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A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse
08:19

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Impaired neuroanatomic development in infants with congenital heart disease

Kazuhiro Watanabe1, Mie Matsui, Junko Matsuzawa

  • 1Department of Pediatrics, University of Toyama, Toyama, Japan.

The Journal of Thoracic and Cardiovascular Surgery
|January 22, 2009
PubMed

Insights

Infants with congenital heart disease show reduced gray matter volume, particularly in the frontal lobe. Preoperative hypoxia is linked to this impairment, potentially affecting neurodevelopmental outcomes.

Area of Science:

  • Neuroscience
  • Pediatric Cardiology
  • Developmental Biology

Background:

  • Congenital heart disease (CHD) affects brain development.
  • Understanding neuroanatomic changes in infants with CHD is crucial.

Purpose of the Study:

  • To investigate brain volumetric differences in infants with CHD.
  • To identify factors associated with brain developmental impairment in these infants.

Main Methods:

  • 3D magnetic resonance imaging (MRI) was used in 40 infants with CHD post-surgery.
  • Volumetric analysis focused on gray and white matter, including regional assessments.

Main Results:

  • Significantly reduced global gray matter volume in infants with CHD compared to controls.
  • Frontal lobe gray matter showed a more pronounced decrease, especially in single ventricle physiology and transposition of the great arteries.
  • Preoperative hypoxia and hypoplastic left heart syndrome were associated with decreased frontal gray matter volume.

Conclusions:

  • Brain developmental impairment is common in infants with CHD, particularly those with preoperative hypoxia or critical CHD.
  • Quantitative volumetric data suggest a need for larger, longitudinal studies to link neuroanatomic changes to functional outcomes.
Abstract

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