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Prenatal diagnosis and perinatal management of maternal-fetal congenital parvovirus B19 infection.

Abstract：

OBJECTIVE:In nonimmune pregnant woman, the primary infection with parvovirus B19 may lead to transplacental transmission to the fetus with variable outcomes, including congenital anemia, hydrops fetalis, fetal death or spontaneous resolution. CASE REPORT:The first case was of a 28-year-old woman, gravida 2, para 1, whose fetus was found to have left-sided pleural effusion on a sonogram at 29 weeks of gestation. A sample of aspirated pleural fluid was positive for parvovirus B19 by polymerase chain reaction. Cordocentesis showed fetal hemoglobin level of 5.0 g/dL. Intraperitoneal transfusion (IPT) was performed, because access to the fetal circulation was difficult. Thirty milliliters of group O, Rh-positive packed red cells were transfused into the peritoneal cavity. A non-hydropic baby weighing 2,680 g was delivered at 33 weeks of gestation. The neonates complete blood count examination showed a hemoglobin level of 16.3 g/dL. The newborn baby was discharged in stable condition. The second case was of a 31-year-old woman, gravida 2, para 1, whose fetus was found to have ascites, hypertrophic cardiomyopathy, and placentomegaly on a sonogram at 23 weeks of gestation. An amniotic fluid sample was positive for parvovirus B19 DNA by polymerase chain reaction. Fetal ascites and hypertrophic cardiomyopathy gradually resolved after maternal iron supplementation and 2 weeks of intrauterine digitalization therapy. A healthy infant weighing 3,198 g was delivered at 37 weeks of gestation. The neonates complete blood count examination showed a hemoglobin level of 10.3 g/dL. CONCLUSION:Termination of pregnancy is rarely indicated, because B19 virus is not teratogenic. Although intravascular transfusion offers obvious theoretical advantages, in some cases in which access to the fetal circulation is difficult or impossible, IPT should be performed combined with appropriate medical treatment. Thus, there is still a place for IPT in modern management of the severely anemic fetus, and this technique should not be neglected.

journal_name

Taiwan J Obstet Gynecol

journal_title

Taiwanese journal of obstetrics & gynecology

authors

Hsu ST,Chen YT,Huang YF,Yeh TT,Chen WC,Ho ES,Chou MM

doi

10.1016/s1028-4559(08)60014-5

subject

Has Abstract

pub_date

2007-12-01 00:00:00

pages

417-22

issue

eissn

1028-4559

issn

1875-6263

pii

S1028-4559(08)60014-5

journal_volume

pub_type

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Prenatal diagnosis and perinatal management of maternal-fetal congenital parvovirus B19 infection.