P1922Ablation index-guided ablation versus second-generation cryoballoon for first pulmonary vein isolation in atrial fibrillation
| Autor: | F. Bello Morgado, J Carmo, Daniel Matos, F Moscoso Costa, Pedro Adragão, Salomé Carvalho, A Felix-Oliveira, Diogo Cavaco, Adriele Souza Fontes, G Rodrigues, Pedro Carmo |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | European Heart Journal. 40 |
| ISSN: | 1522-9645 0195-668X |
| DOI: | 10.1093/eurheartj/ehz748.0669 |
| Popis: | Background In a recent trial, cryoballoon (CB) ablation was non-inferior to radiofrequency ablation regarding effectiveness in atrial fibrillation (AF). Ablation index (AI) provides a more accurate estimation of ablation quality using three variables: power delivered with time, contact force and catheter stability. The additional benefit of AI-guided ablation versus CB ablation is unknown. Objective To compare AI-guided ablation and CB ablation for first pulmonary vein isolation (PVI) in patients with AF. Methods We assessed 141 patients (62±12 years old, 76 men and 126 paroxysmal AF) with drug refractory symptomatic AF submitted to AI-guided PVI or second-generation CB catheter. Endpoint was AF/AT/AFL recurrence after a 3-month blanking period with a minimum follow-up of 6 months. Cox regression was used to assess the relationship between type of ablation and AF recurrence. Results Fifty-seven patients underwent AI-guided PVI and 84 patients underwent CB ablation. The baseline characteristics are described in table 1. Procedure duration was significantly higher in AI group (150 vs 111 min, P Table 1. Baseline characteristics Conclusion In this analysis, AI-guided ablation was associated with lower arrhythmia recurrence when compared with CB ablation. This hypothesis should be further evaluated in a prospective randomized trial. |
| Databáze: | OpenAIRE |
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