Neurological Surgery No Shinkei Geka Volume 21, Issue 3 (March 1993)

How To Preserve The Facial Nerve In Acoustic Neurinoma Excision—Development of a microneurostimulator Tetsuji SEKIYA 1 , Takashi IWABUCHI 1 , Koichiro KIYOMURA 2 1Department of Neurosurgery, Hirosaki University School of Medicine 2MT Giken Keyword: Acoustic neurinoma , Electrical stimulation , Facial nerve pp.235-238
Published Date 1993/3/10
  • Abstract
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We developed a Micro-neurostimulator that is suitable for intracranial electrical stimulation of the facial nerve in excision of acoustic neurinomas. The tips of our Mic-ro-neurostimulator were thinner and finer than those of commercially-available bipolar forceps and therefore it was possible to stimulate tumor tissue and the facial nerve selectively. This facilitated precise excision of tumor tissue from the facial nerve without residual tumor tissue around it.

It was emphasized that the shape of the tips of stimu-lating electrodes and the stimulus intensity were the most important factors in obtaining reliable responses in preserving the facial nerve using intracranial electrical stimulation and evoked electromyographic responses.

Copyright © 1993, Igaku-Shoin Ltd. All rights reserved.


Neurological Surgery 脳神経外科
21巻3号 (1993年3月)
電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院