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Cesarean Delivery Impacts Infant Brain Development
S C Deoni1, S H Adams2,3, X Li4
1School of Engineering (S.C.D.), Brown University, Providence, Rhode Island.
AJNR. American Journal of Neuroradiology
|November 24, 2018
Summary
Cesarean delivery may temporarily affect infant brain development, impacting white matter and connectivity. These effects appear transient, as they were not observed in older children, suggesting a potential normalization with age.
Area of Science:
- Neuroscience
- Developmental Biology
- Pediatrics
Background:
- Cesarean delivery rates have risen globally.
- The long-term neurodevelopmental outcomes of cesarean delivery remain unclear.
- Understanding the impact of birth mode on infant brain development is crucial.
Purpose of the Study:
- To investigate the association between cesarean delivery and offspring brain development.
- To evaluate differences in brain structure and function based on delivery mode.
Main Methods:
- Retrospective study of 306 healthy children across three cohorts (neonates, 8-year-olds, and a longitudinal infant cohort).
- Utilized advanced neuroimaging techniques including diffusion tensor imaging, myelin water fraction imaging, voxel-based morphometry, and resting-state fMRI.
- Analyzed white matter integrity, myelination, gray matter volume, and functional connectivity.
Main Results:
- Neonates born via cesarean delivery showed reduced white matter development and functional connectivity.
- No significant differences in white matter or gray matter were found in 8-year-old children.
- Infants born via cesarean delivery exhibited altered myelination trajectories, with reduced myelin in infancy that normalized with age.
Conclusions:
- Cesarean delivery may transiently influence infant brain development.
- Observed neurodevelopmental effects in infancy appear to normalize with age.
- Further prospective studies are warranted to confirm these findings.
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