Kaplan–Meier curves of survival free from any atrial tachyarrhythmias recurrence in the whole cohort. Kaplan–Meier curve of survival free from any atrial tachyarrhythmias (ATas) occurrence in the whole (120-patient) cohort. After a mean follow-up of 62.3 months ± 20.3, freedom from ATas recurrence was obtained in 47.5% of patients.