尖端扭转型室性心动过速（TdP）是一种特殊类型的室性心动过速，极易发生昏厥和抽搐，救治不及时，易转变为室颤而死亡。多数TdP是心室肌复极不一致，引起多环路折返所致。近年文献报道有因触发活动、早期后除极和异位节律点自律性增高而引起者。因发生机理不同，临床治疗措施 TdP is a special type of ventricular tachycardia, prone to fainting and convulsions, treatment is not timely, easily converted to ventricular fibrillation and death. The majority of TdP ventricular repolarization inconsistencies, caused by multiple loop reentry. In recent years, there are reports in the literature due to triggering activity, early depolarization and ectopic rhythm point increased self-discipline caused. Because of the different mechanism of occurrence, clinical treatment measures