RT Journal Article SR Electronic A1 Rizzo, Toni T1 Unexcitability of Ablation Line and Pulmonary Vein Isolation JF MD Conference Express YR 2012 FD SAGE Publications VO 12 IS 6 SP 13 OP 13 DO 10.1177/155989771206009 UL http://mdc.sagepub.com/content/12/6/13.1.abstract AB Atrial fibrillation (AF) or atrial tachycardia commonly recurs after radiofrequency catheter ablation because of poor durability of pulmonary vein isolation (PVI). This article discusses findings from a trial, based on the hypothesis that the achievement of unexcitability along the ablation line using a pace-guided approach during PVI reduces recurrences of atrial arrhythmia in patients with paroxysmal AF after PVI.