Anatomical and Functional Characterization in Children With Unilateral Cerebral Palsy: An Atlas-Based Analysis.
Claudio L Ferre, Jason B Carmel, Véronique H Flamand and 2 others
PMID 31983314WHAT IT FOUND
In children with unilateral cerebral palsy, whole-brain anatomical patterns tracked hand function more closely than lesion type alone.
Children with periventricular lesions had better hand function than children with middle cerebral artery lesions.
Key findings
01Children with periventricular lesions had better hand function than children with middle cerebral artery lesions on all three hand function tests.
02Whole-brain anatomical patterns were more closely associated with hand function than lesion type alone.
03Some children with middle cerebral artery lesions had brain volume patterns that clustered more closely with children who had periventricular lesions than with other children with middle cerebral artery lesions.
STILL TO COME
How it was doneWhat they foundWhat it means for OTs
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What it does not show
The study analysed 198 brain regions with only 40 children with unilateral cerebral palsy, so the findings need confirmation in larger samples. Hand function was not measured in the typically developing comparison group, so direct comparisons of hand function with typical development were not possible. The children with unilateral cerebral palsy had to lift their more affected arm, grasp light objects, follow instructions, and have no severe spasticity or recent upper limb surgery, so the sample excludes many children with more severe impairments. Automated brain segmentation is an approximation and may be less reliable for small structures or brains with severe anatomical abnormality. The typically developing images came from a different database with different scanning parameters, which may affect volume comparisons. The study only looked at brain volume, not white matter pathways or brain activity, and did not test whether these patterns predict treatment response or future recovery.
Declared interests
The authors declared no potential conflicts of interest. The paper does not state who funded this analysis.
The easy way to misread this
Do not use these findings to predict how a child will respond to therapy. The study measured hand function once and related it to brain volume; it did not test an intervention or follow children over time.