| Outcome Measures: |
Primary: recurrence rate of AF within a year in all participants, Recurrence rates of AF after stepwise rhythm control therapies including anti-arrhythmic drugs (AAD) and ablation., during 1 year|recurrence rate of AF within a year in ablated participants, Recurrence rates of AF after stepwise rhythm control therapies including anti-arrhythmic drugs (AAD) and ablation., 1 year | Secondary: Atrial fibrillation free survival, will be compared between two groups as the first of the secondary outcome, analyzed with Kaplan-Meier method and documented on curve, from enrollment to recurrence|Atrial fibrillation burden, AF burden is defined as atrial fibrillation time percentage documented on 24-hour Holter ECG, at the enrollment and 3, 6, 9 and 12 months after enrollment|Ablation rate, percentage of patients undergone ablation within a year, 1 year|Sinus rhythm maintenance rate, Sinus rhythm is considered stable when either a standard ECG or a 24-hour Holter ECG showed no episode of clinically relevant arrhythmia, including AF, at the time of check-up, at the enrollment and 3, 6, 9 and 12 months after enrollment|Diameter of left atrium, mm, measuring by transthoracic echocardiography, difference between the time of enrollment and the time after 1 year|NT-proBNP, pg/mL, difference between the time of enrollment and the time after 1 year|mEHRA (modified European Heart Rhythm Association) symptom score, 1, 2a, 2b, 3 and 4. High score means high AF severity., at the enrollment and 3, 6, 9 and 12 months after enrollment|Atrial Fibrillation Effect on QualiTy-of-Life (AFEQT) score, consisted of 20 questions. Lower AFEQT score means high AF severity., at the enrollment and after 1 year
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