Document Detail

Sympathetic outflow to muscles during vasovagal syncope.
MedLine Citation:
PMID:  7169498     Owner:  NLM     Status:  MEDLINE    
Sympathetic vasoconstrictor impulses were recorded with microelectrodes in peroneal muscle nerve fascicles during vasovagal syncope in two subjects. After a preceding period of increased nerve activity, onset of syncope was associated with bradycardia and sudden cessation of sympathetic outflow. The findings provide direct evidence that neurally mediated muscular vasodilatation occurring during syncope is due to inhibition of vasoconstrictor impulses.
B G Wallin; G Sundlöf
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of the autonomic nervous system     Volume:  6     ISSN:  0165-1838     ISO Abbreviation:  J. Auton. Nerv. Syst.     Publication Date:  1982 Nov 
Date Detail:
Created Date:  1983-06-10     Completed Date:  1983-06-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8003419     Medline TA:  J Auton Nerv Syst     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  287-91     Citation Subset:  IM    
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MeSH Terms
Blood Pressure
Heart Rate
Hypertension / physiopathology*
Muscles / innervation*
Reflex / physiology
Syncope / physiopathology*
Vasomotor System / physiopathology*

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