在损伤指数引导的肺静脉隔离中对阻抗和振幅变化的评估和比较
Yutaro Kaneko1, Yoshihisa Naruse1, Taro Narumi1
1Division of Cardiology, Department of Internal Medicine III Hamamatsu University School of Medicine Hamamatsu Japan.
Journal of arrhythmia
|February 9, 2024
概括
病变指数 (LSI) 有效指导用于肺静脉隔离 (PVI) 的射频导管切除. LSI与传统的阻抗下降和振幅降低相关,确保有效的损伤形成.
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:
- 病变指数 (LSI) 用于评估射频导管切除病变.
- 传统的参数,如阻抗下降和双极振幅下降,不包括在LSI计算中.
- 本研究研究了LSI与这些传统参数之间的关系.
研究的目的:
- 评估射频导管切除中损伤指数 (LSI) 和传统参数 (阻抗下降,双极振幅) 之间的关联.
- 为了确定LSI引导的肺静脉隔离 (PVI) 是否导致有效的病变形成.
主要方法:
- 追溯分析了31名患者的1355个废除点,这些患者使用TactiCath接受了LSI引导的PVI.
- 由阻抗下降 (<10 Ω,10-20 Ω,>20 Ω) 分类的切除点.
- 在鼻腔节奏期间分析772个点,寻找双极幅度变化.
主要成果:
- 在86.9%的点数中实现了LSI目标.
- 阻抗下降>10 Ω和振幅降低>50%分别在95%和82%的点实现.
- 在阻抗组之间观察到的前剥离参数,功率,LSI,接触力和间接距离的显著差异.
结论:
- 由LSI引导的PVI似乎有效地创造了足够的废除病变.
- 该研究支持与阻抗和振幅变化等常规参数结合LSI的实用性.
- 没有报告任何重大并发症,这表明手术是安全的.
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