Epilepsy and Mental Retardation in Children with Cerebral Palsy – Bulgarian Study

Epilepsy is common in children with cerebral palsy (CP). In a group of 521 children with cerebral palsy it was found that 58% (n = 303) of the affected had epilepsy and 74.5% (n = 388) had mental retardation. We found ahigher percentage of symptomatic epilepsy in a combination of CP with mental retardation – 84.2% (n = 255), while only 15.8% (n = 48) of children with normal intellect had epilepsy. In our CP patients, the focal seizures were the most common – 34.7% (n = 181), followed by the secondary generalized 29.6% (n = 154) and the generalized seizures (tonic, clonic and generalized tonicclonic) 25.3% (n = 132), most often with early onset, with 43.5% (n = 132) of them with onset in the first year of life. The earlier onset of the epileptic seizures correlated with a more severe mental retardation. We found that symptomatic epilepsy and severe mental retardation are most common in children with spastic quadriparesis.