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经导管射频消融技术(RFCA)的问世使快速心律失常的治疗发生了巨大的变化,已成为许多类型心律失常的首选治疗措施,且具有根治效果。1 房室结折返性心动过速 房室结内或其周围存在的快径路和慢径路是发生房室结折返性心动过速(AVNRT)的基础。采用导管射频消融技术改良房室结,即选择性地消融快径路或慢径路,可根治AVNRT。一般多采用选择性消融慢径路,根据解剖标测慢径路区。放电过程中出现房室交界性逸搏或交界性心动过速是房室结
The advent of transcatheter radiofrequency ablation (RFCA) has undergone tremendous changes in the treatment of tachyarrhythmias, and has become the treatment of choice for many types of arrhythmias with a curative effect. 1 Atrioventricular nodal reentrant tachycardia The presence of fast track and slow track in or around the atrioventricular node is the basis of atrioventricular nodal reentrant tachycardia (AVNRT). The use of catheter radiofrequency ablation to improve atrioventricular node, that is, selective ablation of fast track or slow track, can cure AVNRT. The general use of selective ablation slow path, according to anatomical mapping slow path area. Occurred during the discharge of atrioventricular junctional escape or borderline tachycardia is atrioventricular node