Affiliation:
1. FSAEI HE “Peoples’ Friendship, University of Russia”; City Clinical Hospital No. 1 named after N.I.Pirogov
2. City Clinical Hospital No. 1 named after N.I.Pirogov; Russian Gerontological Scientific and Clinical Center, Pirogov Russian National Research Medical University
3. City Clinical Hospital No. 1 named after N.I.Pirogov
4. FSAEI HE “Peoples’ Friendship, University of Russia”
5. Russian Gerontological Scientific and Clinical Center, Pirogov Russian National Research Medical University
Abstract
Aim. Evaluation of the clinical efficacy and safety of a high-power short-duration (HPSD) strategy for ablation index (AI) - guided pulmonary vein isolation (PVI) using different power settings.Methods. 185 patients were scheduled for AI guided ablation. Patients were randomized into 2 groups and every group was divided into two subgroups. First group (n=95) PVI was performed with 50W. Second group (n=90) with 45 W. In Ia and IIa AI was 400-450 au (arbitrary unit) in posterior wall and 500-550 au. in the anterior wall. In Ib and IIb AI was 400-450 au in posterior wall and 450-500 au in the anterior wall.Results. Efficacy of the PVI was 100% in all patients. Within 6 months, atrial fibrillation recurred in Ia, Ib, IIa and IIb subgroups were 5/55 (9,0%), 4/40 (10%), 6/50 (12%) и 5/40 (12,5%) p >0,05. First-pass PVI in Ia, Ib, IIa and IIb subgroups were 53/55 (96,36%), 37/40 (92.5%), 46/50 (92%), 36/40 (90,5%) (p>0,05). There was no significant intra operative complications. The total procedure time was 55±10 min, 50±8 min, 60±10 min, 56±9 min (p>0,05).Conclusions. HPSD ablation in patients with atrial fibrillation significantly reduces the procedure time, does not increase the incidence of intraoperative complications and is effective in the short term results.
Publisher
Institute of Cardio Technics - INCART
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