Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2020
Temperature-guided ablation with the second-generation cryoballoon for paroxysmal atrial fibrillation: 3-year follow-up in a multicenter experience.
СтатьяМногоцентровое исследованиеНаблюдательное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Paparella Gaetano, Iacopino Saverio, Osório Thiago Guimarães, de Torres Juan Pablo Abugattas, Ströker Erwin, Sieira Juan, Vanacker Hannes, De Ruyter Bernard, Boveda Serge, Maj Riccardo, Borio Gianluca, Rizzo Alessandro, Galli Alessio, Brugada Pedro, de Asmundis Carlo, Chierchia Gian-Battista
Аннотация
PURPOSE: A strategy based on the attainment of the specific parameter of - 40 °C within the first 60 s during cryoenergy applications in the setting of cryoballoon ablation (CB-A) without the use of an inner lumen mapping catheter (ILMC) (Achieve; Medtronic, USA) for the visualization of real-time recordings (RTR) has been previously described. The latter has proven to be very effective in guaranteeing freedom from atrial arrhythmias in patients affected by paroxysmal atrial fibrillation (PAF) at 1-year follow-up. The purpose of this retrospective observational study was to evaluate the clinical outcomes of this strategy in a multicenter experience on a long-term follow-up of 3 years.
METHODS: A total of 192 patients having undergone CB ablation for paroxysmal AF (PAF) starting from September 2015 to November 2016 that underwent a temperature-guided approach were included.
RESULTS: Mean procedural time was 68.77 ± 18.88. The mean number of freezes in the LSPV was 1.2 ± 0.4, 1.2 ± 0.4 in the LIPV, 1.1 ± 0.4 in the RSPV, and 1.2 ± 0.4 in the RIPV. Considering a blanking period of 3 months, freedom from AF off-AAD was achieved in 77.6% (149/192) at mean 34.5 ± 5.5 months and median 35.1 months (IQR, 32.3-37.0 months) follow-up after 1 procedure.
CONCLUSIONS: A temperature-guided approach affords freedom from AF at a 3-year follow-up period in a large majority of patients affected by PAF having undergone a single CB-A procedure.
METHODS: A total of 192 patients having undergone CB ablation for paroxysmal AF (PAF) starting from September 2015 to November 2016 that underwent a temperature-guided approach were included.
RESULTS: Mean procedural time was 68.77 ± 18.88. The mean number of freezes in the LSPV was 1.2 ± 0.4, 1.2 ± 0.4 in the LIPV, 1.1 ± 0.4 in the RSPV, and 1.2 ± 0.4 in the RIPV. Considering a blanking period of 3 months, freedom from AF off-AAD was achieved in 77.6% (149/192) at mean 34.5 ± 5.5 months and median 35.1 months (IQR, 32.3-37.0 months) follow-up after 1 procedure.
CONCLUSIONS: A temperature-guided approach affords freedom from AF at a 3-year follow-up period in a large majority of patients affected by PAF having undergone a single CB-A procedure.