一个基于营养指数的预后诺莫图,用于预测在I-III期直肠癌患者的手术后生存率
1Department of Prevention & Healthcare, The First Affiliated Hospital, Army Medical University, Chongqing, China.
Frontiers in nutrition
|September 29, 2025
概括
结合预后营养指数 (PNI) 的新名谱改善了直肠癌生存预测. 该工具将PNI与瘤阶段,CEA水平和血液损失相结合,以获得更好的临床结果.
科学领域:
- 在瘤学瘤学.
- 消化系统恶性瘤消化系统恶性瘤
- 预测生物标志物 预测生物标志物
背景情况:
- 直肠癌 (RC) 的发病率和死亡率很高,预后受到营养状况的重大影响.
- 目前RC的预后模型往往忽视了营养状况的关键作用.
- 需要改进的预后工具,包括营养因素,以更好地管理患者.
研究的目的:
- 开发和验证一种用于直肠癌的新型预后名录.
- 将预后营养指数 (PNI) 整合到直肠癌生存率的预测模型中.
- 为了提高预后预测的准确性,超越传统的分期系统.
主要方法:
- 开发一个包含术前病理性瘤结节转移 (pTNM) 阶段,术前PNI,术前和术后血清CEA水平,以及手术内失血 (IBL) 的名图.
- 统计分析以确定I-III期直肠癌患者生存的独立风险因素.
- 在培训和验证集中使用C指数和曲线下的面积 (AUC) 验证名图的预测性能.
主要成果:
- 术前PNI≤47.15,术前和术后CEA升高,显著IBL (>130毫升) 和晚期pTNM阶段被确定为低生存率的独立风险因素.
- 纳入PNI的诺姆图表表现出优异的预测性能,C指数为0.721,而非PNI诺姆图表为0.710和pTNM分期为0.636.
- 在训练和验证队列中,名图表在1,3年和5年总生存预测中实现了高AUC值.
结论:
- 纳入PNI的诺米图为预测直肠癌患者的结果提供了更准确和更全面的工具.
- 该模型显著改进了现有的预后方法,提供了有价值的临床适用性.
- 通过PNI整合营养状况可以提高直肠癌预后模型的预测能力.
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