Annals of Clinical Neurophysiology

The Korean Society of Clinical Neurophysiology (대한임상신경생리학회)
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Obvious Time Differences in Simultaneous Ictal Recordings with Scalp and Subdural Electrodes: One Patient with Mesial Temporal Lobe Epilepsy

두피전극과 경질막밑 전극으로 동시 기록한 발작기 뇌파에서의 뚜렷한 시간차이: 안쪽관자엽간질 환자 1예

  • Koo, Dae-Lim (Department of Neurology, Samsung Medical Center, Brain and Nerve Center, Sungkyunkwan University School of Medicine) ;
  • Song, Pamela (Department of Neurology, Samsung Medical Center, Brain and Nerve Center, Sungkyunkwan University School of Medicine) ;
  • Byun, So-Young (Department of Neurology, Samsung Medical Center, Brain and Nerve Center, Sungkyunkwan University School of Medicine) ;
  • Lee, Jung-Hwa (Department of Neurology, Jin Hospital) ;
  • Yoo, Nam-Tae (Department of Neurology, Samsung Medical Center) ;
  • Joo, Eun-Yeon (Department of Neurology, Samsung Medical Center, Brain and Nerve Center, Sungkyunkwan University School of Medicine) ;
  • Seo, Dae-Won (Department of Neurology, Samsung Medical Center, Brain and Nerve Center, Sungkyunkwan University School of Medicine) ;
  • Hong, Seung-Chyul (Department of Neurosurgery, Samsung Medical Center, Brain and Nerve Center, Sungkyunkwan University School of Medicine) ;
  • Hong, Seung-Bong (Department of Neurology, Samsung Medical Center, Brain and Nerve Center, Sungkyunkwan University School of Medicine)
  • 구대림 (성균관대학교 의과대학 삼성서울병원 뇌신경센터 신경과) ;
  • 송파멜라 (성균관대학교 의과대학 삼성서울병원 뇌신경센터 신경과) ;
  • 변소영 (성균관대학교 의과대학 삼성서울병원 뇌신경센터 신경과) ;
  • 이정화 (대구진병원 신경과) ;
  • 유남태 (삼성창원병원 신경과) ;
  • 주은연 (성균관대학교 의과대학 삼성서울병원 뇌신경센터 신경과) ;
  • 서대원 (성균관대학교 의과대학 삼성서울병원 뇌신경센터 신경과) ;
  • 홍승철 (성균관대학교 의과대학 삼성서울병원 뇌신경센터 신경외과) ;
  • 홍승봉 (성균관대학교 의과대학 삼성서울병원 뇌신경센터 신경과)
  • Received : 2011.03.25
  • Accepted : 2011.09.05
  • Published : 2011.12.30
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Abstract

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.

Keywords

References

  1. Steinhoff BJ, So NK, Lim S, Lüders HO. Ictal scalp EEG in temporal lobe epilepsy with unitemporal versus bitemporal interictal epileptiform discharges. Neurology 1995;45:889-896. https://doi.org/10.1212/WNL.45.5.889
  2. Cho JH, Heo K, Park SC, Chong JW, Park SA, Kim GS, et al. Ictal scalp EEG in mesial temporal lobe epilepsy patients with unilateral versus bilateral interictal epileptiform discharges. J Korean Neurol Assoc 2004;22:459-464.
  3. Gloor P. Preoperative electroencephalographic investigation in temporal lobe epilepsy: extracranial and intracranial recordings. Can J Neurol Sci 1991;18(4 Suppl):554-558. https://doi.org/10.1017/S0317167100032686
  4. Ma HI, Kang JK, Kwak KH, Lee JK, Lee SA. Combined bilateral depth and subdural electrode investigation in temporal lobe epilepsy. J Korean Neurol Assoc 2000;18:589-594.
  5. Assaf BA, Ebersole JS. Visual and quantitative ictal EEG predictors of outcome after temporal lobectomy. Epilepsia 1999;40:52-61. https://doi.org/10.1111/j.1528-1157.1999.tb01988.x
  6. Abraham K, Marsan CA. Patterns of cortical discharges and their relation to routine scalp electroencephalography. Electroencephalogr Clin Neurophysiol 1958;10:447-461. https://doi.org/10.1016/0013-4694(58)90006-3
  7. Ebner A, Hoppe M. Noninvasive electroencephalography and mesial temporal sclerosis. J Clin Neurophysiol 1995;12:23-31.
  8. Blume WT, Holloway GM, Wiebe S. Temporal epileptogenesis: localizing value of scalp and subdural interictal and ictal EEG data. Epilepsia 2001;42:508-514. https://doi.org/10.1046/j.1528-1157.2001.02700.x
  9. Ray A, Tao JX, Hawes-Ebersole SM, Ebersole JS. Localizing value of scalp EEG spikes: a simultaneous scalp and intracranial study. Clin Neurophysiol 2007;118:69-79. https://doi.org/10.1016/j.clinph.2006.09.010