Cognitive outcome of parietooccipital resection in children with epilepsy
Sarah Lippé1, Christine Bulteau, Georg Dorfmuller
1Inserm, U663, Paris, France. sarah.lippe@umontreal.ca
Insights
Early epilepsy surgery in children with posterior brain lesions can optimize cognitive skills like reading and arithmetic, despite some visual deficits. This highlights brain plasticity
Area of Science:
- Pediatric Neurology
- Neurodevelopmental Disorders
- Epilepsy Surgery
Background:
- Epilepsy caused by developmental lesions, such as cortical dysplasia, often requires surgical intervention.
- Unilateral neurosurgery of the occipitoparietal lobes is a treatment option for intractable focal epilepsy in children.
Purpose of the Study:
- To assess the long-term neuropsychological development of children following unilateral occipitoparietal lobe surgery for epilepsy.
- To evaluate the impact of epilepsy surgery on cognitive functions in young patients.
Main Methods:
- A cohort of five children with epilepsy due to developmental lesions underwent unilateral neurosurgery.
- Neuropsychological development was followed for 3-7 years post-surgery.
Main Results:
- Two children achieved verbal intelligence quotients (IQ) above 100, while three had verbal IQs between 65 and 80.
- All participants exhibited deficits in nonverbal IQ, visual attention, object recognition, and praxis.
- Despite deficits, results indicated that brain plasticity enabled the development of schooling-level cognitive skills (reading, arithmetic).
Conclusions:
- While visual perceptual recovery was limited, early epilepsy surgery in children with posterior intractable epilepsies can optimize overall cognitive outcomes.
- Long-term follow-up suggests potential for significant cognitive gains, particularly in verbal functions and academic skills.
Purpose:
We followed the neuropsychological development of five children who underwent unilateral neurosurgery of the occipitoparietal lobes as a treatment for epilepsy caused by a developmental lesion (cortical dysplasia).
Methods:
The follow-up period ranged from 3-7 years postsurgery.
Results:
Two participants had a verbal intelligence quotient (IQ) >100 and three had a verbal IQ between 65 and 80. All five children had abnormal nonverbal IQ and exhibited deficits related to visual attention, object recognition, and praxis. Nevertheless, our results suggest that brain plasticity after parietooccipital epilepsy surgery in young children allows for a schooling level of cognitive skills such as reading and arithmetic.
Discussion:
Although recovery for visual perceptual cognition was more limited than for verbal functions, long-term neuropsychological outcomes showed that early surgery for epilepsy offers the possibility of optimizing cognitive outcomes in children with posterior intractable epilepsies.
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