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Hemiparetic forms of cerebral palsy in relation to epilepsy and mental retardation
Insights
Epileptic abnormalities on EEG are common in children with hemiparetic cerebral palsy (CP), but clinical epilepsy is less frequent. Clinical epilepsy is linked to lower IQ, particularly with left-sided hemiparesis.
Area of Science:
- Neurology
- Pediatrics
- Clinical Neurophysiology
Background:
- Hemiparetic cerebral palsy (CP) affects motor function and can be associated with neurological comorbidities.
- Epilepsy is a common co-occurrence in children with CP, impacting development and quality of life.
Purpose of the Study:
- To investigate the relationship between EEG findings, clinical epilepsy, and cognitive performance in children with hemiparetic CP.
- To determine the laterality of CP and its correlation with epilepsy and mental outcomes.
Main Methods:
- Clinical examinations, electroencephalography (EEG), and computed tomography (CT) scans were performed on 51 children with hemiparetic CP.
- Assessment included mental performance, CP laterality, and epilepsy incidence.
Main Results:
- Eighty percent of children exhibited epileptic abnormalities on EEG, yet less than half presented with clinical epilepsy.
- Clinical seizures were more frequent in children with right-sided hemiparesis.
- Focal or epileptic EEG changes were common in right-hemisphere involvement but did not affect mental performance without clinical seizures.
- Lower IQ scores were observed in patients with clinical epilepsy, especially those with left-sided hemiparesis.
Conclusions:
- EEG abnormalities are prevalent in hemiparetic CP, but clinical manifestation of epilepsy varies.
- The laterality of hemiparesis influences both seizure frequency and cognitive outcomes.
- Clinical epilepsy, particularly with left-sided hemiparesis, is associated with reduced intellectual performance in this population.
Abstract:
Fifty-one children with hemiparetic cerebral palsy underwent clinical, EEG and CT examinations to assess mental performance, laterality of CP and incidence of epilepsy, 80 per cent of the children had epileptic abnormalities on EEG, but less than half had clinical signs of epilepsy. Clinical paroxysms were more frequent in those with right-sided hemiparesis. Focal or epileptic EEG changes were usual in those with right-hemisphere involvement, but unless clinical paroxysms developed, these had no bearing on mental performance. Lower IQ was found in the patients with clinical epilepsy--in nearly all cases with left-sided hemiparesis and in half of those with right-sided hemiparesis.