C反应蛋白、前清蛋白联合白细胞计数在新生儿感染性疾病中的诊断及应用

目的 探讨C反应蛋白(CRP)、血清前清蛋白(PA)及白细胞计数(WBC)联合检测对于新生儿感染性疾病的诊断及临床应用价值.方法 收集187例足月新生患儿,其中92例细菌感染患儿作为感染组,95例非感染性疾病患儿作为非感染组,检测CRP、PA及WBC分别在两组中所占异常率;比较单项及联合应用的敏感度和特异度及假阳性率和假阴性率;观察比较感染组患儿3种指标治疗前后的变化情况.结果 感染组新生儿的CRP、PA及WBC异常率均明显高于非细菌感染性疾病组(P＜0.05);联合检测CRP+ PA+ WBC较单独检测CRP、PA、WBC的灵敏度和特异度高;治疗后,感染组新生儿CRP水平显著降低,PA水平明显升高,WBC计数恢复正常(P＜0.05).结论 CRP、PA及WBC联合检测对早期诊断新生儿细菌性感染具有重要的临床价值.

Diagnosis and application of C-reactive protein,prealbumin and WBC count in neonatal infectious diseases

Objective To explore the diagnostic and clinical application value of combined detection of C-reactive protein (CRP),serum prealbumin (PA) and white blood cell (WBC) count in neonatal infectious diseases.Methods A total of 187 fullterm newborns were collected in this study,including 92 newborns of bacterial infection as the infection group and 95 newborns of non-infection diseases as non-infection group.The abnormal rates of CRP,PA and WBC in the two groups were measured;the sensitivity,specificity,false positive rate and false negative rate were compared between the single detection and combined detection of WBC,PA,CRP;the changes of the three indexes in the infection group were compared between before and after treatment.Results The abnormal rates of CRP,PA and WBC in the infection group were significantly higher than those in the non-bacterial infection diseases group (P＜0.05).The sensitivity and specificity of combined detection of CRP+ PA + WBC were higher than those of single detection of CRP,PA and WBC;after treatment,the level of CRP in the infection group was significantly decreased,the level of PA was significantly increased and the WBC count returned to normal(P＜0.05).Conclusion The combined detection of CRP,PA and WBC has an important clinical value in the early diagnosis of neonatal bacterial infection.