Loss of pace capture on the ablation line: the quest for a more reliable endpoint for pulmonary vein isolation.

During the last decade we have witnessed an impressiveworldwide race to improve the efficacy and safety of cath-eter ablation of atrial fibrillation. In spite of many differentapproaches to tackle the challenges to find a curative treat-ment for atrial fibrillation, the electrophysiological commu-nity has reached some common grounds. One of them is theneed to achieve complete pulmonary vein (PV) electricaldisconnection in all patients as the only valid endpoint ofPV isolation.

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