周部署右心室节奏ECG在左束区域节奏节奏中的作用
Wen-De Tang1, Chiung-Ray Lu1, Mei-Yao Wu2
1Division of Cardiovascular Medicine, Department of Internal Medicine, China Medical University and Hospital, Taichung, Taiwan.
Frontiers in cardiovascular medicine
|September 26, 2025
概括
期间部署的ECG有效地指导左捆区域节奏 (LBBAP) 领先位置,减少QRS持续时间和增强左心室激活. 这种方法优化节奏,以改善心脏功能.
科学领域:
- 心脏病学和电生理学.
- 医疗器械技术 医疗器械技术
- 心脏节拍是因为心脏节拍.
背景情况:
- 左捆区域节奏 (LBBAP) 是一种带有植入挑战的生理节奏方法.
- 目前用于LBBAP位的解剖学方法可以导致极性和QRS持续时间的变化.
- 在解剖学LBBAP中,广泛的目标区域可能会导致不一致的节奏结果.
研究的目的:
- 评估周部署心电图 (ECG) 在指导LBBAP时的有效性.
- 确定周部署心电图是否可以在LBBAP期间优化左心室激活.
- 识别与成功的LBBAP和改善心室激活相关的ECG标记物.
主要方法:
- 在2020年9月至2021年6月期间对41名患者 (54次LBBAP尝试) 的回顾性分析.
- 收集和分析人口统计数据,基线心电图,过程内心电图和心室电图.
- 对QRS模式的分类和极性分析,探索实现QRS持续时间<120毫秒的标记.
主要成果:
- 在81.5%的尝试中取得了成功的LBBAP,并显著减少了节奏QRS持续时间 (144.5到128.8毫秒).
- 在部署后观察到极性得分的显著变化,表明的最佳定位.
- 部署后QRSd <120毫秒的小组显示左心室激活时间 (LVAT) 显著缩短 (68.7对98.4毫秒).
结论:
- 周期部署心电图评估是基于解剖学的LBBAP实时领先定位的宝贵补充.
- 特定的ECG轴变化可以指导在LBBAP期间选择左捆分支.
- 较低的部署前节奏QRSd和LVAT,以及部署后的特定极性,与更窄的QRS持续时间相关.
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