早期的动脉乳糖轨迹和严重心力衰竭的死亡风险:一个双队列轨迹分析
Peng-Fei Wang1, Cheng-Jian Guan1, Qian Chen2
1Department of Cardiology, The Second Hospital of Hebei Medical University, No.215 Heping West Road, Xinhua District, Shijiazhuang, 050000, People's Republic of China.
Scientific reports
|December 3, 2025
概括
在急性心力衰竭 (HF) 患者中随着时间的推移分析乳酸水平,揭示了不同的模式. 这些乳酸轨迹,而不仅仅是单次测量,显著预测死亡风险,为患者护理提供了更好的见解.
科学领域:
- 关键护理医学 关键护理医学
- 心脏病学 心脏病学
- 生物标志物 生物标志物
背景情况:
- 乳酸是关键的生物标志物,用于组织低 perfusion 和严重心力衰竭 (HF) 患者的疾病严重程度.
- 虽然静态乳酸盐水平提供预后价值,但随着时间的推移,动态乳酸盐的变化可能会对代谢应激和临床结果提供更深入的见解.
- 乳糖轨迹在HF群体中的预后效用还不清楚.
研究的目的:
- 在重症监护室 (ICU) 入院的HF患者中识别出明显的早期动脉乳酸轨迹.
- 评估这些乳酸模式与住院,28天和1年死亡率的关联.
- 在外部验证发现并确认关联的稳定性.
主要方法:
- 使用MIMIC-IV和MIMIC-III数据库进行的回顾性队列研究 (共n=6,167名HF患者).
- 隐藏类混合模型用于对72小时动脉乳酸盐模式进行分类.
- 多变量后勤和考克斯回归模型评估了与死亡率的关联;进行了外部验证.
主要成果:
- 确定了三个不同的乳酸轨迹类别:低稳定 (86.4%),早期上升/延迟下降 (4.1%),以及早期下降/重新升高 (9.6%).
- "早期上升/延迟下降" (第2类) 和"早期下降/重新上升" (第3类) 两种轨迹独立地与与低稳定类 (第1类) 相比,显著更高的住院,28天和1年死亡率有关.
- 观察到一个一致的死亡风险梯度 (Class 2>Class 3>Class 1) 跨队列和验证.
结论:
- 早期的动脉乳酸轨迹独立地与重症肝炎患者的死亡率有关.
- 基于轨迹的分析提供了比单独初始乳酸值更细致的预后洞察力.
- 这些发现可能会为HF患者的早期风险分层和ICU决策提供信息.
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