通过马尔科夫决策过程进行标准化的ICU创伤复苏
Larry D Preuett1, Blake E Murphy2, Catherine Beni3
1Center for Data Science, University of Washington Tacoma, Tacoma, WA, USA.
Shock (Augusta, Ga.)
|October 30, 2025
概括
这项研究开发了用于创伤复苏的马尔科夫决策过程 (MDP),使用强化学习 (RL) 引导流体和血管压缩剂的使用. 与标准临床实践相比,RL模型显示了血管压缩剂建议的差异.
科学领域:
- 关键护理医学 关键护理医学
- 计算生物学 计算生物学
- 创伤外科 手术 创伤外科
背景情况:
- 对创伤患者的血静后复苏指南有限.
- 重症监护室 (ICU) 的创伤复苏涉及复杂的液体和血管压缩器决策.
- 马尔科夫决策过程 (MDP) 框架可以模拟重症监护中的顺序决策.
研究的目的:
- 定义一个可解释的MDP,用于ICU创伤复苏.
- 评估基于MDP的方法在支持临床决策方面的潜力.
- 为创伤复苏适应败血症护理框架.
主要方法:
- 成年创伤患者 (2012-2019) 乳酸≥2mmol/L的回顾性观察性研究.
- 作为一个MDP的框架复苏专注于静脉注射液体 (IVF) 和血管压缩剂的管理.
- 训练了一个强化学习 (RL) 代理人来推治疗方法,并将其政策与观察到的临床实践进行了比较.
主要成果:
- 包括4305名患者;70%达到复苏终点.
- 学习的RL政策与临床实践保持一致,但在血管压缩剂的使用方面有显著差异 (减少上腺素,增加血管压缩剂).
- 线下评估表明RL政策表现不佳,与败血症研究一致.
结论:
- 为创伤复苏建立了一个临床基础的MDP框架.
- 强化学习 (RL) 可以在重症监护环境中追溯应用.
- 该研究验证了MDP在创伤中的相关性,证明了RL的可行性,并为决策支持提供了基础.
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