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视觉化电生理学定义的上静脉卡瓦-右心房交叉点,使用心房外刺激进行高分辨率映射

Masahiro Ishikura¹, Yoshiaki Kawase¹, Taiji Miyake¹

¹Department of Cardiology, Gifu Heart Center, Gifu, Japan.

Journal of cardiovascular electrophysiology

|March 26, 2025

概括

使用心房外刺激节奏的高分辨率映射可以改善对上 vena cava-右心房交叉点的可视化. 这种技术可以提高上静脉隔离和鼻结局部化的有效性.

科学领域:

电力生理学电力生理学
绘制心脏地图是指绘制心脏地图.
耳前心律失常症耳前心律失常症

背景情况:

在上 vena cava (SVC) -右心房 (RA) 交叉处的对角导电阻塞线对于SVC隔离 (SVCI) 非常有用.
这些区块线不经常被观察到,需要使用替代的隔离策略.

研究的目的:

使用高分辨率映射与心房外刺激节奏来可视化SVC-RA交叉点.
为了比较在鼻节奏期间的可视化与外刺激节奏.

主要方法:

25名患者接受了高分辨率的3D绘图 (CARTO 3).
在鼻腔节律 (鼻腔图) 和心房外刺激节奏 (S2图) 期间进行了映射.
评估了缓慢导电或阻塞线,并将地图类型进行比较.

主要成果:

S2映射显示了比Sinus映射 (35.6毫米) 显著更长的慢/块线 (52.5毫米).
在S2映射过程中,在所有患者中都观察到覆盖超过一半交叉点的缓慢/阻塞线.
鼻腔节点始终位于可视化线的下方.

结论:

使用心房外刺激节奏的高分辨率映射增强了SVC-RA交叉点可视化.
这种改进的可视化可能会导致更有效的SVCI和节局部化.

关键词:

剥离剥离剥离剥离心房动是心房动的一种.高分辨率地图绘制.上层 vena cava 静脉静脉静脉是一个上 vena cava 隔离隔离隔离隔离隔离

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