Cerebellar and Prefrontal Structures Associated With Executive Functioning in Pediatric Patients With Congenital

Daryaneh Badaly1, Sue R Beers2, Rafael Ceschin3,4

  • 1Learning and Development Center, Child Mind Institute, New York, NY, United States.

Frontiers in Neurology
|March 31, 2022
PubMed

Insights

Children with congenital heart defects (CHD) show executive dysfunction linked to smaller brain regions. The cerebellum influences these functions and may alter prefrontal cortex roles in CHD patients compared to controls.

Area of Science:

  • Neuroscience
  • Developmental Psychology
  • Pediatric Cardiology

Background:

  • Congenital heart defects (CHD) are frequently associated with executive dysfunction in pediatric populations.
  • Executive functions are critical for daily life activities and academic success.
  • The prefrontal cortex and cerebellum are key brain structures implicated in executive functions.

Purpose of the Study:

  • To investigate the relationship between prefrontal and cerebellar brain structures and executive dysfunction in children, adolescents, and young adults with CHD.
  • To compare brain structure volumes and executive function performance between individuals with CHD and healthy controls.

Main Methods:

  • Magnetic resonance imaging (MRI) was used to obtain volumetric data of prefrontal and cerebellar regions in 55 participants with CHD and 95 healthy controls.
  • Neuropsychological tests assessed executive functioning, and parent ratings provided additional executive function data.
  • Statistical analyses examined group differences and correlations between brain volumes and executive function measures.

Main Results:

  • Participants with CHD exhibited smaller cerebellar and prefrontal brain volumes compared to healthy controls.
  • Individuals with CHD performed worse on tests of working memory, inhibitory control, and mental flexibility.
  • Brain volumes in prefrontal and cerebellar regions significantly correlated with various executive function measures and parent ratings.

Conclusions:

  • The cerebellum plays a role in executive functioning for young individuals with CHD.
  • Cerebellar structures may modulate the interplay between prefrontal regions and executive functions differently in CHD patients versus healthy controls.
  • Findings highlight the neuroanatomical underpinnings of executive dysfunction in CHD.
Abstract

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