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[The analysis of Q-Tc interval changes in treadmill exercise-induced myocardial ischemia]
1Department of Cardiology, Xiangya Hospital, Hunan Medical University, Changsha.
Hunan Yi Ke Da Xue Xue Bao = Hunan Yike Daxue Xuebao = Bulletin of Hunan Medical University
|January 1, 1997
Abstract:
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.