血费里水平,发生性心力衰竭以及心脏结构和功能:ARIC研究
Iman A F Aboelsaad1, Brian L Claggett1, Victoria Arthur1
1Brigham and Women's Hospital, Boston, Massachusetts, USA.
JACC. Heart failure
|January 11, 2024
概括
低水平的铁缺乏症,以低血费里为标志,增加了老年人患心力衰竭 (HF) 的风险,特别是心力衰竭与保留射出分数 (HFpEF) 的风险. 这一发现强调了铁在心血管健康中的重要性.
科学领域:
- 心脏病学 心脏病学
- 内部医学 内部医学
- 营养科学 营养科学
背景情况:
- 缺铁是普遍存在和可治疗的,但其在心力衰竭 (HF) 发展中的作用尚未完全理解.
- 了解铁状况与心脏功能障碍之间的联系对于公共卫生和治疗策略至关重要.
研究的目的:
- 调查血费里丁水平与老年人心力衰竭 (HF) 发生率之间的关联.
- 检查费里与特定的HF表型 (HFpEF,HFrEF) 和心脏功能之间的关系.
主要方法:
- 对社区动脉样硬化风险研究 (ARIC) 数据的分析,其中包括3,472名没有先前HF或贫血的参与者.
- 利用考克斯的比例危险和线性回归模型来评估血费里丁和发生的HF之间的关联,HF表型和心声回声测量.
主要成果:
- 较低的血费里丁水平与整体发生性HF (HR: 1.20) 和发生性HF与保留喷射分数 (HFpEF) (HR: 1.28) 的风险增加有显著关联.
- 较低的费里和发生的HF与减少喷射分数 (HFrEF) 之间没有发现显著的关联.
- 较低的费里丁与较高的E/e'比率和肺动脉静脉压相关,表明左心室填充压力增加.
结论:
- 在没有先前存在的HF或贫血的老年人中,血费里丁降低是发展心力衰竭的危险因素,特别是HFpEF.
- 下部铁储存与左心室填充压力升高有关,这表明它在扩张功能障碍中起作用.
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