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Updated: Jan 1, 2026

A Murine Model of Fetal Exposure to Maternal Inflammation to Study the Effects of Acute Chorioamnionitis on Newborn Intestinal Development
Published on: June 24, 2020
The fetal inflammation response syndrome and adverse neonatal outcomes: a meta-analysis
Qin Tang1, Liheng Zhang1, Huan Li1
1Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
Background:
The clinical performance of fetal inflammatory response syndrome (FIRS) is often atypical. The aim of this meta-analysis is to investigate whether FIRS is associated with adverse neonatal outcomes.
Methods:
PubMed, Embase, and Cochrane Library were used in this study. The adverse neonatal outcomes data including neonatal early-onset sepsis (EOS), bronchopulmonary dysplasia (BPD), periventricular leukomalacia (PVL), intraventricular hemorrhage (IVH), respiratory distress syndrome (RDS), and neonatal death were collected to make analysis.
Results:
A total of 10 articles (1116 patients) were included in this study. Compared to the non-FIRS group, the FIRS group was associated with higher incidence of adverse neonatal outcomes, such as EOS (RR = 3.10, 95% CI: 1.26, 7.65; p=.014), BPD (RR = 5.93, 95% CI = 4.35, 8,08; p < .001), IVH (RR = 4.89, 95% CI = 2.96, 8.08; p < .001), PVL (RR = 3.32, 95% CI: 1.73, 6.40; p < .001), RDS (2.35, 95% CI = 1.67, 3.31; p < .001), and the neonatal death (RR = 7.04, 95% CI: 3.34, 14.85; p < .001).
Conclusions:
The FIRS is associated with higher incidence of adverse neonatal outcomes, and is a risk factor of severe neonatal morbidity or death.

