预后营养指数作为预测败血症相关脑病的预后的新型生物标志物:一个多中心回顾性队列研究
Lina Zhao1, Chao Qi1,2, Qinghe Yan1
1Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, China, tjmugh.com.cn.
Emergency medicine international
|January 12, 2026
概括
预后营养指数 (PNI) 是败血症相关脑病变 (SAE) 死亡率的重要预测指标. 较低的PNI分数 (<34) 表明SAE患者的死亡风险较高,神经功能较差.
科学领域:
- 关键护理医学 关键护理医学
- 神经学 神经学
- 营养生物标志物 营养生物标志物
背景情况:
- 败血症相关脑病变 (SAE) 是一个重大的临床挑战,死亡率高.
- 现有的SAE预后生物标志物有限,需要探索新的指标.
- 预后营养指数 (PNI) 已成为各种临床结果的潜在标志物.
研究的目的:
- 在患有败血症相关脑病变 (SAE) 的患者中调查预后营养指数 (PNI) 的预后价值.
- 确定PNI水平与SAE患者28天全因死亡率之间的关联.
- 确定一个最佳的PNI值来预测SAE中的死亡率和神经功能.
主要方法:
- 一项多中心队列研究,涉及3202名SAE患者 (2008-2019).
- 统计分析包括多变量后勤回归,倾向得分匹配,反向概率加权,通用添加模型 (GAM),卡普兰-梅尔和ROC分析.
- 进行了外部验证以确认这些发现.
主要成果:
- 该PNI独立预测了SAE患者的28天死亡率 (调整后OR:0.85;95%CI:0.77-0.93).
- 确定PNI值<34为最佳值,低于这个值的患者的28天死亡率显著更高.
- 通过ROC分析观察到强烈的歧视 (AUC=0.879在原始,AUC=0.724在验证队列),更高的PNI与更好的神经功能相关 (GCS,p <0.001).
结论:
- 已确定PNI是败血症相关脑病变28天死亡率的独立预测指标.
- 具有PNI<34的SAE患者显示死亡风险显著增加,神经结果更差.
- 在SAE中,PNI作为一种有价值的预后生物标志物,用于分层风险和指导管理.
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