左心房张力率:血液动力学上显著的冠状动脉狭窄的标志?
Egle Rumbinaite1, Dovydas Verikas1,2, Arnas Karuzas1,2
1Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, 50161, Lithuania.
Future cardiology
|June 1, 2023
概括
在 dobutamine 压力回声心电图期间的左心房应变率可以帮助识别冠状动脉疾病. 较低的早期扩张性应变率 (LAe SR) 表明,在疑似冠状动脉疾病 (CAD) 的患者中,冠状动脉狭窄显著.
科学领域:
- 心脏病学 心脏病学
- 诊断成像 诊断成像 诊断成像
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
背景情况:
- 冠状动脉疾病 (CAD) 的诊断通常依赖于侵入性手术.
- 评估心肌缺血的非侵入性方法对于患者管理至关重要.
- 左心房功能越来越被认为是心血管健康的指标.
研究的目的:
- 评估左心房变形参数的诊断实用性.
- 为了预测显著的冠状动脉狭窄,使用多布胺应激心声学 (DSE).
- 为了评估患有中度预测CAD概率的患者.
主要方法:
- 在61名患者身上进行了多布胺应激心声学 (DSE).
- 对左心房变形参数的评估,包括早期透析应变率 (LAe SR).
- 患者分为病理 (有CAD) 和非病理组.
主要成果:
- 在病理组中观察到较低的LAe SR在高剂量的dobutamine中.
- 接收器操作特征 (ROC) 曲线分析确定了LAe SR (-2.05) 的预后值.
- 该值显示了78%的灵敏度和50%的特异性 (AUC 0.638,p=0.026).
结论:
- 左心房早期透气应变率 (LAe SR) 对显著的冠状动脉狭窄有预测价值.
- 在评估心肌缺血时,LAe SR可以作为一个有价值的非侵入性参数.
- 这个参数可以帮助诊断怀疑CAD的患者.
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