Comparison between pulsed and continuous radiofrequency delivery

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Abstract
Potentials arising in the pulmonary veins (PV) have been proposed to be a trigger of atrial fibrillation. Percutaneously, the best results for curative treatment of atrial fibrillation have been achieved by segmental or circumferential isolation of the PV. The purpose of our study was to determine the feasibility of ostial pulmonary vein isolation and to compare continuous radiofrequency (RF) with pulsed RF concerning homogeneity and transmurality of produced lesions.