alexa Outcomes of infants born at 22 and 23 weeks' gestation.
Reproductive Medicine

Reproductive Medicine

Journal of Pregnancy and Child Health

Author(s): Ishii N, Kono Y, Yonemoto N, Kusuda S, Fujimura M Neonatal Res,

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Abstract OBJECTIVE: To provide instructive information on death and neurodevelopmental outcomes of infants born at 22 and 23 weeks' gestational age. METHODS: The study cohort consisted of 1057 infants born at 22 to 25 weeks in the Neonatal Research Network, Japan. Neurodevelopmental impairment (NDI) at 36 to 42 months' chronological age was defined as any of the following: cerebral palsy, hearing impairment, visual impairment, and a developmental quotient <70. A systematic review was performed by using databases of publications of cohort studies with neonatal and neurodevelopmental outcomes at 22 and 23 weeks. RESULTS: Numbers and incidences (\%) of infants with death or NDI were 60 (80\%) at 22 weeks and 156 (64\%) at 23 weeks. In logistic regression analysis, gestational ages of 22 weeks (odds ratio [OR]: 5.40; 95\% confidence interval [CI]: 2.48-11.76) and 23 weeks (OR: 2.14; 95\% CI: 1.38-3.32) were associated with increased risk of death or NDI compared with 24 weeks, but a gestational age of 25 weeks (OR: 0.65; 95\% CI: 0.45-0.95) was associated with decreased risk of death or NDI. In the systematic review, the medians (range) of the incidence of death or NDI in 8 cohorts were 99\% (90\%-100\%) at 22 weeks and 98\% (67\%-100\%) at 23 weeks. CONCLUSIONS: Infants born at 22 and 23 weeks' gestation were at higher risk of death or NDI than infants at born at 24 weeks. However, outcomes were improved compared with those in previous studies. There is a need for additional discussions on interventions for infants born at 22 or 23 weeks' gestation. This article was published in Pediatrics and referenced in Journal of Pregnancy and Child Health

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