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、C控制快速房颤动（房颤）和房扑动（房扑）室率的即时安全性。

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苷丙治快速房颤动(简称房颤)并发充血性力衰竭(衰)患者室率的即时应安全性。