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Predictors of cognitive function and recovery 10 years after traumatic brain injury in young children
Vicki Anderson1, Celia Godfrey, Jeffrey V Rosenfeld
1Department of Psychology, Royal Children's Hospital, Parkville, Victoria, 3052 Australia. vicki.anderson@rch.org.au
Insights
Children with severe traumatic brain injury (TBI) face lasting deficits, while milder cases often recover fully. Early childhood TBI recovery is protracted but can lead to age-appropriate progress up to 10 years post-injury.
Area of Science:
- Pediatric Neurology
- Neuroscience
- Developmental Psychology
Background:
- Childhood traumatic brain injury (TBI) significantly impacts functional outcomes.
- Long-term recovery data after pediatric TBI remains limited.
- Understanding recovery trajectories is crucial for intervention.
Purpose of the Study:
- To map cognitive and functional skill recovery up to 10 years post-TBI in early childhood.
- To determine the influence of injury severity, environment, pre-injury factors, and acute recovery on long-term outcomes.
Main Methods:
- Prospective, longitudinal study with a between-factor design.
- Forty children (aged 2-7 years) with TBI and 16 healthy controls were assessed.
- Evaluations included cognition, adaptive ability, executive function, and social/behavioral skills at multiple time points up to 10 years post-injury.
Main Results:
- Severe TBI correlated with the poorest outcomes, particularly in cognition.
- Recovery patterns were consistent across severity groups, with notable verbal skill improvement between 12-30 months and 10 years.
- Pre-injury abilities and family functioning predicted adaptive and social/behavioral outcomes, respectively.
Conclusions:
- Severe TBI in early childhood poses a high risk for persistent deficits.
- Children with less severe TBI generally achieve normal functional levels.
- Young children demonstrate age-appropriate progress up to 10 years post-injury, refuting 'growing into deficits' theories.
- Environmental factors play a role in adaptive and social/behavioral recovery.
Background And Objectives:
Childhood traumatic brain injury (TBI) has implications for functional outcomes, but few studies have documented long-term outcomes. The purpose of this study was to plot recovery of cognitive and functional skills after early childhood TBI to 10 years postinjury and to identify the contribution of injury, environment, preinjury characteristics, and acute functional recovery.
Methods:
Subjects were recruited consecutively to this prospective, longitudinal study, which used a between-factor design, with injury severity as the independent variable. Forty children with TBI aged 2 and 7 years were recruited on admission to a tertiary pediatric hospital, divided according to injury severity, and compared with 16 healthy controls acutely and 12 and 30 months and 10 years postinjury. Cognition, adaptive ability, executive function, and social/behavioral skills were examined.
Results:
Children with severe TBI had poorest outcomes, with deficits greatest for cognition. Recovery trajectories were similar across severity groups but with significant gains in verbal skills from 12 and 30 months to 12 months and 10 years. Predictors of outcome included preinjury ability (for adaptive function) and family function (social/behavioral skills).
Conclusions:
Results confirm a high risk of persisting deficits after severe TBI in early childhood. Children with less severe TBI appear to recover to function normally. Contrary to speculation about "growing into deficits," after protracted recovery to 30 months, young children make age-appropriate progress at least to 10 years postinsult. Environmental factors were found to contribute to adaptive and social/behavioral recovery.
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