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An intra-arterial electrode for intracranial electro-encephalogram recordings

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Summary

A new method for intracranial monitoring of brain electrical activity by means of an intra-arterial guide wire as electrode is described.

We carried out intracranial electro-encephalography (EEG) using an insulated Seeker Lite-10 guide wire 18 times in 14 patients: ten times in 6 patients with cerebral arteriovenous malformation (AVM) before embolization, and another 8 times in 8 patients with epilepsy. In all cases, a 2–5 times stronger high voltage potential EEG compared with scalp EEG could be recorded. In 3 patients with complex partial epilepsy, intra-arterial (IA) EEG was recorded under subdural strip electrode monitoring, and IAEEG at the sphenoidal portion of the middle cerebral artery was compared with subdural electrode recordings. Frequent interictal spike discharges recorded with subdural electrodes in the lesional medial temporal lobe were simultaneously visible on IAEEG recording.

This method is equivalent to that using a semi-invasive electrode, but ECoG recording can be performed at angiography. IAEEG is a method of electrode recording that has the possibility of clinical application.

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Authors and Affiliations

  1. Department of Neurosurgery, Section in the Department of Clinical Laboratory, Osaka Neurological Institute, Osaka, Japan

    H. Nakase M.D., H. Ohnishi, H. Touho & J. Karasawa

  2. Department of Neuropsychiatry, Section in the Department of Clinical Laboratory, Osaka Neurological Institute, Osaka, Japan

    S. Yamamoto

  3. Department of Neurophysiology, Section in the Department of Clinical Laboratory, Osaka Neurological Institute, Osaka, Japan

    K. Shimizu

Authors
  1. H. Nakase M.D.
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  2. H. Ohnishi
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  3. H. Touho
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  4. J. Karasawa
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  5. S. Yamamoto
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  6. K. Shimizu
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Nakase, H., Ohnishi, H., Touho, H. et al. An intra-arterial electrode for intracranial electro-encephalogram recordings. Acta neurochir 136, 103–105 (1995). https://doi.org/10.1007/BF01411445

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  • DOI: https://doi.org/10.1007/BF01411445

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