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Japanese

Treatment of Hemifacial Spasm with Type A Botulinum Toxin (AGN 191622):A Dose Finding Study and the Evaluation of Clinical Effect with Electromyography Takahiro Mezaki 1 , Ryuji Kaji 2 , Jun Kimura 2 , Nobuya Ogawa 3 1Department of Neurology, Sakakibara Hakuho Hospital 2Department of Neurology, Kyoto University Hospital 3Ehime University Keyword: hemifacial spasm , botulinum toxin , therapy , dose finding study , electromyography pp.427-432
Published Date 1999/5/1
DOI https://doi.org/10.11477/mf.1406901438
  • Abstract
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Forty-one patients with hemifacial spasm had an in-jection of type A botulinum toxin (AGN 191622; Aller-gan Co. Ltd., Irvine, CA). Patients were randomly di-vided into 3 groups by the injection dose: group L (1 unit; 14 patients), group M (5 units; 14 patients), and group H (10 units; 13 patients).Half of the dose was injected into the orbicularis oculi and the rest into the zygomaticus major muscles on the affected side. The clinical effect and electromyogram were evaluated at 2 weeks after the injection.

The clinical benefit was dependent on the injection dose, and group H showed the highest rate of im-provement (84.6%).


Copyright © 1999, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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