冠状静脉内微电极导管——一种新的电生理标测导管室性心动过速（简称室速）是当今电生理研究的热点和难点之一，特发性室速的发病机制和导管消融治疗中尚有许多问题亟待解决。研究表明：缺血性室速的折返环路主要位于不同深度室壁内，几乎所有的室速折返环的组成均包含有... Coronary vein microelectrode catheter - a new electrophysiological mapping catheter ventricular tachycardia (VT) is one of the hot spots and difficulties in electrophysiological research. The pathogenesis of idiopathic VT and catheter ablation There are still many problems to be solved in the treatment. Studies have shown that: The ischemic ventricular tachycardia reentry circuit is mainly located in different depths of the chamber wall, and almost all of the components of the ventricular tachycardial reentry ring contain...