Introduction of the Low Voltage Bridge Mapping for the AVNRT RF Ablation in Children - Early Follow-Up Results.

IF 2.3 3区 医学 Q2 CARDIAC & CARDIOVASCULAR SYSTEMS
Tomasz M Książczyk, Radosław Pietrzak, Klaudia Obsznajczyk, Magda Franke, Bożena Werner
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引用次数: 0

Abstract

Background: Low voltage bridge mapping (LVBM) is an approach to atrio-ventricular nodal reentry tachycardia (AVNRT) ablation that has been postulated to facilitate the procedure. In our center, AVNRT ablations were performed with the traditional radio frequency current (RF) current approach using the CARTO mapping system. The use of LVBM in children has been well described with cryoablation but not with RF. LVBM was introduced in our center in April 2023 and is now routinely used for all AVNRT RF ablations. The aim of this study was to analyze how the introduction of the LVBM influenced the results of the pediatric AVNRT ablations using the RF current.

Methods: We analyzed all AVNRT ablations performed between January 1, 2019 and June 30, 2024, and compared traditional and LVBM approaches.

Results: The study group (LVBM) consisted of 40 and the control group of 61 children. Both groups did not differ significantly regarding age, body weight, and sex distribution. In the LVBM group, the total time of RF applications was significantly shorter (median of 120 s vs 191 s) and the number of RF applications was smaller than in the control group (median of: 4.5 vs 8). Total procedural time did not differ significantly between the groups. The success rate at 3 months follow-up was higher in the LVBM (92% vs 85%) group but failed to differ statistically. No complications were reported in either of groups.

Conclusions: The introduction of the LVBM in RF AVNRT ablations in children allows for limiting the number and time of RF applications required, without prolonging the total procedure time. Our experience shows LVBM can also be effectively used in RF ablations of AVNRT.

儿童AVNRT射频消融的低压电桥定位-早期随访结果介绍。
背景:低压电桥映射(LVBM)是房室结型再入性心动过速(AVNRT)消融的一种方法,已被假定为促进手术。在我们的中心,使用传统的射频电流(RF)电流方法使用CARTO制图系统进行AVNRT消融。LVBM在儿童中的应用在冷冻消融术中有很好的描述,但在射频治疗中没有。LVBM于2023年4月引入我中心,目前已常规用于所有AVNRT射频消融。本研究的目的是分析LVBM的引入如何影响使用RF电流的儿科AVNRT消融的结果。方法:我们分析了2019年1月1日至2024年6月30日期间所有AVNRT消融,并比较了传统方法和LVBM方法。结果:研究组(LVBM) 40例,对照组61例。两组在年龄、体重和性别分布方面没有显著差异。在LVBM组中,射频应用的总时间明显短于对照组(中位数为120秒vs 191秒),射频应用的次数也少于对照组(中位数为4.5秒vs 8秒)。两组之间的总手术时间无显著差异。3个月随访时LVBM组的成功率更高(92% vs 85%),但没有统计学差异。两组均无并发症发生。结论:在儿童射频AVNRT消融中引入LVBM可以限制射频应用所需的次数和时间,而不会延长总手术时间。我们的经验表明LVBM也可以有效地用于AVNRT的射频消融。
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来源期刊
CiteScore
5.20
自引率
14.80%
发文量
433
审稿时长
3-6 weeks
期刊介绍: Journal of Cardiovascular Electrophysiology (JCE) keeps its readership well informed of the latest developments in the study and management of arrhythmic disorders. Edited by Bradley P. Knight, M.D., and a distinguished international editorial board, JCE is the leading journal devoted to the study of the electrophysiology of the heart.
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