Focal-onset myoclonic seizures and secondary bilateral synchrony

Tomoyuki Akiyama, Elizabeth J. Donner, Cristina Y. Go, Ayako Ochi, O. Carter Snead, James T. Rutka, Hiroshi Otsubo

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We present a child with myoclonic seizures, epileptic spasms and generalized epileptiform discharges on scalp EEG. Magnetoencephalography and coherence-phase analysis for scalp EEG suggested focal onset in the left hemisphere. Intracranial video EEG confirmed seizure onset in the left frontal lobe with ictal high-frequency oscillations. Left frontal lobectomy suppressed his seizures. Subsets of myoclonic seizures can be focal in origin despite bilaterally synchronized epileptiform discharges on scalp EEG.

Original languageEnglish
Pages (from-to)168-172
Number of pages5
JournalEpilepsy Research
Volume95
Issue number1-2
DOIs
Publication statusPublished - Jun 1 2011
Externally publishedYes

Keywords

  • Coherence-phase analysis
  • Ictal high frequency oscillations
  • Intracranial video EEG
  • Magnetoencephalography
  • Myoclonic seizures
  • Secondary bilateral synchrony

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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  • Cite this

    Akiyama, T., Donner, E. J., Go, C. Y., Ochi, A., Snead, O. C., Rutka, J. T., & Otsubo, H. (2011). Focal-onset myoclonic seizures and secondary bilateral synchrony. Epilepsy Research, 95(1-2), 168-172. https://doi.org/10.1016/j.eplepsyres.2011.02.006