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J Pediatr Infect Dis 2017; 12(03): 157-163
DOI: 10.1055/s-0037-1603101
Review Article
Georg Thieme Verlag KG Stuttgart · New York

Chorioamnionitis-Induced Immunological Changes and Neonatal Outcome

Modupe T. Awonuga
1   Division of Neonatology, Department of Pediatrics and Human Development, Michigan State University, East Lansing, Michigan, United States
,
Said A. Omar
1   Division of Neonatology, Department of Pediatrics and Human Development, Michigan State University, East Lansing, Michigan, United States
› Author Affiliations
Further Information

Publication History

08 December 2016

26 December 2016

Publication Date:
17 May 2017 (online)

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Abstract

Chorioamnionitis is inflammation of the fetal membranes (chorion and amnion) which could be of microbial or nonmicrobial etiology. It is a common complication of pregnancy with significant implications for both mother and infant. It represents a spectrum of diseases, which range from histological but subclinical chorioamnionitis to funisitis and chorionic vasculitis with multiorgan involvement in the fetus. Chorioamnionitis results in the activation of the fetal innate immune system known as the fetal inflammatory response syndrome (FIRS). FIRS with or without evidence of microbial presence initiates an inflammatory cascade that has been implicated in the mechanisms responsible for the fetal injury. Such injury can result in adverse neonatal outcomes involving multiple organ systems with high perinatal and long-term morbidity and mortality. While antimicrobial treatment of chorioamnionitis is beneficial to the mother, it is unclear whether the same holds true for the fetus as the damage may already be done by the production of proinflammatory cytokines. This article reviews the immunological changes and their consequences in neonates born to mothers with chorioamnionitis.

Keywords

chorioamnionitis - inflammation - cytokines - fetal inflammatory response syndrome - neonatal outcome
 

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