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- Title
Single freeze strategy with the second- generation cryballoon for atrial fibrillation: a multicenter international retrospective analysis in a large cohort of patients.
- Authors
De Regibus, Valentina; Iacopino, Saverio; Abugattas, Juan; Coutiño, Hugo; Mugnai, Giacomo; Storti, Cesare; Conte, Giulio; Auricchio, Angelo; Moran, Darragh; Ströker, Erwin; Marroquin, Luis; Takarada, Ken; Choudhury, Rajin; Asmundis, Carlo; Brugada, Pedro; Chierchia, Gian-Battista
- Abstract
Purpose: The second-generation cryoballoon (CB-A, Arctic Front Advance, Medtronic, Minneapolis, MN, USA) has proven to be highly effective in achieving freedom from atrial fibrillation; nonetheless, the ideal number and duration of freezing cycles is still a matter of debate. We investigated the acute success, procedural complications, and clinical outcome of a single freeze strategy using the CB-A in a large, retrospective, international multicenter study. Methods: Between January 2013 and September 2015, 818 consecutive patients (58 ± 12 years, 68% males) with drug-resistant atrial fibrillation (AF) who underwent a CB-A using a single freeze strategy were taken into consideration for our analysis. Results: Paroxysmal AF was documented in 74.1% of the patients, while 25.9% presented with persistent AF. Additional freezes were needed in a mean 1.4 veins per patient. 0.2% of the patients experienced persistent PNP that was still documented at the last follow-up. After a median follow-up of 14 ± 8 months, taking into consideration a blanking period (BP) of 3 months, 692 patients (84.6%) were free from arrhythmia recurrence. After a single procedure, AF recurrence during BP and persistent AF were identified as predictors of clinical recurrence after BP. Conclusions: Single freeze CB-A ablation is effective in treating drug-resistant AF and affords freedom from arrhythmia recurrences in 84.6% of patients during a 14-month follow-up. Persistent AF and recurrence during BP are predictors of arrhythmia recurrences.
- Subjects
ATRIAL fibrillation treatment; MEDICAL balloons; DRUG resistance; DISEASE relapse; ARRHYTHMIA
- Publication
Journal of Interventional Cardiac Electrophysiology, 2017, Vol 49, Issue 2, p173
- ISSN
1383-875X
- Publication type
Article
- DOI
10.1007/s10840-017-0254-6