Follow-up
All patients were followed up more than 12 months. The AF-free survival
rate at 3, 6 and 12 months were 95.9%, 90.4% and 79.3%, respectively,
for all patients after the first procedure. The 12-month AF-free
survival rates in patients with paroxysmal AF, persistent AF, and
long-standing persistent AF were 86.6%, 89.1% and 22.2%, respectively
(P<0.001 by log-rank test).