Document Detail


Pulmonary shunting by the bronchial artery in the anaesthetized horse.
MedLine Citation:
PMID:  2310556     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In the quietly standing horse the bronchial arterial blood flow is low, 0.1-0.2% of the pulmonary arterial flow. In horses anaesthetized with halothane, the bronchial arterial flow is reduced by a greater fraction than that in the pulmonary artery. Thus the shunting through the bronchial circulation is decreased about 3-fold by anaesthesia, and cannot, therefore, contribute significantly to the increased alveolar-arterial gradient seen in dorsal recumbency. The results indicate bronchial vasoconstriction under anaesthesia.
Authors:
R D Gleed; A Dobson; R P Hackett
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Experimental physiology     Volume:  75     ISSN:  0958-0670     ISO Abbreviation:  Exp. Physiol.     Publication Date:  1990 Jan 
Date Detail:
Created Date:  1990-04-26     Completed Date:  1990-04-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9002940     Medline TA:  Exp Physiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  115-8     Citation Subset:  IM    
Affiliation:
Department of Clinical Science, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853.
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MeSH Terms
Descriptor/Qualifier:
Anesthesia*
Animals
Blood Pressure
Bronchial Arteries / physiology*
Halothane / pharmacology
Horses / physiology*
Ketamine / pharmacology
Perfusion
Pulmonary Artery / physiology*
Pulmonary Circulation*
Supination
Xylazine / pharmacology
Chemical
Reg. No./Substance:
151-67-7/Halothane; 6740-88-1/Ketamine; 7361-61-7/Xylazine

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


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