众所周知,室性并行收缩是心室内独立自发起搏点以本身固有频率有规则地发放冲动,因其周围存在着保护性阻滞,而不受主导节律影响的一种心律失常。其心电图特点是:联律间距不等、异位搏动间距长度相等或呈一最大公约数的简单倍数及频发融合波。偶而,并行收缩冲动虽处在心室应激期也不能显示,此现象被认为是异-室交界处存在传出阻滞之故。本文报道一例室性并行收缩呈非 As we all know, ventricular parallel contraction of the ventricular independent spontaneous pacemaker at its own natural frequency regularly issued impulsive, because there is a protective block around, and is not affected by the rhythm of an arrhythmia. The ECG features are: ranging from the joint law, the ectopic beats spacing equal length or a common multiple of the greatest common divisor and frequent fusion. Occasionally, although parallel contraction impulse in ventricular stress phase can not be displayed, this phenomenon is considered different - room junction there is the spread of the block so there. This article reports a case of ventricular contractions were non-parallel