Document Detail


The effect of beta-adrenergic blockade on infarct size following experimental coronary occlusion.
MedLine Citation:
PMID:  6113828     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of Pindolol on myocardial infarct size was studied in 10 open chest dogs. In each animal a sequential occlusion and reperfusion of 2 medium-sized branches of the left coronary artery was performed in the same heart. After occlusion and reperfusion of the control artery the initial dose of Pindolol (0.25 mg/kg body weight) was administered. Thereafter the test artery was occluded, followed by a maintenance dose of Pindolol (0.3 mg/kg body weight). The drug caused a significant decrease in LVP and LV-dp/dt but no change in heart rate. MVO2 also decreased significantly. Regional myocardial blood flow was measured with the tracer microsphere method. Collateral flow in the perfusion area of the control artery was 11.2 +/- 5.9% and in the area of the test artery 10.0 +/- 4.4% of normal. No change in the endo/epi ratio as a result of treatment was observed. The area of infarction (p-nitroblue tetrazolium-reaction) was divided by the area of perfusion (angiography). Infarct size, expressed as the percentage of the perfusion area, was 48.2 +/- 22.2% in the region of the control artery and 43.0 +/- 23.9% in the region of the test artery. The difference was statistically not significant.
Authors:
K Genth; M Hofmann; M Hofmann; W Schaper
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Basic research in cardiology     Volume:  76     ISSN:  0300-8428     ISO Abbreviation:  Basic Res. Cardiol.     Publication Date:    1981 Mar-Apr
Date Detail:
Created Date:  1981-08-10     Completed Date:  1981-08-10     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0360342     Medline TA:  Basic Res Cardiol     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  144-51     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adrenergic beta-Antagonists / therapeutic use*
Animals
Coronary Circulation
Coronary Disease / physiopathology
Dogs
Female
Hemodynamics / drug effects
Male
Myocardial Infarction / drug therapy*,  pathology
Chemical
Reg. No./Substance:
0/Adrenergic beta-Antagonists

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


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