Document Detail


Independent regulation of atrial coronary blood flow by atrial contraction rate in conscious dogs.
MedLine Citation:
PMID:  7192859     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effects of separate increases in atrial and ventricular contraction rates on the distribution of coronary flow within the heart were determined in conscious dogs with chronic heart block. Atrial tachycardia increased atrial blood flow and did not change ventricular blood flow. Ventricular tachycardia increased ventricular blood flow but not atrial blood flow. The results are consistent with the concept of local regulation of coronary perfusion by local myocardial energy turnover. The results also call attention to a potential adverse impact of atrial tachyarrhythmia in patients with underlying coronary ischemia.
Authors:
W A Neill; D Sewell; M Gopal; J Oxendine; L Painter
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Pflügers Archiv : European journal of physiology     Volume:  388     ISSN:  0031-6768     ISO Abbreviation:  Pflugers Arch.     Publication Date:  1980 Nov 
Date Detail:
Created Date:  1981-03-17     Completed Date:  1981-03-17     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0154720     Medline TA:  Pflugers Arch     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  193-5     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Atrial Function
Coronary Circulation*
Dogs
Heart Block
Heart Rate*
Hemodynamics
Myocardial Contraction*

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


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