[Electrophysiologic investigation of the anterior temporal and frontal lobes: sphenoidal and intraorbital electrodes].
The authors have evaluated the interest of sphenoidal electrodes in detection of internal temporal spikes, and intra-orbital electrodes in the detection of orbito-frontal spikes. From a study of 26 patients, 21 with sphenoidal electrodes, 3 with intra-orbital electrodes and 2 with both electrodes, they observed the sensitivity and specificity of such electrodes in detecting spikes with no traduction upon extra-cranial electrodes, or with an unsuspected traduction as spikes at a distance from deep electrodes, or spikes on 2 foci, or bisynchronous discharges. Sphenoidal and intra-oribital electrodes constitute a non-invasive method that provides excellent information in the exploration of the mesiobasal cerebral face. Indications for the use of such a method are complex absences without EEG traduction or with an unsuspected traduction and without abnormalities on CT scan, in the context of functional surgery of epilepsy.
Giroud
M
M
Service de neurologie, hôpital général, Dijon, France.
Bron
A
A
Gras
P
P
Septien
L
L
Soichot
P
P
Dumas
R
R
D000293:Adolescent; D000328:Adult; D001921:Brain / Q000502:physiology*; D004558:Electric Stimulation; D004569:Electroencephalography; D004594:Electrophysiology; D005260:Female; D005625:Frontal Lobe / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000033:anatomy & histology / Q000502:physiology*; D013100:Sphenoid Bone / Q000033:anatomy & histology / Q000502:physiology*; D014057:Tomography, X-Ray Computed
L'exploration électrophysiologique de la face basale du lobe temporal et du lobe frontal: intérêt des électrodes sphénoïdales et intraorbitaires.