Follow-up and data collection
All patients were scheduled for follow-up visit three months after the
procedure and every six months with clinical examination, AF/AT
recurrences were documented either by electrocardiogram or Holter
recordings. Patients with recurrences after the blanking period of three
months after procedure were considered for repeated ablation. We
collected clinical, electrocardiographic, echocardiographic, and
procedural data from medical files, or from patients’ cardiologist if
they were no longer followed in our centers.