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在HFpEF中,RDW与白蛋白比率与死亡率之间的关联:基于MIMIC-IV和外部验证的回顾性研究
Zhen Wang1, Ting-Ting Fan1, Meng-Li Li1
1Department of Cardiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
Frontiers in nutrition
|February 2, 2026
概括
红细胞分布宽度与白蛋白比率 (RDW/Alb) 是重症监护室 (ICU) 患有心力衰竭与保留射出分数 (HFpEF) 患者死亡率的强有力的预测指标. 这种简单的标志物表现优于其他指数,有助于HFpEF患者早期风险分层.
科学领域:
- 心脏病学 心脏病学
- 关键护理医学 关键护理医学
- 生物标志物研究 生物标志物研究
背景情况:
- 在ICU中,心力衰竭与保存的喷射分数 (HFpEF) 与高死亡率有关.
- 在ICU中对HFpEF的可靠床边预后标志物有限.
- 红细胞分布宽度与白蛋白比率 (RDW/Alb) 在这种重症监护环境中没有得到验证.
研究的目的:
- 为了验证红细胞分布宽度与白蛋白比率 (RDW/Alb) 作为重症监护室 (ICU) 患有心力衰竭与保留射出小部分 (HFpEF) 的患者的预后标记.
- 为了将RDW/Alb的预后性能与甘油三糖 (TyG) 指数进行比较.
主要方法:
- 使用成人HFpEF患者的MIMIC-IV数据库进行回顾性队列研究.
- 在ICU入院后24小时内测量RDW和血清白蛋白,以计算RDW/Alb.
- 用于分析的卡普兰-梅尔曲线,多变量考克斯回归和受限制的立方线.
- 在HFpEF患者的单独队列中进行外部验证.
主要成果:
- 死亡率逐步增加,在30日,90日和365日,RDW/Alb三角动物的死亡率较高.
- 每个RDW/Alb单位的增加都与死亡危险比率显著上升有关.
- 与TyG指数相比,RDW/Alb显示出更好的预后歧视.
- 外部验证证实RDW/Alb是死亡率的重要预测因素.
结论:
- RDW/Alb比率是一个简单的,可访问的,强大的预测HFpEF的ICU患者的死亡率.
- 在这种患者群体的风险分层方面,RDW/Alb的表现优于TyG指数.
- 这种标志物支持其在重症患者HFpEF早期预后评估中的有用性.
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