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KMID : 0861220110130020093
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Journal of the Korean Society Clinical Neurophysiology
2011 Volume.13 No. 2 p.93 ~ p.96
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Obvious Time Differences in Simultaneous Ictal Recordings with Scalp and Subdural Electrodes: One Patient with Mesial Temporal Lobe Epilepsy
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Koo Dae-Lim
Song Pamela
Byun So-Young
Lee Jung-Hwa
Yoo Nam-Tae
Joo Eun-Yeon
Seo Dae-Won
Hong Seung-Chyul
Hong Seung-Bong
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Abstract
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We present a recordings of 37-year-old woman with simultaneous ictal scalp and subdural electrodes. The ictal rhythm on subdural electrocorticography (ECoG) started earlier (median 24.5 sec) and ended later (median 2.0 sec) compared to ictal rhythm on scalp EEG. Eight ictal ECoG recordings were well localized to left temporal area, whereas ictal scalp EEG recordings were not. Our case shows the obvious timing relations between two recordings, and different electrophysiologic information about localization of ictal onset zone.
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KEYWORD
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Temporal lobe epilepsy, Electroencephalography, Subclinical seizure
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