In this study, a test group includes those who undergoing atrial fibrillation(AF) ablation guided by high density voltage and fractionation map. A control group will be chosen from database of patients who underwent AF ablation between 2018-2019. A control group includes the same number of consecutive patients who underwent anatomy-based circumferential pulmonary vein (PV) isolation.
The purpose of this study is to evaluate the efficacy of high density voltage and fractionation map guided ablation compared to anatomy-based circumferential pulmonary vein Isolation in patients with atrial fibrillation