在人类心房动中,室内特定的壁厚特征在心房动中
Jichao Zhao1, James Kennelly1, Aaqel Nalar1
1Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand.
Interface focus
|December 18, 2023
概括
持续性心房动 (AF) 驱动者具有明显的心房壁厚度 (AWT) 特性. 右心房驱动区域更厚,有更多的AWT变异,而左心房驱动器更薄,指导有针对性的切除策略.
科学领域:
- 心血管研究研究心血管研究
- 医疗成像医学成像
- 电力生理学 电力生理学
背景情况:
- 持续性心房 (AF) 治疗受到缺乏识别患者特异性AF基质的工具的限制.
- 在右心房 (RA) 和左心房 (LA) 两部分的局部驱动器在30-50%的患者中保持持久的AF.
- 房间特异性心房壁厚度 (AWT) 的特征是AF驱动器的基础,尽管AWT的作用已知,但人们对其了解甚少.
研究的目的:
- 提供与AF驾驶员相关的不同RA和LA AWT特征的直接证据.
- 用先进的成像和绘图技术,对人类心房的室内特定AWT特征进行实体分析.
主要方法:
- 冠状动脉穿透的人类心房 (n=7) 接受了节奏诱导的AF和全景近红外光学映射.
- 高分辨率 (170μm3) 9.4 T 加多增强型MRI用于结构成像.
- 3D AWT在整个心房中进行了细分和分析,与已确定的AF驱动器位置相关联.
主要成果:
- 光学映射确定了局部RA驱动器 (n=4个心脏) 和LA驱动器 (n=3个心脏).
- 与没有驱动器的RA相比,带有驱动器的RA显示出更厚的AWT和更大的AWT变化 (p < 0.05). RA驱动区域显著更厚,变化更大 (p < 0.05).
- 有司机的洛杉矶比没有司机的洛杉矶更薄. 与其他LA地区相比,LA驱动区域显著较薄 (p < 0.05).
结论:
- 这项研究表明,室内特定的AWT特征在RA和LA区分了AF驱动区域.
- 右心房驱动区域表现出增加的厚度和AWT可变性,与较薄的左心房驱动区域形成鲜明对比.
- 应考虑对AWT进行患者特异性评估,以制定针对持续性AF的室特异性有针对性的除策略.
关键词:
心房动是心房动的一种.心房壁的厚度 心房壁的厚度心脏节律失常的产生心脏节律失常的产生心脏节律失常的产生心脏节律失常的产生心脏节律失常的产生心脏节律失常的产生心脏节律失常的产生心脏节律失常的产生心脏节律失常的产生心脏节律失常的产生人的心房是人的心房.更多相关视频
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