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Streptococcus viridans infections in midgestation.

I Ariel1, D B Singer

  • 1Department of Pathology, Brown University Program in Medicine, Providence, Rhode Island.

Pediatric Pathology
|January 1, 1991
PubMed
Summary
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Streptococcus viridans can cause serious second-trimester amniotic fluid infections, leading to fetal and neonatal sepsis. This study found evidence of fetal infection in 16 of 18 cases examined.

Area of Science:

  • Perinatology
  • Neonatal infections
  • Microbiology

Background:

  • Second-trimester amniotic fluid infections are a significant cause of pregnancy complications.
  • Streptococcus viridans is a known pathogen, but its role in mid-gestation infections requires further investigation.

Purpose of the Study:

  • To investigate the role of Streptococcus viridans in second-trimester amniotic fluid infections.
  • To identify clinical and pathological findings associated with S. viridans infections in fetuses and neonates.

Main Methods:

  • Autopsy analysis of 18 stillborn fetuses and neonates over a 14-year period.
  • Microbiological isolation of Streptococcus viridans.
  • Pathological examination for evidence of infection and amniotic fluid aspiration.

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Main Results:

  • Streptococcus viridans was isolated from 18 cases of mid-gestation fetal loss.
  • Evidence of infected amniotic fluid aspiration was found in 16 cases.
  • Chorioamnionitis and funisitis were common findings, suggesting ascending infection.

Conclusions:

  • Streptococcus viridans plays a significant role in the pathogenesis of second-trimester amniotic fluid infections.
  • Infections can lead to fetal and neonatal sepsis, abortions, and stillbirth.
  • Poor maternal obstetric history and signs of infection during pregnancy were noted.