Profiles of cold executive function performance among pediatric acquired brain injury

Area of Science:

• Neuroscience
• Pediatric Neurology
• Cognitive Psychology

Background:

• Acquired brain injuries (ABI) in children, including perinatal ischemic stroke (PAS), traumatic brain injury (TBI), and brain tumors (BT), can lead to significant cognitive impairments.
• Executive functioning (EF) is crucial for daily activities and academic success, and its disruption can profoundly affect a child's development and quality of life.

Purpose of the Study:

• To compare cold executive functioning (EF) across three pediatric acquired brain injury (ABI) subtypes: perinatal ischemic stroke (PAS), traumatic brain injury (TBI), and brain tumors (BT).
• To identify distinct neuropsychological profiles associated with each ABI etiology to inform targeted interventions.

Main Methods:

• A cross-sectional study involving 50 children aged 6-18 years, divided into PAS (n=22), TBI (n=17), and BT (n=11) groups, each matched with a control participant.
• Neuropsychological assessments included tests for planning, attention, working memory, and verbal fluency, with data analyzed using non-parametric and ANCOVA methods, controlling for age and gender.

Main Results:

• Heterogeneous patterns of executive dysfunction were observed across ABI subtypes.
• Attention and working memory deficits were most pronounced in TBI, followed by BT and PAS. Verbal fluency was highest in PAS, while planning difficulties were most significant in BT.
• Post hoc analyses revealed pervasive planning, visuo-conceptual, and visuo-constructive impairments in the PAS group, and visuo-conceptual and visuo-constructive deficits in the TBI group when controlled for gender.

Conclusions:

• Distinct executive function profiles characterize pediatric ABI subtypes, with PAS linked to the most widespread impairments, TBI to selective deficits, and BT to specific planning challenges.
• These findings underscore the necessity of developing individualized cognitive rehabilitation strategies tailored to the specific ABI etiology and resulting cognitive profile.