阵发性心房颤动的三维电解剖标测指导左心房线性消融治疗Left atrial linear ablation of paroxysmal atrial fibrillation guided by three-dimensional electroanatomical system
张代富,李莹,祁炜罡,梁波,庄少伟,王娟,俞莉,包丽娟
摘要(Abstract)：
目的探讨三维电解剖标测指导左心房线性消融治疗阵发性心房颤动(房颤)的有效性和安全性。方法对29例入选的阵发性房颤患者使用Carto系统建立左心房三维电解剖图,结合肺静脉造影确定肺静脉开口,围绕左、右上、下肺静脉口完成环肺静脉线性消融。预设温度43℃,最大功率30W,每点消融时间大于20s。局部电位振幅降低50%以上再移动靶点,逐点完成预定消融线。结果本组患者平均操作时间180±18min,透视时间80±20min。平均放电次数120±15次。术后随访6个月。24例无房颤再发;3例在术后3个月内再发房颤,但次数较前明显减少,6个月后无房颤再发;1例偶有房颤发作;1例复发。所有患者均无肺静脉狭窄发生。结论三维电解剖标测指导左心房线性消融治疗阵发性房颤,在成功率及安全性上具有明显的优势。
关键词(KeyWords)： 心房颤动;电生理学技术,心脏;导管消融术
基金项目(Foundation):
作者(Author): 张代富,李莹,祁炜罡,梁波,庄少伟,王娟,俞莉,包丽娟
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