呼吸道合胞病毒RNA及IgM在小儿呼吸道感染诊断中的应用价值

目的探讨呼吸道合胞病毒RNA(RSV-RNA)及呼吸道合胞病毒IgM(RSV-IgM)在小儿呼吸道感染诊断中的应用价值。方法选取2015年9月至2017年4月确诊呼吸道合胞病毒感染患儿56例,收集其咽部分泌物标本,对RSV-RNA进行检测;另抽取患儿空腹静脉血,对RSV-IgM进行检测,对两者的阳性检出率及与年龄、发病时间的相关性进行统计学分析。结果 RSV-RNA、RSV-IgM阳性检出率分别为89.29%、32.14%,RSV-RNA的阳性检出率显著高于RSV-IgM,差异有统计学意义(P0.05)。≤6个月,6个月至1岁患儿的RSV-RNA阳性检出率均高于RSV-IgM(P0.05);发病时间≤7d的患儿RSVRNA的阳性检出率高于RSV-IgM(P0.05)。结论在小儿RSV感染检测中,检测RNA比IgM具有更高的准确性,尤其是对年龄≤1岁、发病时间较短(≤7d)的患儿,早期诊断具有重要指导作用。

Application value of detection of respiratory syncytial virus RNA and IgM in the diagnosis of children with respiratory infection

Objective To explore the application value of respiratory syncytial virus RNA (RSV-RNA) and respiratory syncytial virus IgM (RSV-IgM) antibody in the diagnosis of children with respiratory infection .Methods From September 2015 to April 2017 ,56 cases of respiratory syncytial virus infection were selected ,and the specimens of pharyngeal secretions were collected ,and RSV-RNA was detected ,in addition ,fasting venous blood was taken from children ,and the RSV-IgM antibody was detected .The positive rate of detection and correlation with age and time of onset were statistically analyzed .Results The positive rates of RSV-RNA and RSV-IgM were 89 .29% and 32 .14% ,respectively .The detection rate of RSV-RNA was significantly higher than that of RSV-IgM ,and the difference was statistically significant (P<0 .05) .The two groups ,≤6 months and from >6 months to 1 year old ,the detection rates of RSV-RNA in children was higher than RSV-IgM (P<0 .05) ,and the detection rate of RSV-RNA in chil-dren with ≤7 days of onset was higher than that of RSV-IgM (P<0 .05) .Conclusion The detection of children with RSV infec-tion ,which the detection of RNA has higher accuracy than IgM ,especially for children ≤1 year old ,the onset time is shorter(≤7 days) ,plays an important guiding role for early diagnosis .