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Event-related Potentials During Target-response Tasks to Study Cognitive Processes of Upper Limb Use in Children with Unilateral Cerebral Palsy
Published on: January 11, 2016
Neuroradiology can predict the development of hand function in children with unilateral cerebral palsy
Marie Holmefur1, Annika Kits, Jakob Bergström
1School of Health and Medical Sciences, Örebro University, Örebro, Sweden. marie.holmefur@oru.se
Insights
Brain imaging can predict hand function development in children with unilateral cerebral palsy (CP). Absence of basal ganglia and thalamus lesions indicates better hand function outcomes, aiding early intervention planning.
Area of Science:
- Pediatric Neurology
- Neuroimaging
- Developmental Pediatrics
Background:
- Significant variability exists in the development of hand function among children with unilateral cerebral palsy (CP).
- Understanding predictors of hand function is crucial for targeted interventions.
Purpose of the Study:
- To investigate the predictive value of anatomical brain abnormalities for hand function development in unilateral CP.
- To correlate specific brain lesion characteristics with functional outcomes.
Main Methods:
- Longitudinal assessment of 32 children with unilateral CP (aged 18 months to 8 years) using the Assisting Hand Assessment (AHA).
- Analysis of brain imaging (CT/MRI) for lesion patterns, including gray matter location and white matter extent.
- Application of nonlinear mixed-effects models to determine rates and limits of functional development based on lesion characteristics.
Main Results:
- Absence of concurrent basal ganglia and thalamus lesions was the strongest predictor of better hand function development, irrespective of lesion type.
- Brain lesion patterns and white matter damage extent also predicted hand function.
- Unilateral or bilateral damage presence did not show predictive value.
Conclusions:
- Neuroradiological findings offer a basis for predicting the future development of affected hand use in young children with unilateral CP.
- Identifying specific brain lesion characteristics can guide prognostic assessments and therapeutic strategies.
Background:
Much variation is found in the development of hand function in children with unilateral cerebral palsy (CP).
Objective:
. To explore how anatomic brain abnormalities can be used to predict the development of hand function.
Methods:
A total of 32 children with unilateral CP (16 boys and 16 girls) were evaluated at least once a year by the Assisting Hand Assessment (AHA). The data collection covered an age range from 18 months to 8 years (mean time in study, 4 years and 6 months). Computerized tomography or magnetic resonance imaging of the brain were assessed for patterns of brain damage, including the location of gray and extent of white-matter damage. The children were divided into groups according to lesion characteristics, and a series of univariate models were analyzed with a nonlinear mixed-effects model. The rate and maximum limit of development were calculated.
Results:
The highest predictive power of better development of hand function was the absence of a concurrent lesion to the basal ganglia and thalamus, independent of the basic type of brain lesion. This model predicted both the rate of increasing ability and hand function at age 8 years. Hand function was also predicted by the basic pattern of damage and by the extent of white-matter damage. The presence of unilateral or bilateral damage had no predictive value.
Conclusions:
Neuroradiological findings can be used to make a crude prediction of the future development of the use of the affected hand in young children with unilateral CP.
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