Abstract
Purpose
Recent data suggests that high burden of premature atrial complexes after pulmonary vein isolation predicts recurrences of atrial arrhythmias. The present study sought to assess the role of premature atrial complexes burden in predicting atrial arrhythmias recurrences in patients with atrial fibrillation (AF) who have undergone second-generation cryoballoon ablation (CB-Adv).
Methods
Consecutive patients with drug-resistant paroxysmal atrial fibrillation who underwent pulmonary vein isolation using CB-Adv technology as the index procedure were retrospectively included. Twenty-four-hour Holter recordings were performed for every patient. Based on previously published data, a burden of more than 76 premature atrial complexes per day was considered as being high.
Results
One hundred and seven patients were included in the analysis. The recurrence rate among the group of patients with more than 76 premature atrial complexes per day was significantly higher compared with the group with a lower burden of premature atrial complexes (47.5 vs 11.9%, respectively; p < 0.001). In the multivariate analysis, the documentation of more than 76 premature atrial complexes per day registered at 1 month and at the end of the blanking period, predicted late recurrence of atrial arrhythmias.
Conclusions
Frequent premature atrial complexes in the early stages after CB-Adv ablation strongly predict late recurrences of atrial arrhythmias.
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Dr. Chierchia and Dr. Asmundis have received compensation for teaching purposes and proctoring from AF Solutions and Medtronic. 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. Mugnai has received an educational grant for postgraduate in Cardiac Electrophysiology and Pacing academic course from Medtronic. 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., Levinstein, M. et al. Role of the burden of premature atrial contractions during the blanking period following second-generation cryoballoon ablation in predicting late recurrences of atrial arrhythmias. J Interv Card Electrophysiol 49, 329–335 (2017). https://doi.org/10.1007/s10840-017-0270-6
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DOI: https://doi.org/10.1007/s10840-017-0270-6