Neurodevelopmental outcomes at five years in children born very preterm (24–31 weeks) exposed to opioids with or without midazolam: results from the French nationwide EPIPAGE-2 cohort study

Le résumé fourni par la source

Background: Data on preschool neurodevelopment of preterm infants according to the duration of their neonatal exposure to opioids with/without midazolam is limited. We aimed to assess neurodevelopment outcome in children aged five years, born very preterm (24-31 weeks), according to exposure to these drugs. Methods: Secondary analysis from the French prospective cohort study EPIPAGE-2 (Etude Epidémiologique sur les Petits Ages Gestationnels, 2011). Exposure to opioids with/without midazolam was classified as none, ≤7 or >7 days. Percentages were weighted to account for the study design. The primary outcome was moderate/severe neurodevelopmental disabilities (NDD). Analyses were conducted using logistic regression and adjusted for perinatal confounders. Findings: Among 3117 survivors, 1165 (35.9%) were exposed (762/1165 (68.0%) ≤7 days, 403/1165 (32.0%) >7 days). Of these 49.5% received opioids only, 41.4% opioids and midazolam, and 9.1% midazolam only. Moderate/severe NDD occurred in 17.8%, 18.9%, and 31.7% in the unexposed, exposed ≤7 days, and exposed >7 days groups, respectively. After adjustment for baseline confounders, only exposure >7 days was associated with increased rates of moderate/severe NDD (adjusted odds ratio 2.07; 95% CI 1.32-3.26). After additional adjustment for severe neonatal morbidities no significant association was found between any duration of exposure and NDD. Interpretation: Exposure to opioids with/without midazolam >7 days might be associated with a higher prevalence of moderate/severe NDD at five years in very preterm born children but severe neonatal morbidities are a major modulator of this association. Funding: French Institute of Public Health Research, National Institute of Health and Medical Research, National Institute of Cancer, National Solidarity Fund for Autonomy, PremUp, APICIL Foundations.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.