Somatosensory phenomena elicited by electrical stimulation of hippocampus: Insight into the ictal network.

Details

Serval ID
serval:BIB_B60FBD3E41DA
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Institution
Title
Somatosensory phenomena elicited by electrical stimulation of hippocampus: Insight into the ictal network.
Journal
Epilepsy & behavior reports
Author(s)
Vinding Merinder T., Rásonyi G., Tsiropoulos I., Jespersen B., Ryvlin P., Fabricius M., Beniczky S.
ISSN
2589-9864 (Electronic)
ISSN-L
2589-9864
Publication state
Published
Issued date
2020
Peer-reviewed
Oui
Volume
14
Pages
100387
Language
english
Notes
Publication types: Case Reports
Publication Status: epublish
Abstract
Up to 11% of patients with mesial temporal lobe epilepsy experience somatosensory auras, although these structures do not have any somatosensory physiological representation. We present the case of a patient with left mesial temporal lobe epilepsy who had somatosensory auras on the right side of the body. Stereo-EEG recording demonstrated seizure onset in the left mesial temporal structures, with propagation to the sensory cortices, when the patient experienced the somatosensory aura. Direct electrical stimulation of both the left amygdala and the hippocampus elicited the patient's habitual, somatosensory aura, with afterdischarges propagating to sensory cortices. These unusual responses to cortical stimulation suggest that in patients with epilepsy, aberrant neural networks are established, which have an essential role in ictogenesis.
Keywords
Aura, Epilepsy, Hippocampus, Somatosensory, Stereo-EEG, Stimulation
Pubmed
Open Access
Yes
Create date
02/10/2020 13:14
Last modification date
12/06/2021 6:34
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