Document Detail


Quantitation of anterior descending vs. circumflex venous drainage in the canine great cardiac vein and coronary sinus.
MedLine Citation:
PMID:  623318     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The fractions of left anterior descending (LAD) and circumflex (LC) inflow drainage into the canine great cardiac vein (GCV) and coronary sinus (CS) have been quantitated by use of a right heart bypass preparation in which GCV outflow was isolated from the remainder of CS outflow. Following direct LAD injection of indocyanine green dye (ICG), 63 +/- 8% (SD) of the total amount of dye recovered appeared in GCV outflow and the remainder in CS outflow. CS recovery of ICG was decreased appreciably by ligation of epicardial venous connections between the LAD and LC beds, but was not affected by selective reductions of LAD or LC inflow. Only 3 +/- 3% of ICG injected into the LC was recovered in GVC outflow under basal conditions, and these low values were not affected measurably by selective reductions of LAD or LC inflow. CS drainage of LAD inflow could be augmented by selective increments of GCV pressure exceeding 7-10 mmHg. Increments of LC drainage in GCV outflow required CS pressures that exceeded GCV pressures by greater than 10 mmHg.
Authors:
H K Nakazawa; D L Roberts; F J Klocke
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The American journal of physiology     Volume:  234     ISSN:  0002-9513     ISO Abbreviation:  Am. J. Physiol.     Publication Date:  1978 Feb 
Date Detail:
Created Date:  1978-03-29     Completed Date:  1978-03-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370511     Medline TA:  Am J Physiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  H163-6     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Pressure
Coronary Circulation*
Coronary Vessels
Dogs
Indocyanine Green / diagnostic use
Chemical
Reg. No./Substance:
3599-32-4/Indocyanine Green

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


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