The necessity for sphenoidal electrodes in the presurgical evaluation of temporal lobe epilepsy: pro position.
Publication/Presentation Date
1-1-2003
Abstract
Whether sphenoidal electrodes should be used in the presurgical evaluation of people with refractory epilepsy has remained controversial. Many studies have been published touting their advantages, or conversely, their lack of benefit. The present paper reviews the evidence supporting the utility of sphenoidal electrodes. In principle, sphenoidal electrodes have an advantage over laterally placed scalp electrodes in detecting inferiorly directed mesial temporal discharges. Published studies demonstrate that sphenoidal electrodes are more sensitive than scalp electrodes and sometimes detect interictal spikes and seizures not seen with scalp electrodes. While the net added yield is relatively low, perhaps 5 to 10%, those patients in whom sphenoidal electrodes provide unique localizing information have much to gain. Sphenoidal electrodes may spare some patients unnecessary intracranial electrode investigation and permit surgery for others.
Volume
20
Issue
5
First Page
299
Last Page
304
ISSN
0736-0258
Published In/Presented At
Sperling, M. R., & Guina, L. (2003). The necessity for sphenoidal electrodes in the presurgical evaluation of temporal lobe epilepsy: pro position. Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society, 20(5), 299–304. https://doi.org/10.1097/00004691-200309000-00001
Disciplines
Medicine and Health Sciences
PubMedID
14701990
Department(s)
Department of Medicine
Document Type
Article