Feasibility and safety of pulmonary vein isolation by high-power short-duration radiofrequency application: short-term results of the POWER-FAST PILOT study.
Sergio Castrejón-CastrejónMarcel Martínez CossianiMarta Ortega MolinaCarlos EscobarConsuelo Froilán TorresNerea Gonzalo BadaMarta Díaz de la TorreJosé Manuel Suárez PargaJosé Luis López SendónJosè Luis MerinoPublished in: Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing (2019)
PVI of all targeted veins was achieved in 98% and 100% of patients of the conventional and HPSD groups, respectively (p = 0.59). Total radiofrequency time was 34 ± 11, 24 ± 8, and 15 ± 5 min in groups 30 W, 50 W, and 60 W (p < 0.001). Audible steam pops occurred in 4 out of 48 (8%) patients in the HPSD group, accounting for 4 (0.08%) out of 5 269 HPSD radiofrequency applications. No patient in the HPSD group developed pericardial effusion. The incidence of oesophageal lesions was 28%, 22%, and 0% in groups 30 W, 50 W, and 60 W, respectively (p = 0.007) CONCLUSIONS: PVI can be achieved with HPSD PPRF in most patients. This approach appears safe and associated with low risk of esophageal damage.