方法20例心脏扩大的持续性心房颤动患者接受在接触式三维标测系统（CARTO）指导下的递进式射频消融治疗，术中尽量终止心房颤动。手术6个月后进行随访，比较患者术前及术后的症状、左心房前后径、左心室舒张...
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提示此方法可应用于普通导管心内膜三维标测系统的信号处理。
It proved that this process can be used in endocardial mapping system.
目的探讨三维标测系统指导下行心房颤动(房颤)环肺静脉线性消融的安全性和有效性。
Objective To investigate the safety and efficacy of circumferential pulmonary vein linear ablation guided by 3-d mapping system in patients with atrial fibrillation.
结论：三维标测系统指引导管环肺静脉线性消融治疗阵发性心房颤动疗效高，安全性好。
Conclusion: Circumferential pulmonary vein linear ablation guided by 3d mapping system (CARTO system) was safe and effective for paroxysmal atrial fibrillation therapy.
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