Complications in the Catheter Ablation of Atrial Fibrillation

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Abstract
Radiofrequency catheter ablation is widely performed as an effective treatment for recurrent, drug-resistant atrial fibrillation (AF). Recently, various types of ablation strategies, such as extensive encircling pulmonary vein (PV) isolation, linear ablation and complex fractionated electrogram-guided ablation, have been used to achieve a high efficacy for all types of AF. However, several complications (thromboembolic events, PV stenosis and atrio-esophageal fistula etc) with an incidence of 3.9-6%, have been reported. It is important to understand the incidence, prevention and management of complications in order to develop safe ablation strategies. (Circ J 2009; 73: 221 - 226)