This is the reason why the rate responsive pacemaker by one sensor is not suitable for the physiologic demand completely.
窦房结的这种特性可能是单传感器频率应答性起搏器不能完全符合生理需要的基本原因。
Objective: To observe the clinical effect and evaluate the exercise tolerance in sick sinus symptom patients with angina pectoris after implanting rate responsive pacemaker (DDDR).
目的:观察合并冠心病心绞痛的病态窦房结综合征患者置入频率应答起搏器(DDDR)的临床疗效及运动耐量评价。
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