Impact of exercise test on signal-averaged ECG in patients with myocardial infarction

To examine the impact of exercise test (bicycle ergometry) and exercise-induced transient ischemic changes in ST segment on signal-averaged ECG parameters, the authors studied a homogeneous group including 65 patients (62 males and 3 females) with a 2-3-week history of primary myocardial infarction....

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Bibliographic Details
Published inKardiologiia Vol. 32; no. 11-12; p. 39
Main Authors Strazhesko, I D, Merkulova, I N, Saveléva, I V, Shvilkin, A V
Format Journal Article
LanguageRussian
Published Russia (Federation) 1992
Subjects
Adult
Electrocardiography - methods
Exercise Test - adverse effects
Female
Humans
Male
Middle Aged
Myocardial Infarction - diagnosis
Myocardial Infarction - physiopathology
Tachycardia, Ventricular - diagnosis
Tachycardia, Ventricular - etiology
Tachycardia, Ventricular - physiopathology
Time Factors
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Summary:To examine the impact of exercise test (bicycle ergometry) and exercise-induced transient ischemic changes in ST segment on signal-averaged ECG parameters, the authors studied a homogeneous group including 65 patients (62 males and 3 females) with a 2-3-week history of primary myocardial infarction. The findings showed that induced myocardial ischemia caused no significant changes in signal-averaged ECG and late potentials, exercise might induce late potentials without clear-cut ECG signs of myocardial ischemia. It was also indicated that exercise-labile late potentials were significantly more frequently associated with the development of ventricular arrhythmias than steady late potentials.
ISSN:0022-9040