Extratemporal epilepsy in children: candidate selection and surgical treatment.

From June 1988 to June 1998, 60 children with extratemporal epilepsies (EE), most of whom were symptomatic, underwent surgery. All patients were studied by means of CT scanning, MRI and scalp EEG. Video-telemetry was used in 40 cases. Intracranial electrodes were placed in 10. Intraoperative ECoG was used in the 35 children who underwent resective procedures and in the 25 in whom disconnection was performed. Surgical procedures were as follows: 24 lesionectomies, 25 disconnecting procedures, 7 polectomies and/or lobectomies, 3 corticectomies and 1 anatomical hemispherectomy. After at least 1 year's follow-up in 48 children, to date 38 are in Engel class I, 7 in class II, 1 in class III and 2 in class IV. That is to say, in 46 of the 48, surgical outcomes ranges from very good to at least worthwhile, as reflected in their classification in Engel class III.