左心房水库应变作为左心室填充压力的预测因子,在患有鼻节律的患者
Minkwan Kim1, Ji Woong Roh1, Nak-Hoon Son2
1Division of Cardiology, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Gyeonggi-do, Republic of Korea.
Scientific reports
|October 16, 2025
概括
左心房储压力 (LASr) 有效地预测左心室 (LV) 填充压力,优于传统措施. 这种心声回声标记可以改善心力衰竭的诊断,特别是在未确定的情况下.
科学领域:
- 心脏病学 心脏病学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
- 心血管生理学心血管生理学
背景情况:
- 升高的左心室 (LV) 填充压力对于诊断心力衰竭与保留喷射分数 (HFpEF) 是至关重要的.
- 精确的,非侵入性评估LV填充压力仍然具有挑战性,通常需要侵入性导管.
- 左心房储压力 (LASr) 是一种反映心房功能的新型心声学参数.
研究的目的:
- 评估LASr对入侵性LV填充压力的预测效用,在患有鼻节律的患者中.
- 为了比较LASr的性能与传统的措施,如LV末端透气压 (LVEDP).
- 评估LASr在完善HFpEF诊断中的作用,特别是在HFA-PEFF框架内.
主要方法:
- 这是一项前性研究,涉及365名接受LV导管治疗的患者.
- 收集的侵入性LV填充压力 (心房前收缩压力,LVEDP).
- 在24小时内进行横心心回声检查以测量LASr,但不包括心律不整或急性冠状动脉综合征的患者.
主要成果:
- 在预测特定切线时,LASr对预测高高的LV前A压力 (AUC 0.754) 和LVEDP (AUC 0.655) 进行了良好的区分.
- 在预测升高的LV前A压力方面,LASr显著超过LVEDP (p=0.021).
- 将LASr纳入HFA-PEFF模型改善了诊断性能 (NRI 0.404,p=0.032) 并准确地重新分类了具有不确定的扩张功能的患者.
结论:
- LASr是LV填充压力,特别是LV预A压力的独立预测器.
- 与LVEDP相比,LASr在评估透支功能障碍方面提供了更高的诊断准确性.
- 使用LASr可以提高心力衰竭的非侵入性诊断,特别是HFpEF.
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