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血清PCT、CRP和IL-6联合检测对细菌性血流感染早期诊断价值 被引量:50

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摘要 目的:探讨联合检测降钙素原(PCT),C反应蛋白(CRP)和IL-6对细菌性血流感染(BSI)早期诊断的价值,为辅助临床诊断BSI提供较快捷的检测指标。方法:分析2015年1-6月间疑为BSI的住院患者296例,均为入院后首次送检血培养并同时检测PCT、CRP和IL-6。按结果将患者分为血培养阳性组和血培养阴性组,比较两组中PCT、CRP和IL-6的水平变化,并绘制ROC曲线评价各指标的诊断价值。将三者联合检测与诊断价值较高指标的灵敏度和特异度进行比较。结果:107例患者的血培养为阳性,189例患者的血培养为阴性。血培养阳性组患者的PCT、CRP和IL-6水平显著高于血培养阴性组,秩和检验得出差异具有统计学意义(P<0.05)。IL-6的AUC为0.808,大于PCT(AUC=0.721)和CRP(AUC=0.689),差异具有统计学意义(P<0.05)。PCT、CRP和IL-6诊断细菌性BSI的敏感度和特异度分别为86.6%和75.2%,96.8%和82.9%,78.8%和16.8%,三者联合检测后敏感度、特异度、阳性预测率和阴性预测率分别为97.2%,90.1%,87.4%,100.0%,与单独检测相比,差异有统计学意义(P<0.05)。作为排除标准,3项指标均为阴性时,特异度高达100%。结论:联合检测PCT、CRP及IL-6可为临床早期预测细菌性BSI提供更便捷、可靠的诊断指标。
出处 《实用医学杂志》 CAS 北大核心 2016年第18期3075-3077,共3页 The Journal of Practical Medicine
基金 徐州市科技局社会发展项目基金资助项目(编号:KC14SH105)
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