Ultrahigh-density mapping for evaluation of antral scar extension after ablation with radiofrequency balloon catheter in atrial fibrillation patients

For pulmonary vein isolation (PVI) to be achieved fast and effectively, various “single-shot” devices aiming to create wide antral circumferential lesions have been developed. In this multicenter study, we assessed the extension of the antral scar in patients undergoing their first PVI by means of a radiofrequency (RF) balloon (HelioStar; Biosense Webster, Irvine, CA). The ultrahigh-density voltage maps, before and after ablation, were acquired in sinus rhythm with use of an octa-spline mapping catheter (Octaray; Biosense Webster).

Source: Heart Rhythm - March 27, 2024 Category: Cardiology Authors: Teresa Strisciuglio, Sara Poggi, Assunta Iuliano, Giorgio Spiniello, Alexandre Almorad, Gian Battista Chierchia, Carlo de Asmundis, Federica Torri, Massimiliano Manfrin, Livio Bertagnolli, Claudio Pandozi, Maurizio Russo, Marco Galeazzi, Giuseppe Stabile Tags: Research Letter Source Type: research