ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2025
Bipolar radiofrequency ablation for refractory scar-related interatrial septal tachycardias: a multicenter study.
Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Atypical atrial flutter ablation: clinical practice on patient selection, mapping, ablation strategies, and procedural endpoints-results from a European Heart Rhythm Association survey.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025Article
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Authors and funding
9 authors.
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Abstract
backgroundCatheter ablation of scar-related interatrial septal atrial tachycardias (IAS-ATs) is challenging and can be refractory to conventional unipolar radiofrequency catheter ablation (RFCA).
aimThis multicenter study investigated the safety and efficacy of bipolar radiofrequency catheter ablation (Bi-RFCA) in patients with IAS-AT refractory to conventional unipolar RFCA.
methodsConsecutive patients with scar-related IAS-AT refractory to conventional unipolar RFA across three electrophysiological centers were included in the study. Bi-RFCA with power up to 40 W and duration up to 60 s was performed with two ablation catheters across the IAS at sites identified with activation and entrainment mapping. Acute termination and noninducibility of the targeted IAS-AT was used as the intraprocedural ablation endpoint. Arrhythmia-free survival from any atrial arrhythmia (AT or atrial fibrillation) lasting > 30 s was used as a follow-up outcome measure.
resultsA total of 17 patients (12 males, age 62 ± 13) were included in the study. Acute elimination of arrhythmia with Bi-RFCA was achieved in all patients. Mean procedure time was 173 ± 69 min, mean bipolar RF time 209 ± 193 s, and mean power 39 ± 3 W. During 11 ± 3 months of follow-up, AT/AF recurrence was observed in 2 (12%) patients. No steam pops occurred during any of the Bi-RFCA applications and no other complications occurred during procedures or follow-up.
conclusionBi-RFCA is an effective and safe strategy to target scar-related IAS-AT refractory to standard unipolar RFCA.
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