Follow-up
Anticoagulation was discontinued for three months after the index
procedure. All patients were followed at one, three, six, and 12 months
after the ablation procedure. Moreover, 12-lead electrocardiography
(ECG) was performed at every visit, and 24 h Holter ECG monitoring was
performed at three months and 12 months after ablation. If patients had
a symptom event even if no AF was documented in the Holter ECG, portal
ECG monitoring (hcg-801 heartscan, Omron, Japan) was used.