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Neurostructural Consequences of Obstetric Brachial Plexus Palsy in Childhood

Dzerassa Kadieva1, Maxim Ulanov1, Anna Shestakova1

  • 1Institute for Cognitive Neuroscience, National Research University Higher School of Economics, Moscow, Russian Federation.

Neuroscience Insights
|September 16, 2024
PubMed

Insights

Obstetric brachial plexus palsy (OBPP) in children is linked to brain structure differences, particularly in the hippocampus and cerebellum. These findings suggest a connection between motor deficits and brain development, impacting adaptation.

Area of Science:

  • Neuroscience
  • Pediatric Neurology
  • Developmental Biology

Background:

  • Obstetric brachial plexus palsy (OBPP) is a birth injury affecting limb function.
  • Severe OBPP can lead to significant life constraints in daily activities for 20-30% of affected children.

Purpose of the Study:

  • To investigate the effects of peripheral motor deficits in pediatric OBPP on early brain development.
  • To examine brain structure differences in children with OBPP using advanced neuroimaging techniques.

Main Methods:

  • Voxel-based morphometry (VBM) and surface-based morphometry (SBM) were employed.
  • T1-weighted MRI data from 18 pediatric OBPP patients and 18 healthy controls were analyzed using SPM12.
  • Custom pediatric brain templates were utilized for accurate analysis.

Main Results:

  • Significant differences in grey matter volume were observed in the bilateral anterior hippocampus and left cerebellum (Crus I).
  • Cortical thickness variations were found in the bilateral parahippocampal gyri and right orbitofrontal cortex (OFC).

Conclusions:

  • Structural brain differences in OBPP patients may relate to altered environmental adaptation due to motor deficits.
  • Findings suggest a complex interplay between motor skills, brain structure development, and cognitive function.
  • Further research integrating neuroimaging with clinical and behavioral data is warranted.
Abstract

Keywords:
Obstetrical brachial plexus palsycerebellumhippocampusorbitofrontal cortexparahippocampal gyrussurface-based morphologyvoxel-based morphology

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