改变血液细胞以检测感染:"单细胞分布宽度"是区分局部和血流感染的关键决定因素
Agostino Ognibene1, Maria Lorubbio1, Sara Montemerani2
1Laboratory Medicine Unit, Azienda AUSL Toscana Sudest, San Donato Hospital, Arezzo, Italy.
概括
单细胞分布宽度 (MDW) 在急诊室 (ED) 有效检测血液感染 (BSI),性能优于前素 (PCT) 和C反应蛋白 (CRP). MDW还可以预测死亡率,帮助早期评估疑似感染的风险.
科学领域:
- 临床诊断 临床诊断 临床诊断
- 发现生物标志物的发现.
- 传染病管理 传染病管理
背景情况:
- 在急诊室 (ED) 早期识别血流感染 (BSI) 是一个挑战.
- 单细胞分布宽度 (MDW) 是一种全新的全血细胞计生物标志物,被评估为诊断和预后效用.
- 评估了疑似感染的患者.
研究的目的:
- 评估MDW的诊断准确性,以检测ED患者的BSI.
- 为了比较MDW的表现与前素 (PCT) 和C反应蛋白 (CRP).
- 评估MDW在住院死亡率的预后价值.
主要方法:
- 一项前性观察队列研究包括608名成年ED患者.
- 患者被分为没有感染,局部感染和BSI组.
- 诊断准确度是使用接收机操作特征 (ROC) 分析来确定的.
主要成果:
- 在BSI检测方面,MDW的准确性很高 (AUC=0.936),显著超过PCT (AUC=0.818) 和CRP (AUC=0.829).
- MDW还准确地区分了局部感染和没有感染 (AUC=0.748).
- 在非幸存者中,MDW是唯一显著升高的生物标志物,表明预后价值.
结论:
- 在ED患者中,MDW是早期发现BSI的高效生物标志物.
- 与PCT和CRP相比,MDW显示出更高的诊断准确性.
- MDW有助于分层感染类型和预测死亡率,对临床决策有价值.
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