使用数字双胞胎对右心房持续性心房动失常发生的评估
Kensuke Sakata1, Carolyna A P Yamamoto2, Syed Yusuf Ali2
1Alliance for Cardiovascular Diagnostic and Treatment Innovation, Johns Hopkins University, Baltimore.
Heart rhythm
|November 2, 2025
概括
持续性心房动 (PsAF) 治疗可能需要针对右心房 (RA). 数字双胞胎揭示了RA对PsAF心律失常产生同样贡献肺静脉隔离后 (PVI),类似于左心室 (LA).
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 计算医学是一种计算医学.
背景情况:
- 肺静脉隔离 (PVI) 是心房动 (AF) 的标准,但由于纤维化而导致的持续性AF (PsAF) 的效果较低.
- 目前的疗法侧重于左心房 (LA),可能忽视了右心房 (RA) 在PsAF中的作用.
- 在PsAF中,由炎症驱动的重塑会影响两个心房,但RA心律失常仍然未得到充分研究.
研究的目的:
- 调查PVI后PsAF中RA与LA之间的心律失常的贡献.
- 为了利用个性化的数字双胞胎 (DTs) 进行非侵入性表征PsAF心律发育.
- 在PVI后的LA和RA之间进行PsAF心律失常的机制性比较.
主要方法:
- 从61名PsAF患者的MRI数据中构建了结合纤维化的双心房DTs.
- 在DT中模拟PVI和快速节奏,以确定旋转器支位置 (LRs).
- 分析并比较了LA和RA之间的LRs的纤维和电生理特征.
主要成果:
- 在46个DTs中识别了PVI病变之外的169个LR,其中66%位于RA中.
- 与LA-LR相比,RA-LRs显示出较高的纤维化率.
- 纤维化密度,和电压在RA-LRs与LA-LRs相似;年龄独立地预测了RA心律失常.
结论:
- 关节炎对PVI后的PsAF心律失常有显著的贡献,其特征与LA相似.
- 数字双胞胎分析强调了RA在PVI后的PsAF维护中的同等作用.
- 针对 RA 律律失常可能是改善 PsAF 管理结果的关键.
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