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Histological chorioamnionitis and neurodevelopmental outcome in preterm infants

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Abstract

Objective:

The objective of this study is to examine the neurodevelopmental outcome at 30 to 42 months corrected age of preterm infants with histological chorioamnionitis (HCA).

Study Design:

The study design is a retrospective cohort study with a prospective follow-up. All surviving infants with birth gestational age <29 weeks, born between 2000 and 2006, who had a neurodevelopmental assessment at 30 to 42 months corrected age were included. We compared the neurodevelopmental outcomes of infants with or without HCA.

Result:

Of the 384 infants, 197 (51%) were born to mothers with evidence of HCA. Infants with HCA were of lower gestational age (26 weeks vs 26.6 weeks) and more likely to have intraventricular hemorrhage (27.9% vs 14.4%), periventricular leukomalacia (2.5% vs 0%) and retinopathy of prematurity ⩾stage 3 (31.4% vs 22.4%). On univariate analysis, infants with HCA were more likely to have cerebral palsy (12.6% vs 6.4%, P=0.04). There was no significant difference in the incidence of cognitive delay, deafness, blindness, or total major disabilities between the two groups. After adjusting for perinatal variables, HCA was associated with increased risk of cerebral palsy (odds ratio (OR): 2.45; 95% confidence interval (CI) 1.11 to 5.40), but not for total major disabilities (OR: 1.22; 95% CI: 0.64 to 2.34). There was a trend towards increased risk of cerebral palsy with HCA with funisitis.

Conclusion:

HCA is associated with increased risk of cerebral palsy at 30 to 42 months corrected age in preterm infants.

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Authors and Affiliations

  1. Department of Pediatrics, Foothills Medical Centre, University of Calgary, Alberta Children's Hospital Research Institute for Child and Maternal Health, Calgary, AB, Canada

    A S Soraisham, N Singhal & R Sauve

  2. Department of Pathology and Laboratory Medicine, University of Calgary, Alberta Children's Hospital Research Institute for Child and Maternal Health, Calgary, AB, Canada

    C Trevenen

  3. Department of Obstetrics and Gynecology, University of Calgary, Alberta Children's Hospital Research Institute for Child and Maternal Health, Calgary, AB, Canada

    S Wood

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  1. A S Soraisham
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  2. C Trevenen
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  4. N Singhal
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Correspondence to A S Soraisham.

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Soraisham, A., Trevenen, C., Wood, S. et al. Histological chorioamnionitis and neurodevelopmental outcome in preterm infants. J Perinatol 33, 70–75 (2013). https://doi.org/10.1038/jp.2012.49

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  • DOI: https://doi.org/10.1038/jp.2012.49

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