Clinical study of different methods on early diagnosis and monitoring of neonatal congenital cytomegalovirus infection / 中华围产医学杂志

ABSTRACT

Objective To evaluate the feasibility and utility of three different assays on early diagnosis and monitoring of neonatal congenital cytomegalovirus infection. Methods Ninety-eight neonates whose mother was CMV-IgM positive during pregnancy were examined on the 14th days after birth for CMV antigen in blood and PCR-CMV-DNA in the saliva. Three different methods were applied including CMV antigenemia assay, PCR for CMV-DNA and ELISA for serum CMV-IgM. Neonates were followed up for six months. Results (1) Forty-eight of the 98 neonates were diagnosed as congenital CMV infection including 7 symptomatic infection and 41 asymptomatic. None of the 98 subjects was CMV-IgM positive. Among the 7 symptomatic cases, the positive rates of CMV antigen and PCR-CMV-DNA were 100%(7), 71.4%(5), and 70.7%(29/41), 46.3%(19/41) in the asymptomatic group, respectively. The sensitivity of CMV antigenemia assay and PCR was 75.0% and 54.2%, respectively. The CMV antigenemia index of the symptomatic cases was significantly higher than that of asymptomatic ones [(16-52)/50 000 vs (3-31)/50 000 white blood cells, P