左心室透静功能的预后重要性在初级心肌吐中及其与CMR结构变化的关系
Hossam Lababidi1, Kinan Carlos El-Tallawi1, Danai Kitkungvan1
1Methodist DeBakey Heart and Vascular Center, 6550 Fannin, SM-1801, Houston, TX, 77030, USA.
Scientific reports
|October 8, 2025
概括
初级额头回 (MR) 中的透支功能障碍 (DD) 与心脏结构和更糟糕的结果有关. 新的DD得分提高了对这些患者不良事件的预测.
科学领域:
- 心脏病学 心脏病学
- 心脏成像 - - 心脏成像
- 心脏衰竭研究研究
背景情况:
- 显著的初级额头吐 (MR) 可以导致左心室 (LV) 扩张功能障碍 (DD).
- 了解MR中DD的结构因素和预后影响对于患者管理至关重要.
研究的目的:
- 在患有初级心肌吐 (MR) 的患者中,研究腹功能障碍 (DD) 的左心室结构相关物.
- 为了确定DD在这个患者群体中的预后意义.
主要方法:
- 心声图和心磁共振扫描 (CMR) 对中度至重度初级MR患者进行了扫描.
- CMR评估了LV体积,射出分数 (EF),MR体积/分数,痕和细胞外体积 (ECV).
- 使用心声回声学评估了 LV 扩张功能 (DF),并计算了 DF 评分.
主要成果:
- 与没有DD的患者相比,DD患者的MR体积和ECV显著更高.
- 在DD患者中,事件发生率 (心力衰竭住院,心血管死亡或心心膜手术) 较高.
- 将DF得分纳入多变量模型改善了预测不良结果的曲线下面积 (AUC) 从0.83到0.86.
结论:
- 在初级额叶吐 (MR) 中,透支功能障碍 (DD) 与细胞外体积 (ECV) 的增加,MR的严重程度和不良临床结果有关.
- 当与临床因素和LV体积相结合时,计算的DD得分为预测不良结果提供了增量预后价值.
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