High frequency oscillation analysis of intracranial 14 and 6 Hz-positive spikes and interictal epileptiform discharges in a patient with occipital lobe epilepsy

DOI Web Site 参考文献16件 オープンアクセス
  • Watanabe Eriko
    Department of Clinical Chemistry and Laboratory Medicine, Kyushu University Hospital
  • Mukae Nobutaka
    Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University
  • Sakata Ayumi
    Department of Clinical Chemistry and Laboratory Medicine, Kyushu University Hospital
  • Shimogawa Takafumi
    Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University
  • Shigeto Hiroshi
    Division of Medical Technology, Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University
  • Hotta Taeko
    Department of Clinical Chemistry and Laboratory Medicine, Kyushu University Hospital
  • Kang Dongchong
    Department of Clinical Chemistry and Laboratory Medicine, Kyushu University Hospital
  • Yoshimoto Koji
    Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University
  • Morioka Takato
    Department of Neurosurgery, Harasanshin Hospital

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<p>Background: It is generally accepted that 14 and 6 Hz-positive spikes (14/6 Hz PS) are normal variant electroencephalographic (EEG) patterns. Analysis of high frequency oscillations (HFOs) including fast oscillations (FOs) of extracranial EEG containing 14/6 Hz PS is difficult.</p><p>Case report: We performed an HFO analysis of the intracranial 14/6 Hz PS and interictal epileptiform discharges (IEDs) in a patient with occipital lobe epilepsy, who underwent simultaneous extracranial and intracranial EEG recordings. The 14/6 Hz PS were recorded on both extracranial and intracranial EEGs with the same waveform but different amplitudes. In contrast, the extracranial IEDs corresponding to every intracranial IED were not recorded. Intracranial 14/6 Hz PS did not have superimposing HFOs, while the intracranial IEDs had superimposing FOs such as high γ activities.</p><p>Conclusion: The finding that no HFOs were detected in intracranial 14/6 Hz PS further supports the notion that 14/6 Hz PS are not epileptogenic.</p>

収録刊行物

  • Epilepsy & Seizure

    Epilepsy & Seizure 14 (1), 10-16, 2022

    一般社団法人 日本てんかん学会

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