4.1. Patient characteristics
Patient characteristics are shown in Table 1. During a mean follow-up
period of 436±188 days, 68 (24%) patients experienced AF recurrence.
Patients with AF recurrence more frequently had the persistent type of
AF and a larger left atrial diameter. Procedural characteristics are
shown in Table 2. PVI was completed in all patients, and no severe
procedure-related complications such as cardiac tamponade, stroke,
esophageal injury, or major bleeding were observed. Patients with AF
recurrence had a longer procedure time, higher frequency of cryoballoon
usage, and more mapping points on the voltage map after PVI.