基于心电图的评估室内同步在左捆分支区域节奏通过激活序列的特征
Clara Sales-Belles1, Ana Mincholé1,2, Jorge Melero-Polo3,4
1BSICoS Group, Aragon Institute of Engineering Research, IIS Aragón, University of Zaragoza, Zaragoza, Spain.
Scientific reports
|May 4, 2025
概括
与传统的右心室节奏 (RVP) 相比,左捆支部区域节奏 (LBBAP) 提供了更生理的心室激活序列. 新的心电图标志物,如前激活延迟 (pAD),在评估双心室同步方面表现有前途.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗成像医学成像
背景情况:
- 传统的右心室节奏 (RVP) 可以诱导心室失调.
- QRS持续时间 (QRSd) 是评估双心室同步的标准但有限的标志物.
- 左捆支部区域节奏 (LBBAP) 是一种替代的节奏策略,旨在实现更多的生理心室激活.
研究的目的:
- 通过使用12导心电图来描述心室激活序列来评估双心室同步.
- 引入和评估用于双心室同步的新型心电图标记物.
- 为了比较LBBAP和RVP之间的心室激活模式.
主要方法:
- 一项前性单中心研究,涉及176名患有需要植入心脏起器的胸肌病患者.
- 患者被分为LBBAP和RVP组,根据基线QRS形态分类.
- 以低频率为基础的QRS分析被用来计算心室激活序列和心前激活延迟 (pAD). 还计算了QRS持续时间 (QRSd),QRS60和QRS面积 (QRSa).
主要成果:
- 在所有子组中,LBBAP表现出比RVP更具生理节奏的心室激活序列.
- 与RVP组相比,LBBAP组的心前激活延迟 (pAD) 值在LBBAP组显著较低 (p < 0.01).
- 在LBBAP组中,QRS60和QRS区域 (QRSa) 也明显较低 (p < 0.01),表明室内激活更有效.
结论:
- 心前激活延迟 (pAD) 提供了宝贵的洞察力心室激活超越节奏QRS持续时间.
- pAD与QRS60和QRSa一起,是评估双心室同步的一个有前途的工具.
- 与RVP相比,LBBAP促进了更多的生理心室激活,可能改善心脏功能.
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