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Histological chorioamnionitis and developmental outcomes in very preterm infants

Abstract

Objective

To characterize the association of histological chorioamnionitis (HCA) with neurodevelopmental outcomes in children born at <30 weeks gestation.

Study design

This retrospective cohort study included infants born 2006–2012 in whom placental histopathology, neonatal outcomes, and Bayley-III assessment at age 2 years were available. We assessed the association of HCA exposure with cognitive, language, and motor delay with logistic regression models adjusted for gestational age, sex, small for gestational age and brain injury.

Results

Of 1353 infants, 985 had histological and neonatal data available, and 708 infants had Bayley-III assessments. HCA-exposed infants were at higher risk of some neonatal adverse outcomes, and stage of HCA correlated with low Apgar score and early-onset sepsis. Exposure to HCA was not associated with neurodevelopmental outcomes in adjusted models including stage of HCA.

Conclusions

Exposure to HCA, especially higher stage, was associated with neonatal morbidity but not with adverse neurodevelopmental outcomes at 2 years of age.

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Funding

The study was supported by a Telethon Channel 7 Trust research grant to Catherine Campbell and Tobias Strunk.

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Correspondence to Tobias Strunk.

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The authors declare that they have no conflict of interest.

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Strunk, T., Campbell, C., Burgner, D. et al. Histological chorioamnionitis and developmental outcomes in very preterm infants. J Perinatol 39, 321–330 (2019). https://doi.org/10.1038/s41372-018-0288-3

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