Document Detail


Sinus node potential during cold cardioplegia.
MedLine Citation:
PMID:  6887666     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Epicardial potentials of the sinus node, the right atrium, and the right ventricle were recorded in dogs during cold potassium-induced cardioplegia. We found that the sinus node fibers were more resistant to the cardioplegia than were the other myocardial fibers. When the cardioplegia rendered the atrial muscle inexcitable, the high frequency atrial potential was delayed and then abolished in the sinus node electrogram, and a smooth tracing similar to the action potential of the sinus node cell appeared. These findings should be pertinent for the cardiac surgeon attempting to avoid surgically-induced sinoatrial arrhythmias.
Authors:
A Furuse; Y Kotsuka; K Asano
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Japanese journal of surgery     Volume:  13     ISSN:  0047-1909     ISO Abbreviation:  Jpn J Surg     Publication Date:  1983 Mar 
Date Detail:
Created Date:  1983-10-08     Completed Date:  1983-10-08     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  1302176     Medline TA:  Jpn J Surg     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  146-51     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Action Potentials
Animals
Cardiac Pacing, Artificial
Cold Temperature
Dogs
Female
Heart Arrest, Induced*
Male
Potassium
Sinoatrial Node / physiology*
Chemical
Reg. No./Substance:
7440-09-7/Potassium

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


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