单细胞分布宽度作为预测细菌病的生物标志物:急诊室的回顾性研究
Tse-Hao Chen1,2,3,4, Yu-Jang Su1,2,5, Wei-Hsiang Liao1,3,4
1Department of Emergency Medicine, MacKay Memorial Hospital, Taipei 104217, Taiwan.
Life (Basel, Switzerland)
|January 28, 2026
概括
单细胞分布宽度 (MDW) 是在急诊室检测细菌病的快速生物标志物. 将MDW与中性粒细胞与淋巴细胞比率 (NLR) 结合起来,进一步提高了细菌感染的诊断准确性.
科学领域:
- 临床诊断 临床诊断 临床诊断
- 血液学 血液学 血液学
- 传染病生物标志物 传染病生物标志物
背景情况:
- 血液培养是细菌病诊断的黄金标准,但有很长的周转时间.
- 细菌病的延迟诊断可能会阻碍及时的抗菌药物治疗.
- 需要快速,可访问的生物标志物,以便在急诊室早期检测细菌病.
研究的目的:
- 评估单细胞分布宽度 (MDW) 作为细菌病的快速生物标志物.
- 将MDW的诊断性能与已知的标记物如C反应蛋白 (CRP) 和中性粒细胞与淋巴细胞比率 (NLR) 进行比较.
- 评估组合生物标志物模型对改善细菌病检测的有用性.
主要方法:
- 对成年急诊室患者的回顾性分析,包括MDW,白细胞计数 (WBC),CRP和NLR的完整数据.
- 用接收器运行特征曲线 (AUROC) 下的面积来评估歧视.
- 计算了灵敏度,特异性,诊断几率比 (DOR),净重新分类改进 (NRI) 和综合歧视改进 (IDI).
主要成果:
- 在19325名患者中,10.4%的血液培养物呈阳性.
- 与CRP (0.730),NLR (0.695) 和WBC (0.642) 相比,MDW显示了最高的AUROC (0.760).
- 结合的MDW+NLR模型显示出优异的性能 (AUROC 0.785; DOR 6.39).
结论:
- MDW是一种快速有效的生物标志物,用于在急诊室识别细菌病.
- 将MDW与NLR结合起来可以提高细菌病的诊断性能.
- MDW提供了一个有前途的替代品或传统血液培养的辅助,用于早期检测败血症.
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