Neonatal brain abnormalities and memory and learning outcomes at 7 years in children born very preterm

Cristina Omizzolo1, Shannon E Scratch, Robyn Stargatt

  • 1a Murdoch Childrens Research Institute, Royal Children's Hospital , Parkville , VIC , Australia.

Insights

Very preterm children show deficits in memory and learning by age 7. Neonatal brain abnormalities, especially in deep grey matter, predict poorer cognitive outcomes in these children.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Pediatrics

Background:

  • Very preterm birth is associated with increased risk of neurodevelopmental challenges.
  • Understanding long-term cognitive outcomes in very preterm children is crucial for early intervention.
  • Neonatal brain structure may offer insights into later cognitive function.

Purpose of the Study:

  • To characterize memory and learning abilities in very preterm children at 7 years of age.
  • To investigate the relationship between neonatal brain abnormalities and 7-year cognitive outcomes.
  • To identify specific brain regions associated with memory and learning deficits in this population.

Main Methods:

  • Prospective longitudinal study of 198 very preterm and 70 full-term children.
  • Assessment of verbal and visual memory and learning at 7 years of age.
  • Qualitative assessment of neonatal magnetic resonance imaging (MRI) for brain abnormalities.

Main Results:

  • Very preterm children exhibited poorer performance in immediate memory, working memory, long-term memory, and learning compared to controls.
  • Neonatal brain abnormalities, particularly deep grey-matter abnormalities, were linked to worse memory and learning outcomes.
  • Cerebral neonatal pathology is a significant predictor of later memory and learning function.

Conclusions:

  • Very preterm children face significant challenges in memory and learning functions.
  • Neonatal brain imaging is a valuable tool for predicting cognitive development.
  • Early identification of brain abnormalities can guide interventions for very preterm infants.