Márquez Manlio F
Departamento de Electrocardiografía y Electrofisiología, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No. 1, Col. Sección XVI, Tlalpan, 14080 México, D.F.
Arch Cardiol Mex. 2003 Apr-Jun;73 Suppl 1:S88-92.
Radiofrequency catheter ablation has emerged as a curative therapy for atrial flutter based on studies demonstrating the role of the cavotricuspid isthmus. With a high rate of success and minimal complications, catheter ablation is the therapy of choice for patients with the common type of atrial flutter. Left atrial flutter, non-cavotricuspid isthmus dependent, and those associated with heart disease have a worst outcome with catheter ablation. Radiofrequency catheter ablation has also emerged as a curative therapy for paroxysmal atrial fibrillation based on studies demonstrating the role of triggering foci in the pulmonary veins for the initiation of atrial fibrillation. Catheter ablation is performed by a transseptal approach using radiofrequency energy at the ostium of each pulmonary vein. Mapping is guided by special catheters. Sequential radiofrequency applications eliminates or dissociates pulmonary vein muscle activity. Although complications exists, this is the only curative method for these patients.
基于多项证实腔静脉-三尖瓣峡部作用的研究，射频导管消融已成为治疗心房扑动的一种根治性疗法。导管消融成功率高且并发症极少，是常见类型心房扑动患者的首选治疗方法。左心房扑动、非腔静脉-三尖瓣峡部依赖型以及与心脏病相关的心房扑动，导管消融的效果较差。基于多项证实肺静脉触发灶在房颤起始中作用的研究，射频导管消融也已成为治疗阵发性房颤的一种根治性疗法。通过经房间隔途径，在每条肺静脉开口处使用射频能量进行导管消融。使用特殊导管进行标测。依次施加射频可消除或分离肺静脉肌活动。尽管存在并发症，但这是这些患者唯一的根治方法。
