Document Detail

Ventricular arrhythmias during exercise testing: mechanism, response to coronary bypass surgery and prognostic significance.
MedLine Citation:
PMID:  6610346     Owner:  NLM     Status:  MEDLINE    
To investigate the determinants and prognostic significance of ventricular arrhythmias during exercise testing, 86 patients with such arrhythmias were identified from a consecutive series of 446 patients who underwent treadmill exercise testing and cardiac catheterization. The prevalence of these arrhythmias was 19% in the total group but increased to 30% in the 120 patients with 3-vessel or left main coronary artery disease. Patients with exercise-induced arrhythmias were more likely to have 3-vessel or left main coronary artery disease, a lower resting ejection fraction, greater than or equal to 2 mm of ischemic ST depression and more severe segmental wall motion abnormalities than patients without this finding (p less than 0.05). Repeat exercise testing in 22 patients with exercise-induced arrhythmias after coronary bypass surgery revealed that persistence of these arrhythmias was associated with either severe wall motion abnormalities preoperatively or residual ischemic ST depression during the post-operative exercise testing. At a mean follow-up period of 5.3 years, the presence of exercise-induced ventricular arrhythmias was not associated with increased cardiac mortality in the medically treated patients.
D A Weiner; S R Levine; M D Klein; T J Ryan
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of cardiology     Volume:  53     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1984 Jun 
Date Detail:
Created Date:  1984-07-03     Completed Date:  1984-07-03     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1553-7     Citation Subset:  AIM; IM    
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MeSH Terms
Arrhythmias, Cardiac / etiology,  physiopathology*
Coronary Artery Bypass*
Coronary Disease / mortality,  physiopathology*,  surgery
Exercise Test*
Heart / physiopathology
Heart Ventricles / physiopathology
Middle Aged
Postoperative Period
Stroke Volume

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

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