Document Detail


Effects of non-depolarizing neuromuscular blocking agents on the cardiac vagus nerve in the guineapig.
MedLine Citation:
PMID:  7437219     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The ability of gallamine, metocurine, pancuronium, tubocurarine and atropine to block the response to postganglionic stimulation of the vagus nerve were measured in isolated, spontaneously beating guineapig atria. From analysis of the results in conjunction with those of earlier assays of concentrations that block effects of preganglionic vagal stimulation, it was concluded that only tubocurarine possessed ganglionic blocking activity. From calculation of the extent of block of muscarinic receptors at drug concentrations which blocked the response to postganglionic vagal stimulation, it was concluded that gallamine and pancuronium have an antivagal action exerted most probably on the postganglionic nerve terminal, and that this action is the most likely explanation of the tachycardia seen clinically with these two drugs.
Authors:
S L Son; D R Waud
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Publication Detail:
Type:  In Vitro; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  British journal of anaesthesia     Volume:  52     ISSN:  0007-0912     ISO Abbreviation:  Br J Anaesth     Publication Date:  1980 Oct 
Date Detail:
Created Date:  1981-02-19     Completed Date:  1981-02-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372541     Medline TA:  Br J Anaesth     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  981-7     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Atropine / pharmacology
Autonomic Fibers, Postganglionic / drug effects
Depression, Chemical
Dose-Response Relationship, Drug
Electric Stimulation
Female
Guinea Pigs
Heart / innervation*
Heart Atria / innervation
Hexamethonium Compounds / pharmacology
Male
Neuromuscular Blocking Agents / pharmacology*
Vagus Nerve / drug effects*
Chemical
Reg. No./Substance:
0/Hexamethonium Compounds; 0/Neuromuscular Blocking Agents; 51-55-8/Atropine

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


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