研究单位：[1]The Second Affiliated Hospital of Kunming Medical University,Kunming,Yunnan,China,650000[2]The First Affiliated Hospital of Kunming Medical University,Kunming,Yunnan,China,650000
研究目的：
The electrophysiological mechanisms of atrial fibrillation remain disagreements. The goal of this clinical trail is to propose a new electrophysiological mechanism hypothesis of atrial fibrillation（AF）,meanwhile, the investigators sought to test the hypothesis that the superposition electrograms (SPEs) recorded during atrial fibrillation could be used as target sites for catheter ablation of atrial fibrillation.
