尿液C多糖抗原对肺炎链球菌感染的诊断价值

The diagnostic value of urine C polysaccharide antigens for Streptococcus pneumoniae infection

目的探讨尿液C多糖抗原检测对肺炎链球菌感染的诊断价值。方法收集社区获得性肺炎患者372例,采用BinaxNOW肺炎链球菌抗原试剂盒检测尿液中的C多糖抗原。结果 C多糖抗原检测的敏感度为63.0%,特异度为85.3%。在确诊肺炎链球菌感染患者中,C多糖抗原阳性率为84.0%。在疑似肺炎链球菌感染患者中,C多糖抗原阳性率为57.4%。结论尿液C多糖抗原检测可作为诊断肺炎链球菌感染的辅助手段。

Objective To explore the value of urine C polysaccharide antigens for the diagnosis of Streptococcus pneumoniainfection.Methods 372 cases of patients with community-acquired pneumonia were selected,and their urine C polysaccharide antigens were tested by using BinaxNOW kit.Results The sensitivity and specificity of urine C polysaccharide antigens were 63.0% and85.3%,respectively.The positive rate of urine C polysaccharide antigens in patients diagnosed with Streptococcus pneumoniainfection was 84.0%,and that in patients suspected with Streptococcus pneumoniainfection was 57.4%.Conclusion The test of urine C polysaccharide antigens can be a diagnostic adjunct for Streptococcus pneumoniainfection.