Comparison between superior vena cava ablation in addition to pulmonary vein isolation and standard pulmonary vein isolation in patients with paroxysmal atrial fibrillation with the cryoballoon technique

• DOI: 10.1007/s10840-020-00932-6
• Publication Date: 2021-01-15T02:11:50Z
• Authors: Ingrid Overeinder; Thiago Guimarães ...; Paul-Adrian Călbu...; Antonio Bisignani; Gezim Bala; Juan Sieira; Erwin Ströker; Maysam Al Houssari; Joerelle Mojica; Serge Boveda; Gaetano Paparella; Pedro Brugada; Carlo de Asmundis; Gian-Battista Chi...
• Keywords: Paroxysmal atrial fibrillation; Isolation

Paroxysmal atrial fibrillation (PAF) can be triggered by non-pulmonary vein foci, like the superior vena cava (SVC). The latter is correlated with improved result in terms of freedom from tachycardias (ATs), when electrical isolation this vessel utilizing radiofrequency energy (RF) achieved.Evaluate clinical impact, patients PAF, SVC (SVCi) addition to ordinary pulmonary (PVI) means second-generation cryoballoon (CB) METHODS: A total 100 consecutive that underwent CB ablation for PAF were retrospectively selected. Fifty received PVI followed SVCi application, and following 50 standard PVI. All 12 months.The mean time was 36.7 ± 29.0 s temperature at - 35 (- 18 40) °C. Real-time recording (RTR) during observed 42 (84.0%) patients. At end months follow-up, ATs achieved 36 (72%) only group 45 (90%) PV (Fisher's exact test p = 0.039, binary logistic regression: 0.027, OR 0.28, 95%CI 0.09-0.86). In survival analysis, also associated (log-rank test: 0.017, Cox 0.026, HR 0.31, 0.11-0.87).Superior might improve if compared alone 1-year follow-up.