室上性心动过速是主一冠状动脉转流术(CABG)后经常发生的并发症,曾采取多种药理学方法试图防止室上性心动过速的发生。许多作者曾指出单用盐酸心得安或联合用洋地黄制剂对防止这类心律失常是有效的。异搏定是钙通道阻滞剂,有报道它能成功地防止阵发性室上性心动过速的发生,有助于心脏电转复后维持窦性心律。本文作者指出,在 CABG 24小时后开始服用异搏定对降低室上性心动过速的发生率有效。 Supraventricular tachycardia is a common complication after primary coronary artery bypass surgery (CABG). Various pharmacological approaches have been taken to prevent the occurrence of supraventricular tachycardia. Many authors have pointed out that propranolol alone or in combination with digitalis is effective in preventing such arrhythmias. Verapamil is a calcium channel blocker, it has been reported that it can successfully prevent the occurrence of paroxysmal supraventricular tachycardia, contribute to the maintenance of sinus rhythm after cardiac electrical recovery. The authors point out that starting therapy with verapamil 24 hours after CABG is effective in reducing the incidence of supraventricular tachycardia.