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Long‐termoutcome of high‐power ablation guided by ablation index in the treatment of atrial fibrillation

Authors :
Mao, Shaobin
Wang, Leigang
Fan, Hongxuan
Yang, Ling
Wang, Xun
Liang, Bin
Source :
Journal of Arrhythmia; June 2024, Vol. 40 Issue: 3 p455-462, 8p
Publication Year :
2024

Abstract

High‐power ablation has been widely used in atrial fibrillation (AF). However, there were many studies observed the outcomes of the short‐term follow‐up. This study aims to the long‐term results of high‐power ablation guided by ablation index (AI) in patients with AF. Analysis of patients with AF, who first received high‐power (40–50 W) ablation, to pulmonary vein isolation (PVI) in the Second Hospital of Shanxi Medical University from May 2020 to March 2022. All patients were managed perioperatively according to the routine treatment procedures. High‐power ablation was conducted under the guidance of our conventional power AIand baseline data, first‐pass PVIrate, ablation time, operative time, and long‐term surgical success rate were analyzed. A total of 83 patients with atrial fibrillation were enrolled in the study, with an average age of 61.62 ± 9.04 years, 47 male patients, and 49 paroxysmal atrial fibrillation. All patients achieved PVI, and the rate of first pass was 82%. The ablation time of the left atrial was 28.54 ± 9.11 min. There were no serious complications related to ablation, and only a small amount of pericardial effusion was found in 4 patients. During the follow‐up period of 26.36 ± 6.11 months, 8 patients were lost to follow‐up and the overall success rate was 84%, including 91% for paroxysmal AFand 71% for persistent AF. High‐power ablation long‐term results appear a high freedom atrial arrhythmia, but further expanded samples are needed for controlled studies. This study demonstrates that the long‐term outcome and safety after high‐power ablation with target AI in AF patients. After the long‐term follow‐up, the high‐power ablation with target AI has a high efficacy and long‐term results to appear a high freedom atrial arrhythmia.

Details

Language :
English
ISSN :
18804276 and 18832148
Volume :
40
Issue :
3
Database :
Supplemental Index
Journal :
Journal of Arrhythmia
Publication Type :
Periodical
Accession number :
ejs66743492
Full Text :
https://doi.org/10.1002/joa3.13035