Abstract
Purpose
The purpose of the present study was to assess the long-term success rate of a single 3-min freeze per vein ablation strategy in the setting of pulmonary vein isolation (PVI) by means of second-generation cryoballoon (CB-A; Arctic Front Advance, Medtronic, Minneapolis, MN, USA) in a large cohort of patients.
Methods
Three hundred and one patients with drug resistant atrial fibrillation (AF) having undergone PVI by means of CB-A using a single 3-min freeze per vein ablation strategy were included in the analysis.
Results
Paroxysmal AF (PAF) was documented in 70.8% of the patients, while 29.2% presented with persistent AF (PersAF). The mean number of CB applications was 1.09 ± 0.3 in the left superior pulmonary vein (LSPV), 1.04 ± 0.2 in the left inferior pulmonary vein (LIPV), 1.12 ± 0.3 in the right superior pulmonary vein (RSPV), and 1.12 ± 0.3 in the right inferior pulmonary vein (RIPV). All PVs were successfully isolated with a 28-mm CB-A only. After a mean follow-up of 38.1 ± 7.5 months, 207 (68.8%) patients were free of atrial tachyarrhythmia (ATa) recurrences following a single procedure. Specifically, 72.8% of patients presenting with PAF and 59.1% of individuals with PersAF did not experience a recurrence.
Conclusions
A single 3-min freeze per vein strategy is effective in treating AF on a long term follow-up of 38 months. Specifically, it can afford freedom from ATa recurrences in 72.8% of patients affected by PAF and 59.1% of patients initially presenting with PersAF after a single CB-A procedure.
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This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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Dr. Chierchia and Dr. Asmundis have received compensation for teaching purposes and proctoring from AF Solutions and Medtronic. Dr. Chierchia has received speaker fees from Biosense and Webster. Dr. Brugada has received research grants on behalf of the center from Biotronik, Medtronic, St. Jude Medical, Sorin, and Boston Scientific and speaker’s fees from Biosense Webster, Biotronik, and Medtronic. Dr. Asmundis is a consultant for Daiichi Sankyo. Dr. Abugattas is currently receiving an educational grant for postgraduate in Cardiac Electrophysiology and Pacing academic course from St. Jude Medical.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Informed consent was obtained from all individual participants included in the study.
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Coutiño, HE., Abugattas, JP., Sieira, J. et al. Single 3-min freeze per vein ablation strategy with the second-generation cryoballoon for atrial fibrillation in a large cohort of patients: long term outcome after a single procedure. J Interv Card Electrophysiol 53, 81–89 (2018). https://doi.org/10.1007/s10840-018-0393-4
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DOI: https://doi.org/10.1007/s10840-018-0393-4