Long-lasting effects of very preterm birth on brain structure in adulthood: A systematic review and meta-analysis

Neurosci Biobehav Rev. 2023 Apr:147:105082. doi: 10.1016/j.neubiorev.2023.105082. Epub 2023 Feb 10.

Abstract

Early life experiences, such as very preterm (VP) birth, can affect brain and cognitive development. Several prior studies investigated brain structure in adults born VP; synthesising these studies may help to provide a clearer understanding of long-term effects of VP birth on the brain. We systematically searched Medline and Embase for articles that investigated brain structure using MRI in adulthood in individuals born VP (<32 weeks' gestation) or with very low birth weight (VLBW; <1500 g), and controls born at term or with normal birth weight. In total, 77 studies met the review inclusion criteria, of which 28 studies were eligible for meta-analyses, including data from up to 797 VP/VLBW participants and 518 controls, aged 18-33 years. VP/VLBW adults exhibited volumetric, morphologic and microstructural alterations in subcortical and temporal cortical regions compared with controls, with pooled standardised mean differences up to - 1.0 (95% confidence interval: -1.2, -0.8). This study suggests there is a persisting neurological impact of VP birth, which may provide developmental neurobiological insights for adult cognition in high-risk populations.

Keywords: Brain imaging; Diffusion imaging; Magnetic resonance imaging; Neurodevelopment; Neuroscience; Preterm birth.

Publication types

  • Meta-Analysis
  • Systematic Review
  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Brain / diagnostic imaging
  • Female
  • Humans
  • Infant, Extremely Premature / psychology
  • Infant, Newborn
  • Infant, Very Low Birth Weight / psychology
  • Longitudinal Studies
  • Premature Birth*