Catheter ablation of paroxysmal atrial fibrillation initiated by non-pulmonary vein ectopy

Article; Proceedings Paper

关键词: SUPERIOR VENA-CAVA;    ELECTROPHYSIOLOGICAL CHARACTERISTICS;    RADIOFREQUENCY ABLATION;    THORACIC VEINS;    MARSHALL;    LIGAMENT;    FIBERS;    HETEROGENEITY;   

DOI  :  10.1161/01.CIR.0000074206.52056.2D

来源: SCIE

【 摘 要 】

Background-Most of the ectopic beats initiating paroxysmal atrial fibrillation (PAF) originate from the pulmonary vein (PV). However, only limited data are available on PAF originating from the non-PV areas. Methods and Results-Two hundred forty patients with a total of 358 ectopic foci initiating PAF were included. Sixty-eight (28%) patients had AF initiated by ectopic beats (73 foci, 20%) from the non-PV areas, including the left atrial posterior free wall (28, 38.3%), superior vena cava (27, 37.0%), crista terminalis (10, 3.7%), ligament of Marshall (6, 8.2%), coronary sinus ostium (1, 1.4%), and interatrial septum (1, 1.4%). Catheter ablation eliminated AF with acute success rates of 63%, 96%, 100%, 50%, 100%, and 0% in left atrial posterior free wall, superior vena cava, crista terminalis, ligament of Marshall, coronary sinus ostium, and interatrial septum, respectively. During a follow-up period of 22+/-11 months, 43 patients (63.2%) were free of antiarrhythmic drugs without AF recurrence. Conclusions-Ectopic beats initiating PAF can originate from the non-PV areas, and catheter ablation of the non-PV ectopy has a moderate efficacy in treatment of PAF.

【 授权许可】

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