Obvious Time Differences in Simultaneous Ictal Recordings withScalp and Subdural Electrodes: One Patient with MesialTemporal Lobe Epilepsy |
Dae-lim Koo, Pamela Song, So Young Byun, Jung Hwa Lee, Nam Tae Yoo, Eun Yeon Joo, Dae-Won Seo, Seung Chyul Hong, and Seung Bong Hong |
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Copyright © 2011 The Korean Society of Clinical Neurophysiology |
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium,
provided the original work is properly cited. |
ABSTRACT |
We present a recordings of 37-year-old woman with simultaneous ictal scalp and subdural electrodes. The ictal rhythmon subdural electrocorticography (ECoG) started earlier (median 24.5 sec) and ended later (median 2.0 sec) compared toictal rhythm on scalp EEG. Eight ictal ECoG recordings were well localized to left temporal area, whereas ictal scalp EEGrecordings were not. Our case shows the obvious timing relations between two recordings, and different electrophysiologicinformation about localization of ictal onset zone. |
Key words:
Temporal lobe epilepsy, Electroencephalography, Subclinical seizure |
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