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目的:探讨左心房(LA)后部在慢性房颤(AF)中的作用。方法和结果:有27例慢性AF患者入选。在肺静脉隔离后,采用盐水灌注导管施行连接左右肺静脉的消融以实现对LA后部的隔离。LA后部电活动消失、该区域不能被起搏则为成功隔离。根据心动周期长度(CL)的改变和AF的终止确定消融效果。
Objective: To investigate the role of the posterior part of the left atrium (LA) in chronic atrial fibrillation (AF). Methods and Results: Twenty-seven patients with chronic AF were enrolled. After pulmonary vein isolation, a saline infusion catheter was used to ablate the left and right pulmonary veins to achieve isolation of the posterior LA. LA posterior electrical activity disappeared, the area can not be pacing for the successful isolation. Ablation was determined based on changes in cardiac cycle length (CL) and AF termination.