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Left atrial linear ablation of paroxysmal atrial fibrillation guided by three-dimensional electroanatomical system
Author(s): 
Pages: 219-221
Year: Issue:  4
Journal: CHINESE JOURNAL OF INTERVENTIONAL CARDIOLOGY

Keyword:  心房颤动电生理学技术心脏导管消融术;
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30 W,每点消融时间大于20 s.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±18 min,透视时间80±20 min.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.
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