Document Detail

Difference between halothane and barbiturate anesthesia in the influence of cerebral ischemia on the vagal baroreflex in dogs.
MedLine Citation:
PMID:  1513075     Owner:  NLM     Status:  MEDLINE    
In halothane-anesthetized dogs, a decrease in baroreflex sensitivity (BRS) of approximately 20% was observed during the reperfusion period following 5-min global cerebral ischemia. When compared with our previous study on animals under pentobarbital anesthesia, the extent of the decrease in BRS was smaller and apparently more severe ischemia was necessary to damage the vagal component of the baroreflex. Substitution of halothane with pentobarbital during the reperfusion period failed to affect either BRS or the ratio of the vagal component. In another group, pre- and post-ischemic measurements of BRS was performed under halothane anesthesia, but the ischemic insult was given under thiopental anesthesia. In these animals, the extent of decrease in BRS (about 50%) was greater than that in animals subjected to ischemia under halothane anesthesia. The present results suggest that the anesthetics used during the ischemic insult may affect the extent of post-ischemic dysfunction of the baroreflex. The vagal component of the baroreflex may be more resistant to ischemia under halothane anesthesia than under barbiturate anesthesia.
J Kurihara; H Tomita; H Kato
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Japanese journal of pharmacology     Volume:  58     ISSN:  0021-5198     ISO Abbreviation:  Jpn. J. Pharmacol.     Publication Date:  1992 Mar 
Date Detail:
Created Date:  1992-09-30     Completed Date:  1992-09-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2983305R     Medline TA:  Jpn J Pharmacol     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  259-67     Citation Subset:  IM    
Department of Pharmacology, Faculty of Pharmaceutical Sciences, Teikyo University, Kanagawa, Japan.
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MeSH Terms
Blood Pressure / drug effects
Brain Ischemia / physiopathology*
Cerebrovascular Circulation / drug effects
Heart Rate / drug effects
Pressoreceptors / drug effects*
Reflex / drug effects*
Reperfusion Injury / physiopathology
Vagus Nerve / drug effects*
Reg. No./Substance:
0/Barbiturates; 151-67-7/Halothane

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

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