[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. 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.
Strazhesko
I D
ID
Merkulova
I N
IN
Saveléva
I V
IV
Shvilkin
A V
AV
D000328:Adult; D004562:Electrocardiography / Q000379:methods*; D005080:Exercise Test / Q000009:adverse effects; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000503:physiopathology; D017180:Tachycardia, Ventricular / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D013997:Time Factors
Vliianie nagruzochnogo testa na signal-usrednennuiu EKG u bolńykh infarktom miokarda.