TRUST-AF: TRanseptal Access Comparison of SL0 versUs Faradrive SheaTh in Pulsed Field Ablation for Atrial Fibrillation

M. Feher (Leipzig)1, T. M. Seewöster (Leipzig)1, F. Lindemann (Leipzig)2, S. Oebel (Leipzig)1, C. Stegmann (Leipzig)1, S. Nedios (Leipzig)3, S. Hilbert (Leipzig)1, K. Bode (Leipzig)1
1Herzzentrum Leipzig - Universität Leipzig Rhythmologie Leipzig, Deutschland; 2Herzzentrum Leipzig - Universität Leipzig Elektrophysiologie Leipzig, Deutschland; 3Herzzentrum Leipzig - Universität Leipzig Klinik für Innere Medizin/Kardiologie Leipzig, Deutschland
Background: 
Pulsed field ablation (PFA) is an emerging technology for pulmonary vein isolation (PVI) with a good safety profile. The conventional SL0 sheath workflow for transseptal access requires sheath exchange, potentially increasing procedural risk and duration.
 
Objectives: 
To compare procedural efficacy, safety, and cost-effectiveness of direct Faradrive sheath access versus conventional SL0 sheath workflow in PFA-guided PVI.
 
Methods: 
In this retrospective, monocentric study, 140 consecutive patients undergoing first-time PVI were evaluated: 70 patients using SL0 workflow and 70 with Faradrive sheath direct access. Primary endpoints included procedural time, fluoroscopy duration, radiation exposure, number of TSP attempts and complication rates.
 
Results: 
Patient baseline characteristics were comparable. The Faradrive sheath workflow significantly reduced procedural duration (Faradrive: 38.7 ± 10.7 min vs. SL0: 44.7 ± 14.9 min; p=0.007) and fluoroscopy time (7.6 ± 3.7 min vs. 9.0 ± 3.7 min; p=0.034). Number of TSP attempts were comparable (1,12 +- 0,32 vs. 1,23 +-0,5, p>0.5). No air embolism occurred in the Faradrive, but one in the SL0 group. The direct Faradrive approach resulted in an estimated cost saving of €260 per patient, attributed to shorter procedural duration and elimination of sheath exchange.
 
Conclusion: 
Direct transeptal access using the Faradrive sheath workflow in PFA-guided PVI is associated with improved procedural efficiency and lower costs compared to the traditional SL0 sheath workflow.