AI FAM reduced mean total procedure time (122.5 vs 129.0 min, P=0.046) compared to standard mapping, with comparable 1-year freedom from AF recurrence (80.0% vs 81.4%, P=0.610).
Cohort (n=298)
Does the CARTOSOUND FAM (AI FAM) module improve procedural efficiency and one-year outcomes compared to standard electroanatomical mapping in patients undergoing radiofrequency atrial fibrillation ablation?
AI-automated left atrial reconstruction during AF ablation significantly reduces procedure and left atrial dwell times without compromising safety or 1-year rhythm control.
Tasa de eventos absoluta: 80% vs 81.4%
valor p: p=0.610
Abstract Background Intracardiac echocardiography (ICE)-based electroanatomical mapping (EAM) improves procedural efficiency and safety in atrial fibrillation (AF) ablation and remains the standard of care. The CARTOSOUND FAM (AI FAM) module uses a deep-learning algorithm that automates left atrial reconstruction without manual contouring. Objective This study aims to evaluate the one-year outcomes of AI FAM compared to standard-of-care EAM in AF ablation. Methods This study included 298 patients undergoing radiofrequency AF ablation between Jan 2021 to Dec 2023. Patients treated before Jan 2023 underwent standard-of-care EAM, while those in 2023 utilized AI FAM-based reconstruction. Baseline demographics, comorbidities, AF type, and medication use were recorded. Procedural characteristics, acute success, complications, and AF recurrence at one-year follow up were analyzed. Results Of the 298 patients, 115 underwent mapping with AI FAM and 183 with EAM. Baseline characteristics were comparable. AI FAM reduced mean total procedure time (122.5±23.5 vs 129.0±30.4min, P=0.046) and left atrial (LA) dwell time (78.3±21.45 vs 87.5±28.2min, P=0.001). Acute procedural success was 98.3% in AI FAM vs 98.9% in EAM with fewer complications observed in the AI FAM group (1 vs 4). At one year, freedom from AF recurrence was comparable (80.0% AI FAM vs 81.4% EAM at 1yr, LogRank P=0.610). Conclusion AI FAM was associated with incremental but significant procedural advantages over conventional contouring via reduced total procedure time and LA dwell time, without compromising acute and long-term safety and rhythm control efficacy. AI FAM integration with PFA will mark another step towards making AF ablation more streamlined and accessible.
Zou et al. (Wed,) conducted a cohort in Atrial fibrillation (n=298). CARTOSOUND FAM (AI FAM) module vs. Standard-of-care electroanatomical mapping (EAM) was evaluated on Freedom from AF recurrence at one year (p=0.610). AI FAM reduced mean total procedure time (122.5 vs 129.0 min, P=0.046) compared to standard mapping, with comparable 1-year freedom from AF recurrence (80.0% vs 81.4%, P=0.610).