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J Clin Virol. 2011 Apr;50(4):303-7. doi: 10.1016/j.jcv.2010.12.012. Epub 2011 Feb 1.

Role of prenatal diagnosis and counseling in the management of 735 pregnancies complicated by primary human cytomegalovirus infection: a 20-year experience.

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1
SC Ostetricia e Ginecologia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.

Abstract

BACKGROUND:

The burden of congenital human cytomegalovirus (HCMV) infection is well recognized. However, screening for maternal infection remains controversial in view of diagnostic challenges, counseling difficulties, and absence of medical treatment.

OBJECTIVE:

To assess the role of prenatal diagnosis and counseling in the management of pregnancy complicated by primary HCMV infection.

STUDY DESIGN:

Retrospective study aimed at investigating diagnostic features, options, and pregnancy outcome in 735 women with primary HCMV infection over a period of 20 years (1990-2009).

RESULTS:

Overall, 25.6% women were found to be seronegative before the actual pregnancy. However, none were informed about HCMV infection and potential prevention strategies. Diagnosis of primary HCMV infection was achieved by seroconversion in 44.4% cases and by different combinations of virus-specific IgM, low IgG avidity, and DNAemia in 43.9% cases. Non-specific symptoms and/or haematological/biochemical alterations were recalled by 73.5% women. The onset of infection could be established, and counseling adjusted accordingly in >90% cases. The overall rate of vertical transmission was 37.1%, ranging from 5.6% for preconceptional infections to 64.1% for third trimester infections. Amniocentesis was chosen by 43.1% women, whereas pregnancy termination was requested by 15.6%.

CONCLUSIONS:

Reference virology centers and ad hoc trained and experienced physicians are required for accurate diagnosis of primary infection in pregnancy and ensuing counseling. Prenatal diagnosis has a central role in the management of pregnancies complicated by primary HCMV infection. HCMV-seronegative women should receive adequate information.

PMID:
21277825
DOI:
10.1016/j.jcv.2010.12.012
[Indexed for MEDLINE]

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