Document Detail


Cardiovascular response to cooling of limbs determined by noninvasive methods.
MedLine Citation:
PMID:  7190498     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cold, even local exposure to a limited portion of the body, is a stress to man which elevates arterial pressure, thereby intensifying cardiac workload. The sequence of cardiac events following local cooling was noninvasively studied by observation of changes in cardiac interval, left ventricular ejection time, time from A wave of electrocardiogram to the peak of the dD/dt of the carotid pulse wave (which includes pre-ejection period), and amplitude of the pulse wave from a photoelectric cell on the earlobe, along with arterial pressures. Twelve subjects, aged 22--41 years, exposed a hand or foot to cold water for 1 min while seated and while supine (four experiements each). Results indicate that arterial pressure is monotonically elevated throughout the minute of exposure. Cardiac intervals are initially abbreviated, then return towards control. This may include an initial response to the cold, followed by a baroreflex at the heart. Subject posture and limb exposed also affect cardiac responses.
Authors:
M A Frey; R M Siervogel; E A Selm; P Kezdi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  European journal of applied physiology and occupational physiology     Volume:  44     ISSN:  0301-5548     ISO Abbreviation:  Eur J Appl Physiol Occup Physiol     Publication Date:  1980  
Date Detail:
Created Date:  1980-10-21     Completed Date:  1980-10-21     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0410266     Medline TA:  Eur J Appl Physiol Occup Physiol     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  67-75     Citation Subset:  IM; S    
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MeSH Terms
Descriptor/Qualifier:
Adult
Blood Pressure
Cardiac Output
Cold Temperature*
Electrocardiography
Female
Foot
Hand
Hemodynamics*
Humans
Male
Posture
Systole

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


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