Effect of Ablation of Adenosine Induced Pulmonary Veins Dormant Conduction after Pulmonary Vein Isolation (PVI) on Intermediate Term Recurrence of Atrial Fibrillation (AF)

Abstract

trial fibrillation is the most common sustained cardiac rhythm disturbance, its prevalence increases with age. It has been well established that pulmonary vein (PV) triggering or driving is the dominant mechanism for paroxysmal atrial fibrillation (AF), and circumferential PV isolation (CPVI) is the main approach for AF elimination. Despite the sophisticated technology involved in AF ablation therapy, however, AF recurrence may be observed either in the early period after PVI or during long-term follow-up. In some patients, temporal exacerbation of AF is observed during the early period after PVI. Furthermore, it is not clearly defined when the early periods ends and when the late period starts. Previously, AF recurrences during the first weeks after PVI were treated as a non-significant factor, but nowadays they are regarded to have an impact on long-term PVI failure. Aim of the study: This study aims to identify the effect of dormant conduction ablation induced by adenosine after PVI in short (within 3 month) and intermediate (within 6 month) term recurrence of AF.