在心力衰竭患者中随着轻微减少的喷射小部分的增量运动期间,左心房功能的急性变化:一项病例对照研究
Marco Alfonso Perrone1, Ferdinando Iellamo1, Valentino D'Antoni2
1Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, 00133 Rome, Italy.
Journal of personalized medicine
|August 25, 2023
概括
患有轻微减少喷射分数 (HFmrEF) 的心力衰竭患者在运动期间保持左心房 (LA) 功能. 这种适应有助于在体力运动期间保持中风体积 (SV).
科学领域:
- 心脏病学 心脏病学
- 运动生理学 运动生理学
- 心脏成像 - - 心脏成像
背景情况:
- 轻微减少喷射分数 (HFmrEF) 的心力衰竭会影响心脏功能.
- 左心房 (LA) 功能在运动期间的HFmrEF中的作用尚未完全理解.
- 在有氧运动期间评估LA功能的急性变化对于理解HFmrEF病理生理学至关重要.
研究的目的:
- 在增量有氧运动期间评估左心室 (LA) 功能急性变化.
- 为了比较HFmrEF患者与健康受试者 (HS) 的LA功能变化.
- 为了研究LA功能的贡献,在运动期间在HFmrEF中维持中风体积 (SV).
主要方法:
- 对比了20名HFmrEF患者与10名年龄匹配的HS.
- 试验对象在循环人体计上进行了逐步的运动测试.
- 心声学评估了休息时的LA功能,在次最大运动,峰值运动和恢复期间.
主要成果:
- 与HS不同的是,HFmrEF患者在运动的高峰时显示出保留的顶峰心房纵向应变 (PALS) 和导管应变,与HS不同.
- 冲击体积 (SV) 在HFmrEF保持不变,但在峰值运动时在HS下降.
- 心率和缩血压在HS中比HFmrEF增加了更多.
结论:
- 患有HFmrEF的患者在增量有氧运动期间表现出有效的左心房 (LA) 储水池功能.
- 这种增强的LA功能有助于在体力炼期间保持中风体积 (SV).
- 这些发现突出了HFmrEF的适应机制,有助于提高运动能力.
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