[EEG and video-EEG explorations in refractory partial epilepsy].
The assessment of drug -resistant partial epilepsy by electrophysiological explorations (based on non-invasive EEG) involves two types of analysis: the study of the seizures, primarily by video-EEG exploration, and the study of interictal activities based on visual analysis, and in some centers on techniques of source localization (high resolution EEG and magnetoencephalography, MEG). Seizure recording can be used to confirm the focal nature and the epileptic origin of the seizure as well as other features such as severity (secondary generalization, frequency, falls etc.). In the pre-surgical approach, the video-EEG recordings enable study of the electro-clinical correlations and allow assumptions on the anatomical localization of the epileptogenic zone. Precise analysis of the localization of the interictal activities (especially within the framework of extra-temporal epilepsies) based on source localization methods, makes it possible to put forth assumptions on the localization of the irritative zone.
Service de Neurophysiologie Clinique et d'Epileptologie, Hôpital de la Timone, 264 boulevard Saint-Pierre, 13385 Marseille, France. fbartolo@medecine.univ-mrs.fr
F
F
Bartolomei
M
M
Gavaret
J-M
JM
Badier
P
P
Marquis
P
P
Chauvel
D000927:Anticonvulsants / Q000627:therapeutic use; D001921:Brain / Q000503:physiopathology; D004351:Drug Resistance; D004569:Electroencephalography / Q000295:instrumentation / Q000379:methods / Q000592:standards; D004828:Epilepsies, Partial / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D015225:Magnetoencephalography; D018670:Monitoring, Ambulatory; D011300:Preoperative Care; D014741:Video Recording / Q000379:methods
D000927:Anticonvulsants