Details

Autor(en) / Beteiligte

• Watanabe, Eriko
• Mukae, Nobutaka
• Sakata, Ayumi
• Shimogawa, Takafumi
• Shigeto, Hiroshi
• Hotta, Taeko
• Kang, Dongchong
• Yoshimoto, Koji
• Morioka, Takato

Titel

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

Ist Teil von

• Epilepsy & Seizure, 2022, Vol.14(1), pp.10-16

Ort / Verlag

JAPAN EPILEPSY SOCIETY

Erscheinungsjahr

2022

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• 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.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.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.