Document Detail


Effects of acute alcohol infusion on duration and dispersion of QT interval in male patients with coronary artery disease and in healthy controls.
MedLine Citation:
PMID:  10486699     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND HYPOTHESIS: Alcohol consumption may have advantageous epidemiologic effects but ethanol also increases the risk of sudden coronary death. Prolongation of QT interval has been reported in chronic alcoholics. Long QT period predisposes to serious arrhythmias, and therefore we studied whether acute alcohol intoxication prolongs repolarization in patients with stable coronary artery disease (CAD). METHODS: The effects of acute ethanol steady-state intravenous infusion (0.72 g/kg body weight within 60 min) on QT interval and QT dispersion, assessed by 12-lead electrocardiograms (ECG), were studied in 22 men with stable CAD and in 10 controls. Heart rate variability was measured by Holter recordings. RESULTS: Mean blood alcohol rose to 26.1 +/- 4.3 mmol/l(1.2 +/- 0.2/1000), and was maintained for 2 h. Heart rate was 56 +/- 7 beats/min before and 54 +/- 8 beats/min during ethanol infusion (NS). The heart rate-adjusted QT interval increased on the average 13-23 ms over the 12-lead ECG (p < 0.005). The QT dispersion remained unaltered. The was no difference in the repolarization response in the patients with CAD compared with the controls. The high- and low-frequency components of heart rate variability remained unaltered. CONCLUSIONS: In middle aged men, regardless of the presence of CAD, moderate amounts of alcohol cause prolongation of ventricular repolarization. Changes in the activity of the autonomic nervous system do not seem to explain the observed phenomenon.
Authors:
J Rossinen; J Sinisalo; J Partanen; M S Nieminen; M Viitasalo
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Clinical cardiology     Volume:  22     ISSN:  0160-9289     ISO Abbreviation:  Clin Cardiol     Publication Date:  1999 Sep 
Date Detail:
Created Date:  1999-10-21     Completed Date:  1999-10-21     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7903272     Medline TA:  Clin Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  591-4     Citation Subset:  IM    
Affiliation:
Department of Medicine, Helsinki University Central Hospital, Finland.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Alcoholic Intoxication / complications,  physiopathology
Angina Pectoris / complications,  physiopathology
Coronary Disease / complications,  physiopathology*
Electrocardiography, Ambulatory
Ethanol / administration & dosage,  adverse effects*,  pharmacology
Heart Rate / drug effects*
Humans
Infusions, Intravenous
Long QT Syndrome / chemically induced*
Male
Middle Aged
Chemical
Reg. No./Substance:
64-17-5/Ethanol

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


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