在心力衰竭中,左心室储备功能的损伤与保存的喷射分数
Kazuki Kagami1,2, Tomonari Harada1, Naoki Yuasa1
1Department of Cardiovascular Medicine (K.K., T.H., N.Y., H.S., F.M., A.N., Y.T., T.K., H.I., M.O.), Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
Circulation. Cardiovascular imaging
|August 20, 2024
概括
运动期间左心房 (LA) 储库功能受损与心血管储备和心力衰竭中运动能力的减少有关,其中包括保留射出分数 (HFpEF). 这种功能障碍增加了HF事件的风险.
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.
- 心脏衰竭研究研究
背景情况:
- 左心房 (LA) 功能障碍在心力衰竭中普遍存在,心脏衰竭具有保存的射出分数 (HFpEF).
- 关于LA功能储备受损的病理生理影响的数据有限.
研究的目的:
- 研究运动期间异常的LA动态与心血管储备,运动能力和HFpEF患者的临床结果之间的关联.
主要方法:
- 在231名HFpEF患者和219名对照人群中,使用过期气体分析进行了运动应力心电回声学.
- 在休息和运动期间使用斑点跟踪回声心脏成像来评估LA功能.
主要成果:
- 与对照人群相比,HFpEF患者在炼期间的LA水库和助推应变量增加较少.
- 运动LA储备菌株受损与双心室缩储备的减少,心脏输出增加的减少和较低的峰值氧气消耗相关.
- 较低的运动LA储菌株与HF事件的2.7倍增加的风险有关.
- 以指导方针为导向的医学治疗和心房移除改善了LA储和助推应变.
结论:
- 在HFpEF中,运动期间LA储功能受损与双心室储限制和运动不耐受有关.
- 这种损伤与HF事件的风险增加有关.
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