EEG videorecordings

The establishment of electro-clinical correlations provided by direct obser vation and EEG-video recording of one or several seizures is, needed for th e diagnostic evaluation of partial epilepsy. Within the framework, of presu rgical evaluation, this stage is indispensable for the choice of further. s trategies (use of intracranial recording, implantation modalities). In the specific case of children, we reviewed the video-EEG recordings of the 26 p atients aged 3 to 15 years, who presented, with a partial epilepsy and for which they underwent a SEEG exploration and subsequent operation at the Sai nte-Anne Hospital betwwen 1986 and 1994 (within a series of 236 patients of all ages). The epilepsy was symptomatic in 25 children (16 dysembryoplasti c neuroepithelial tumors, 4 gangliogliomas, 5 dysplasias). There were 18 ca ses of temporal, 3 of frontal, 1 of opercular, 1 of parietal, 1 of occipita l and 2 of multilobar (parieto-occipital: 1, temporo-parieto-occipital: 1) epilepsy. For every children, average of 7 prolonged EEG-video sessions (du ring a 8 days period of hospital lisation) were performed, permitting rite recording of at least one seizure in 19 children. Eight of the Is children with temporal epilepsy presented much less than atypical much greater than ictal clinical symptoms. Direct observation and video-EEG recording of a se izure were indispensable in order to correlate clinical semiology with EEG data, and to define the subsequent presurgical strategy.