The change of heart rate and S-Tsegment in electrocardiogram were observed.
连续监测心电图，观察心率及S．T段的变化。
Objective To learn the effluence of coronary angiography on multi-slice spiral ct with the change of heart rate.
目的探讨心率变化对多层螺旋ct冠状动脉成像的影响。
Objective to observe the change of heart rate variability after Metoprolol and Felodipine treatment in the elderly patients with hypertension.
目的观察美托洛尔和非洛地平对老年高血压病人降压治疗后心率变异性的改变。
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