1. Objective To evaluate the efficacy and safety of intravenous diltiazem and cediland (lanatoside C) for treatment of rapid ventricular rate in atrial fibrillation and flutter.
   目的观察和比较静脉注射地尔硫、毛花甙C控制快速心房颤动（房颤）和心房扑动（房扑）心室率的即时疗效及安全性。
2. Objective To evaluate the efficacy and safety of intravenous fenopraine and lanatoside C for the treatment of rapid ventricular rate in patients with atrial fibrillation and congestive heart failure.
   目的比较静脉应用普罗帕酮与毛花苷丙治疗快速心房颤动(简称房颤)并发充血性心力衰竭(心衰)患者心室率的即时效应及安全性。

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