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BJOG. 2011 Mar;118(4):448-56. doi: 10.1111/j.1471-0528.2010.02822.x. Epub 2010 Dec 24.

Prognostic markers of symptomatic congenital human cytomegalovirus infection in fetal blood.

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Ostetricia e Ginecologia, Ospedale Vittore Buzzi, Dipartimento di Scienze Cliniche, Università degli Studi di Milano, Italy.



To identify fetal cord blood prognostic markers of symptomatic congenital human cytomegalovirus infection (HCMV).


Retrospective observational study.


Fetal medicine unit in Milan and Medical virology unit in Pavia, Italy.


HCMV-infected and -uninfected fetuses of mothers with primary HCMV infection during the period 1995-2009.


Overall, 94 blood samples from as many fetuses of 93 pregnant women experiencing primary HCMV infection were examined for multiple immunological, haematological and biochemical markers as well as virological markers. Congenital HCMV infection was diagnosed by detection of virus in amniotic fluid, and symptomatic/asymptomatic infections were determined by ultrasound scans, nuclear magnetic resonance imaging, histopathology or clinical examination at birth. Blood sample markers were retrospectively compared in symptomatic and asymptomatic fetuses with congenital infection.


A statistical analysis was performed to determine the value of each parameter in predicting outcome.


Univariate analysis showed that most nonviral and viral markers were significantly different in symptomatic (n = 16) compared with asymptomatic (n = 31) fetuses. Receiver operator characteristics analysis indicated that, with reference to an established cutoff for each marker, the best nonviral factors for differentiation of symptomatic from asymptomatic congenital infection were β(2) -microglobulin and platelet count, and the best virological markers were immunoglobulin M antibody and DNAaemia. β(2) -Microglobulin alone or the combination of these four markers reached the optimal diagnostic efficacy.


The determination of multiple markers in fetal blood, following virus detection in amniotic fluid samples, is predictive of perinatal outcome in fetuses with HCMV infection.

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