Stepwise ablation strategy in radiofrequency ablation improves acute and long-term outcomes of scar-related ventricular tachycardias.

IF 1.4 4区医学 Q4 ENGINEERING, BIOMEDICAL

Technology and Health Care Pub Date : 2025-01-31 DOI:10.1177/09287329241307799

Pin Wang, Yanan Zuo, Chenglong Miao, Lu Xu, Yanwei Wang, Suyun Liu, Ru Xing, Bingyan Guo

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引用次数: 0

Abstract

Background: The optimal intervention procedures for scar-related ventricular tachycardia (VT) is still unclear.

Objective: This study aimed to compare the acute and long-term outcomes of a stepwise ablation approach targeting critical sites identified through activation mapping during VT or pace mapping followed by substrate ablation with substrate modification alone in patients with scar-related VT.

Methods: Data of 41 patients with scar-related VTs treated with stepwise ablation (Group 1, n = 29) or substrate modification alone during sinus rhythm (Group 2, n = 12) were retrospectively reviewed. The procedure acute success and long-term success during follow-up were compared.

Results: There was no statistical difference between the two groups on basic characteristics. Group 1 demonstrated shorter ablation time (P = 0.02), longer VT-free survival rates at a median follow-up of 24.0 months (P = 0.02) and a lower VT recurrence rate (hazard ratio: 0.17, 95% confidence interval: [0.03, 0.93], P = 0.04) compared to Group 2. The acute success and ratio of ablation area to scar area were comparable between the two groups (P ≥ 0.05).

Conclusion: The stepwise ablation strategy shows promise for improving acute and long-term outcomes and reducing the recurrence risk in patients with scar-related VT.

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来源期刊

Technology and Health Care HEALTH CARE SCIENCES & SERVICES-ENGINEERING, BIOMEDICAL

CiteScore

2.10

自引率

6.20%

发文量

282

审稿时长

>12 weeks

期刊介绍： Technology and Health Care is intended to serve as a forum for the presentation of original articles and technical notes, observing rigorous scientific standards. Furthermore, upon invitation, reviews, tutorials, discussion papers and minisymposia are featured. The main focus of THC is related to the overlapping areas of engineering and medicine. The following types of contributions are considered: 1.Original articles: New concepts, procedures and devices associated with the use of technology in medical research and clinical practice are presented to a readership with a widespread background in engineering and/or medicine. In particular, the clinical benefit deriving from the application of engineering methods and devices in clinical medicine should be demonstrated. Typically, full length original contributions have a length of 4000 words, thereby taking duly into account figures and tables. 2.Technical Notes and Short Communications: Technical Notes relate to novel technical developments with relevance for clinical medicine. In Short Communications, clinical applications are shortly described. 3.Both Technical Notes and Short Communications typically have a length of 1500 words. Reviews and Tutorials (upon invitation only): Tutorial and educational articles for persons with a primarily medical background on principles of engineering with particular significance for biomedical applications and vice versa are presented. The Editorial Board is responsible for the selection of topics. 4.Minisymposia (upon invitation only): Under the leadership of a Special Editor, controversial or important issues relating to health care are highlighted and discussed by various authors. 5.Letters to the Editors: Discussions or short statements (not indexed).