:  7560759     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The relationship between regular respiration with normal tidal volume and spontaneous fluctuations in blood flow through skin arteriovenous anastomoses (AVAs) was investigated. Laser Doppler measurements from skin areas known to contain arteriovenous anastomoses, ultrasound Doppler measurements from the radial artery and respiratory movements were recorded simultaneously in 7 supine human subjects in a thermoneutral environment. The phase relationship between respiration and the onset of sudden arteriovenous anastomoses vasoconstrictions was calculated in each subject. A few seconds before a vasoconstriction, there was a clear tendency towards synchrony in the respiration recordings, indicating that some respiration-phase-dependent event precedes the vasoconstrictions. Since arteriovenous anastomoses constrictions are accompanied by specific changes in heart rate and blood pressure, our findings link respiration to low-frequency heart rate and blood-pressure variability in humans.
Authors:
M Eriksen; K Lossius
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the autonomic nervous system     Volume:  53     ISSN:  0165-1838     ISO Abbreviation:  J. Auton. Nerv. Syst.     Publication Date:  1995 Jun 
Date Detail:
Created Date:  1995-11-20     Completed Date:  1995-11-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8003419     Medline TA:  J Auton Nerv Syst     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  223-9     Citation Subset:  IM    
Affiliation:
University of Oslo, Department of Physiology, Norway.
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MeSH Terms
Descriptor/Qualifier:
Adult
Arteriovenous Anastomosis / physiology
Baroreflex / physiology
Blood Pressure / physiology
Body Temperature Regulation / physiology*
Female
Heart Rate / physiology
Humans
Laser-Doppler Flowmetry
Male
Middle Aged
Regional Blood Flow / physiology
Respiratory Mechanics / physiology*
Signal Processing, Computer-Assisted
Skin / blood supply*
Skin Physiological Phenomena*
Vasoconstriction / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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