Document Detail


Acute effects of alcohol on left ventricular dynamics during isometric exercise in normal subjects.
MedLine Citation:
PMID:  6851270     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The aim of this study was to assess whether drinking social amounts of alcohol impairs myocardial contractility in normal humans. To that end, 17 healthy volunteers performed isometric handgrip exercise before and 60 minutes after an intake of 1 g/kg body weight of ethanol within 60 minutes. Left ventricular M-mode echocardiogram, systolic time intervals, and sphygmomanometric arterial blood pressure were recorded before and at the end of 4-min handgrip at 30% of maximum voluntary contraction. The blood ethanol concentration (mean +/- SD) was 24.4 +/- 2.0 mmol/liter. At rest, ethanol increased heart rate (p less than 0.05), and decreased left ventricular end-diastolic diameter (p less than 0.05), end-systolic diameter (p less than 0.01), and circumferential systolic wall stress (p less than 0.05). The indices of left ventricular performance were unchanged except for the maximum circumferential fiber shortening velocity which was increased after ethanol (p less than 0.001). The cardiac response to isometric exercise was similar before and after ethanol except that the handgrip-induced rise in systolic wall stress was smaller postingestion (p less than 0.05). This study does not support the view that drinking small to moderate amounts of alcohol brings about myocardial depression in normal humans. Although preload, afterload, and heart rate were altered by ethanol at rest, myocardial contractility was not impaired even during the afterload stress imposed by isometric exercise.
Authors:
M Kupari; J Heikkilä; R Ylikahri
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical cardiology     Volume:  6     ISSN:  0160-9289     ISO Abbreviation:  Clin Cardiol     Publication Date:  1983 Mar 
Date Detail:
Created Date:  1983-07-29     Completed Date:  1983-07-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7903272     Medline TA:  Clin Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  103-8     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Alcoholic Beverages / adverse effects*,  analysis
Cardiomyopathies / chemically induced*
Echocardiography
Female
Heart Ventricles
Humans
Male
Middle Aged
Myocardial Contraction / drug effects*
Physical Exertion*

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


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