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  • Title: Relationships between early postnatal cranial ultrasonography linear measures and neurodevelopment at 2 years in infants born at <30 weeks' gestational age without major brain injury.
    Author: Cuzzilla R, Cowan FM, Rogerson S, Anderson PJ, Doyle LW, Cheong JLY, Spittle A.
    Journal: Arch Dis Child Fetal Neonatal Ed; 2023 Sep; 108(5):511-516. PubMed ID: 36958812.
    Abstract:
    OBJECTIVE: To explore relationships of early postnatal cranial ultrasonography (cUS) linear measures of brain size and brain growth with neurodevelopment at 2 years in infants born <30 weeks' gestational age (GA) and free of major brain injury. DESIGN: Prospective observational cohort study. SETTING: Tertiary neonatal intensive care unit. PATIENTS: 139 infants born <30 weeks' GA, free of major brain injury on neonatal cUS and without congenital or chromosomal anomalies known to affect neurodevelopment. INTERVENTION: Linear measures of brain tissue and fluid spaces made from cUS at 1-week, 1-month and 2-months' postnatal age. MAIN OUTCOME MEASURES: Cognitive, language and motor scores on the Bayley Scales of Infant and Toddler Development, third edition at 2 years' corrected age. RESULTS: 313 scans were evaluated from the 131 children who were assessed at 2 years. Larger measures of the corpus callosum at 1 week, 1 month and 2 months, cerebellum and vermis at 2 months and faster positive growth of the cerebellum and vermis between 1 month and 2 months, were related to higher cognitive and language scores at 2 years. No relation between tissue measures and motor scores was found. Larger measures, and faster rate of increase, of fluid spaces within the first weeks after birth were related to better cognitive, language and motor outcomes at 2 years. CONCLUSIONS: Early postnatal cUS linear measures of brain tissue were related to cognitive and language development at 2 years in infants born <30 weeks' GA without major brain injury. Relationships between cUS linear measures of fluid spaces in the early postnatal period and later neurodevelopment warrant further exploration.
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