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Japanese

Distal nerve evoked potential from transcranial stimulation of the cerebral cortex. Hideo MATSUDA 1 , Nobuaki NAKATA 1 , Toshiya YASUNAMI 1 , Naohiro YANAI 1 , Iming JOU 1 , Mitsuo YOSHIMURA 1 , Akira SHIMAZU 1 1Department of Orthopaedic Surgery, Osaka City University Medical School pp.124-137
Published Date 1988/2/10
DOI https://doi.org/10.11477/mf.1431906171
  • Abstract
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The usefulness of clinical application of spinal motor evoked potential (MEP) and peripheral nerve MEP elicited by transcranial stimulation (TCS) of the cerebral cortex was described in reference especially to the safety of the procedure. Postoperative motor and sensory disturbances can now be prevented or reduced greatly by evaluating spinal MEP together with spinal somatosensory evoked potential (spinal SEP) during surgery. Spinal MEPs consist of fast and large spike potentials and slow potentials, the occurence of which is not consistent. MEPs are affected by anesthesia, but this tendency is more notable in the latter. For this reason, simultaneous recording above and below the lesion is necessary for spinal monitoring using to sinal MEP as the index. The percent accuracy of the diagnoses in 25 patients with compressive myelopathy and 12 patients with spinal cord tumor was 91.9% according to spinal MEP and 86.5% according to spinal SEP from cauda equina stimulation.


Copyright © 1988, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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