在严重的急性肺栓塞中,右心室性能的决定因素
Zachary D Demertzis1, Terry R Bowers1, James A Goldstein1
1Department of Cardiovascular Medicine, Corewell Health William Beaumont University Hospital, Royal Oak, Michigan.
概括
严重的急性肺栓塞 (PE) 导致右心室 (RV) 缩功能障碍,影响风险分层和预后. 这项研究确定了急性PE中VR表现的关键决定因素,揭示了显著的VR自由壁运动异常.
科学领域:
- 心脏病学 心脏病学
- 肺部医学 肺部医学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
背景情况:
- 严重的急性肺栓塞 (PE) 会导致血液动力学损害,其特征是右心室 (RV) 衰竭和左心室 (LV) 超动态.
- 在评估急性PE风险,指导临床管理和预测患者结果方面,RV缩功能障碍至关重要.
- 了解影响急性PER表现的因素对于改善患者护理至关重要.
研究的目的:
- 在经历急性肺栓塞 (PE) 导致RV功能障碍的患者中划分RV性能的决定因素.
- 为了将RV静脉缩功能的回声心脏学参数与LV预负荷和腹腔间隔膜运动相关联.
主要方法:
- 一个大批量PE响应小组数据库的回顾性分析.
- 纳入标准:中等高风险或高风险PE患者和护理升级前的心声图.
- 专注于来自大量PE响应团队的单中心数据.
主要成果:
- RV自由壁运动异常与减少的RV缩功能相关 (RV分数面积变化,三环状平面缩外流,S'速度).
- 左心室 (LV) 预负荷和中风体积显著减少,与VR静脉缩功能障碍的严重程度相关.
- RV过载导致了逆向的腹腔间隔膜曲,与RV静缩功能障碍和扩张有很强的相关性.
结论:
- 增加PE的后负载导致严重的RV静脉缩功能障碍,主要是由于RV无壁功能障碍.
- 静脉复缩压的产生和肺间流动取决于静脉复缩心室相互作用,包括隔膜运动.
- 悖论性隔膜运动是急性PE中RV过载和功能障碍的关键指标.
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