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Long-term clinical outcomes after single freeze cryoballoon ablation for paroxysmal atrial fibrillation: a 5-year follow-up.
- Source :
-
Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing [J Interv Card Electrophysiol] 2021 Jun; Vol. 61 (1), pp. 87-93. Date of Electronic Publication: 2020 May 29. - Publication Year :
- 2021
-
Abstract
- Background: The second-generation cryoballoon ablation (CB-A) has been proven to be safe and effective for pulmonary vein (PV) isolation. Little is known regarding the long-term outcome following CB-A ablation for paroxysmal atrial fibrillation (AF). The aim of the study was to evaluate the freedom from atrial arrhythmias during a 5-year follow-up period among consecutive patients having undergone PV isolation with the CB-A for paroxysmal AF METHODS AND RESULTS: A total of 208 consecutive patients having undergone index PV isolation using CB-A (138 males, 66%; mean age 59.0 ± 12.6 years) were included in our retrospective analysis. Follow-up was based on outpatient clinic visits including Holter electrocardiograms. Recurrence of atrial tachyarrhythmias was defined as a symptomatic or documented episode of > 30 s. At a median follow-up of 62 months, freedom from atrial arrhythmias after a single procedure was achieved in 57.2% of patients. Multivariate analysis demonstrated that obesity, left atrial diameter, and duration of symptoms before AF ablation were independent predictors of ATas recurrences. Major complications occurred in 2.4% of patients.<br />Conclusions: The present study found a 5-year single-procedure success rate of 57.2% following CB-A ablation procedure. Obesity, higher LA dimensions, and longer duration of symptoms before ablation independently predicted the outcome.
Details
- Language :
- English
- ISSN :
- 1572-8595
- Volume :
- 61
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing
- Publication Type :
- Academic Journal
- Accession number :
- 32472280
- Full Text :
- https://doi.org/10.1007/s10840-020-00788-w