Follow-up study of idiopathic generalized epilepsy with associated absence seizure and myoclonic epilepsy of infancy

摘要

Highlights ? Myoclonic seizures and absence seizures are rarely associated in Myoclonic epilepsy of infancy. ? IGE children featuring MEI associated with absence seizures have an excellent prognosis and seizure outcome. ? The electroclinical features of this group were equivalent to myoclonic epilepsy of infancy. Abstract We evaluated the long-term prognosis of patients featuring the association of absence s and myoclonic epilepsy of infancy. Our cohort consisted of 10 male subjects with mean age at seizure onset of 29 months. Follow-up data included seizure outcome and EEG findings. All individuals received antiepileptic drugs (AEDs) as monotherapy (6 patients) or polytherapy (4 patients) for a mean period of 24 months. Over a 30–60 month evaluation period (mean: 43 months), all patients were seizure-free. Follow-up data after withdrawal of antiepileptic therapy were obtained for a mean period of 22 months. None of the children did develop other age-related epileptic syndrome after AEDs discontinuation. Furthermore, follow-up EEG data after drugs withdrawal were normal and none of the patients showed cognitive impairment. In conclusion, we confirm that absence seizures may occur in association with myoclonic epilepsy of infancy. This condition shows excellent prognosis with either favourable neurologic development and seizure outcome in these children.