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Kaplan–Meier curves of survival free from any ATas recurrence during follow-up. The Kaplan–Meier curve of any ATas-free survival during the follow-up showed that the overall freedom from ATas was 83.2% for the RF balloon and 82.0% for the CB (P = 0.85) at a mean follow-up of 12.1 ± 4.8 months. ATas, atrial tachyarrhythmias; CB, cryoballoon; RF, radiofrequency.
