Study population
Consecutive patients with paroxysmal AF who underwent the initial PVI procedure with CBA in our center between December 2021 and June 2022 were prospectively enrolled. Patients with previous ablation history, significant valvular abnormalities, and intracardiac thrombus were excluded from the study. The baseline characteristics were prospectively collected. The procedural data were prospectively collected and retrospectively analyzed. The study was approved by the institutional review board, and all participants gave written informed consent. This study complies with the Declaration of Helsinki. The study was reviewed and approved by the ethics committee of Fuwai Yunnan Cardiovascular Hospital.