at Pennsylvania State U

ow nloaded from KEYWORDS pulmonary vein tachycardia; pulmonary vein isolation; paroxysmal atrial fibrillation; radiofrequency ablation Abstract A case is reported of recurrence of paroxysmal atrial fibrillation after pulmonary vein ablation. A second procedure achieved isolation of three pulmonary veins and showed persistence of pulmonary vein tachycardia in one with implications concerning the electrophysiology of atrial fibrillation