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Lesion Durability After Antral Pulmonary Vein Isolation Using a Radiofrequency Hot Balloon Catheter

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Publisher Springer
Date 2020 Sep 17
PMID 32939701
Citations 2
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Abstract

Purpose: Antral pulmonary vein isolation (PVI) using a radiofrequency hot balloon catheter (RHB) is a feasible therapeutic option for treating atrial fibrillation (AF). Lesion durability after antral RHB-PVI remains unknown. This study aimed to evaluate lesion durability and the associations between procedural characteristics after antral RHB-PVI.

Methods: A total of 200 patients received antral RHB-PVI using the single-shot technique between April 2016 and March 2018. Antral RHB-PVI was performed following a pre-specified protocol and RHB energy application was performed for a maximum of two times for each PV. Consecutive patients who underwent repeated procedures for recurrence of any type of atrial tachyarrhythmia were enrolled.

Results: Twenty-six (13%) patients underwent repeated ablation and 20 patient documented AF recurrence (AF group) and 6 patients documented non-AF recurrence (non-AF group). Repeated ablation was performed at a median (25th, 75th percentiles) of 378 days (217, 487) after the initial procedure and durable PVI was observed in 86 (83.5%) PVs. Durability reached 89.7% when PVI was achieved only using an RHB. In the AF group (79 PVs), durable PVI was observed in 62 (78.5%) PVs, whereas all 24 PVs were still isolated in the non-AF group. The majority of reconnection sites were around the superior PVs.

Conclusions: Antral RHB-PVI shows high lesion durability, especially with both inferior PVs.

Citing Articles

Current Balloon Devices for Ablation of Atrial Fibrillation.

Nakahara S, Hori Y, Fukuda R, Sato H, Aoki H, Kondo Y Rev Cardiovasc Med. 2024; 25(1):34.

PMID: 39077656 PMC: 11262367. DOI: 10.31083/j.rcm2501034.


Effects of Hot Balloon vs. Cryoballoon Ablation for Atrial Fibrillation: A Systematic Review, Meta-Analysis, and Meta-Regression.

Peng X, Liu X, Tian H, Chen Y, Li X Front Cardiovasc Med. 2022; 8:787270.

PMID: 34977192 PMC: 8714841. DOI: 10.3389/fcvm.2021.787270.

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