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Japanese

A simplified method to monitor oculomotor nerve function in midbrain surgery:recordings of compound muscle action potentials by percutaneous superior orbital electrode Tetsuji SEKIYA 1 , Toru HATAYAMA 1 , Norihito SHIMAMURA 1 , Shigeharu SUZUKI 1 , Masato TAMURA 2 1Department of Neurosurgery, Hirosaki University School of Medicine 2Department of Ophthalmology, Hirosaki University School of Medicine Keyword: evoked potentials , intraoperative monitoring , midbrain , oculomotor nerve , surgery pp.987-992
Published Date 1997/11/10
DOI https://doi.org/10.11477/mf.1436901478
  • Abstract
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We report a simple and easily-applicable method to intraoperatively monitor the oculomotor nerve and ocu-lomotor nucleus in the brainstem. A needle electrode is inserted into the space just beneath the superior roof of the orbit. With this superior orbital electrode, evoked compound muscle action potentials from the superior rectus and the levator palpebrae superioris muscles were recorded. The nuclei for these two muscles are lo-cated caudally in the midline of the midbrain. The re-sponses from the superior orbital electrode, therefore, give the surgeons useful intraoperative guidance during surgery for pineal region tumors and midbrain gliomas.


Copyright © 1997, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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