血清降钙素源和超敏C反应蛋白在新生儿感染性疾病早期诊断中的应用

[目的]探讨PCT在新生儿感染性疾病早期诊断中的应用价值。[方法]对某院收治的70例疑似新生儿感染患儿进行降钙素源(PCT)和超敏C反应蛋白(hs-CRP)测定,并以血培养结果为诊断感染的金标准,分析PCT、hs-CRP的灵敏度、特异度和阳性预测值。[结果]重症组、局部组和对照组的PCT阳性率分别为87.5%、63.2%和14.0%,3组间两两比较差异均有统计学意义(P﹤0.01);细菌组、非细菌组的PCT阳性率分别为95.6%、28.0%,与对照组3组间两两比较,仅非细菌组与对照组差异无统计学意义(P﹥0.05)。重症组、局部组和对照组的hs-CRP阳性率分别为56.3%、39.5%和22.0%,3组间两两比较仅重症组与对照组差异有统计学意义(P﹤0.01);细菌组、非细菌组阳性率分别为57.8%、44.0%,差异无统计学意义(P﹥0.05)。以≥0.5ng/ml为标准,PCT敏感度为87.8%,特异度为66.7%;以≥2ng/ml为标准,PCT敏感度为71.4%,特异度为90.5%。hs-CRP敏感度为61.2%,特异度为76.2%。[结论]PCT具有较高的敏感度和特异度,相比hs-CRP优势明显,对新生儿感染性疾病尤其是重症感染具有重要的早期诊断价值,也是评估疗效和预后的可靠指标。

APPLICATION OF SERUM CALCITONIN AND C-REACTIVE PROTEIN IN EARLY DIAGNOSIS OF NEONATAL INFECTIONS

[Objective]To evaluate the application of PCT in the early diagnosis of neonatal infections.[Methods]The hospital treated 70 cases of neonatal infection in children with suspected source,their calcitonin(PCT)and C-reactive protein(hs-CRP)were measured and blood culture results were as the gold standard for the diagnosis of infection,analyzed the PCT,hs-CRP sensitivity,specificity and positive predictive value.[Results]The positive rate in thr severe group,the local PCT and the control group were 87.5%,63.2%...