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洞察接触力局部阻抗技术,用于预测有效的肺静脉隔离

Antoine Lepillier¹, Ruggero Maggio², Valerio De Sanctis³

¹Centre Cardiologique du Nord, Saint-Denis, France.

Frontiers in cardiovascular medicine

|July 21, 2023

概括

在心房动 (AF) 剥离过程中高度局部阻抗 (LI) 的下降预测了成功的病变创建. 最佳的LI下降值因解剖部位而异,将其与良好的接触力结合起来可以减少射频传输时间.

科学领域:

心脏病学心脏病学
电子生理学电子生理学
医疗器械医疗器械

背景情况:

在心房动 (AF) 剥离过程中高局部阻抗 (LI) 测量显示出预测持久损伤的可能性.
了解影响LI导向切除的程序参数对于优化结果至关重要.

研究的目的:

在一个大型的多中心注册表中收集影响LI导向切除的程序参数的数据.
为了确定LI下降值预测成功的肺静脉 (PV) 隔离.

主要方法:

在CHARISMA注册表中分析了13,891个来自212名患者的射频 (RF) 应用,这些患者首次接受了针对AF的PV隔离.
评估LI和LI下降在成功的废除地点与PV缺口地点.
接收器操作特征 (ROC) 曲线分析以确定最佳的LI下降值.

主要成果:

与PV缺口部位相比,成功切除部位的基线LI和LI下降显著更高 (p < 0.0001).
成功切除的最佳LI下降值在前部位>21 Ω,后部位>18 Ω.
在LI下降和接触力 (CF) 之间发现了非线性关联,而两者与射频传递时间 (DT) 相反相关.

结论:

>21 Ω (前部) 和>18 Ω (后部) 的LI下降值预测AF手术期间的成功切除.
更高的CF与实现理想LI下降的可能性更大相关.
将适当的LI下降与良好的CF相结合,可以显著减少射频传输时间,从而提高程序效率和安全性.

关键词:

心房动是心房动的一种.导管切除导管切除导管切除导管切除接触力是一种接触力.创伤形成的形成.在本地阻抗阻抗.肺静脉隔离肺静脉隔离

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