[The analysis of Q-Tc interval changes in treadmill exercise-induced myocardial ischemia].
The Q-Tc interval before and after the treadmill exercise test in 48 normal subjects and 59 patients with coronary heart disease were compared. The Q-Tc interval was shorter in normal group at immediate moment, 2, 4 and 6 minutes after the exercise than before. In the coronary heart disease group, the Q-Tc interval at the same time points as above was longer after exercise compared to pre-exercise. There was no significant difference of exercise-induced Q-Tc changes in silent and symptomatic myocardial ischemia.
Zhang
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Department of Cardiology, Xiangya Hospital, Hunan Medical University, Changsha.
Ou
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Wen
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D
D000328:Adult; D000368:Aged; D000787:Angina Pectoris / Q000175:diagnosis; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000175:diagnosis*