2.1 Patients
Consecutive AF patients undergoing RFCA at Korea University Medicine
Anam Hospital between June 1998 and April 2019 were analyzed
retrospectively. A total of 3,120 patients underwent their first RFCA
for AF during the study period. There was no specific exclusion criteria
and all patients who underwent their first-time RFCA in our institution
were included. This study was approved by the Institutional Review Board
of Korea University Medicine Anam Hospital. Written informed consent was
waived due to the retrospective nature of the current study. The study
protocol adheres to the ethical guidelines of the 2008 Declaration of
Helsinki.