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DENGUE DURING PREGNANCY: A STUDY OF THIRTEEN CASES
Author
Affilliation
Hospital Azevedo Lima. Serviços de Vigilância Sanitária. Niterói, RJ, Brasil.
Hospital Universitário Antonio Pedro. Departamento de Patologia. Niterói, RJ, Brasil.
Hospital Azevedo Lima. Serviços de Vigilância Sanitária. Niterói, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Flavivírus. Rio de Janeiro, RJ. Brasil.
Hospital Universitário Antonio Pedro. Departamento de Patologia. Niterói, RJ, Brasil.
Hospital Azevedo Lima. Serviços de Vigilância Sanitária. Niterói, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ. Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Flavivírus. Rio de Janeiro, RJ. Brasil.
Abstract
Problem statement: The principal aim was to evaluate the effects of dengue virus infection
by dengue during pregnancy and analyze the histopathology of the placenta. Approach: A
retrospective study was conducted with 13 pregnant women with dengue confirmed in the period from
January-December 2002, during a widespread dengue type 3 epidemic in Rio de Janeiro. Maternal and
newborn data were collected from patient files and medical records during hospitalization for research
for identification of dengue IgM antibodies (PanBio, Australia). Virus isolation was performed on all
fatal cases and anathomopathological studies and immunohistochemistry of the placenta were carried
out in three cases. Results: Among the 13 women, 11 (84, 6%) were infected in the third quarter of
pregnancy, 6 (54, 5%) of which resulting in premature birth and 4 cases (30, 7%) were classified as
DHF, causing 2 deaths. Intense abdominal pain afflicted 6 patients (46, 2%) and 5 newborns presented
low weight, however appropriate for the gestacional age. Conclusion: Dengue virus infection in
pregnancy increases premature birth risk, especially if the infection occurs in the last quarter of
pregnancy.
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