3-month durability of pulsed-fiels ablation with faraview software modul: preliminary results of the faraview remap study
N Szegedi, P Perge, G Orban, P Toth, F Komlosi, B Merkely, L Geller, Z SalloAbstract
Background
Pulmonary vein isolation (PVI) is the cornerstone of atrial fibrillation's (AF) rhythm control. Pulsed-field ablation (PFA) has demonstrated AF-free survival comparable to radiofrequency ablation. Although early subgroup analyses have explored PVI durability with the pentaspline catheter, long-term durability data for PVI performed using the mapping-integrated PFA system are still lacking.
Aim
To analyze the 3-month durability of PVI with pentaspline catheter and its integrated mapping system.
Methods
Patients underwent their initial PVI using the pentaspline PFA System and its integrated mapping module, using minimal fluoroscopy. Three months after the index procedure, all patients underwent a mandatory invasive left atrial remapping with high-density mapping catheter to assess pulmonary vein (PV) reconnection.
Results
We included 20 patients, age 62±11 years, 35% were female, 75% paroxysmal AF. Most frequent comorbidities were hypertension (60%), and diabetes (35%). Index procedure time was 56±11 min, left atrial dwell time was 42±9 min, absorbed fluoroscopy dose was 12±9 mGy. To date, 19 patients underwent the follow-up procedure. All PVs were isolated in 14 out of 19 patients (74%). Only 6 out of 81 PVs were reconnected (7%). No procedure-related complications occurred.
Conclusion
We found a low risk of PV reconnection after initial PVI using the pentaspline catheter and its integrated mapping module.