Document Detail


Capabilities of supine exercise electrocardiography versus exercise radionuclide angiography in predicting coronary events.
MedLine Citation:
PMID:  2000789     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The ability of supine exercise electrocardiography and exercise radionuclide angiography to predict time to subsequent cardiac events (cardiac death, nonfatal myocardial infarction or late coronary bypass grafting or angioplasty) were compared in 265 patients with normal resting electrocardiograms who were not taking digoxin. All patients had undergone coronary catheterization and were initially treated medically. Follow-up study was performed at a median of 51 months. Separate logistic regression models, which had been previously developed to predict 3-vessel or left main coronary artery disease (CAD), were compared using a Cox regression analysis to predict time to a subsequent cardiac event. The exercise electrocardiography model, consisting of the magnitude of ST depression, exercise heart rate and patient gender, was a powerful predictor (chi-square = 30.8, p less than 0.0001) of subsequent events. The exercise radionuclide angiography model, which included the exercise response of the pressure-volume ratio in addition to the exercise electrocardiography variables, had similar prognostic power (chi-square = 31.8, p less than 0.0001). In a separate analysis considering only cardiac death and nonfatal myocardial infarction, the exercise electrocardiography model remained a significant predictor of events (chi-square = 12.2, p less than 0.001). None of the radionuclide angiography variables added significantly to the prognostic power of the exercise electrocardiography model. Thus, in patients with a normal resting electrocardiogram who are not taking digoxin, the supine exercise electrocardiography model that predicts 3-vessel or left main CAD also predicts future cardiac events. Exercise radionuclide angiography does not provide any additional prognostic information in such patients.
Authors:
R D Simari; T D Miller; A R Zinsmeister; R J Gibbons
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The American journal of cardiology     Volume:  67     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1991 Mar 
Date Detail:
Created Date:  1991-04-10     Completed Date:  1991-04-10     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  573-7     Citation Subset:  AIM; IM    
Affiliation:
Mayo Clinic and Foundation, Rochester, Minnesota 55905.
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MeSH Terms
Descriptor/Qualifier:
Coronary Disease / diagnosis*
Electrocardiography*
Exercise Test / methods*
Female
Humans
Male
Middle Aged
Predictive Value of Tests
Radionuclide Angiography*
Supination / physiology

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


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