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射频导管消融(下称消融)是房室旁道介导的心律失常的首选治疗,消融成功率仍然决定于旁道的精确定位。由于隐含房室旁道纤维的间隔区周围解剖复杂,间隔旁道的消融较其他部位困难。也有报道间隔旁道患者消融后复发率较高且存在房室传导阻滞的风险。后间隔区解剖上分为右侧和左侧,分别与三尖瓣环和二尖瓣环相对应。许多研究者根据心电图图形而设计左心室旁道插入端的定位算式。虽然V_1正向delta波能进一步区分左侧与右侧后间隔旁道,但其他研究证实难以确定左侧与右侧后间隔旁道的位置。
Radiofrequency catheter ablation (hereinafter referred to as ablation) is the preferred treatment of atrioventricular-mediated arrhythmia, ablation success rate is still determined by the accurate positioning of the bypass. Due to the complex anatomy around the septal area of the implanted atrioventricular fibers, ablation of the septal pathways is more difficult than elsewhere. It has also been reported that there is a high risk of recurrence and atrioventricular block after ablation of the accessory pathway patients. The posterior septum is anatomically divided into right and left, corresponding to the tricuspid and mitral annulus, respectively. Many researchers design the positioning algorithm for the insertion of the left ventricular access line based on the ECG pattern. Although the V_1 positive delta wave can further differentiate the left and right posterior septal bypass, other studies confirm the difficulty of determining the location of the left and right posterior septal bypass.