A case of stapedial tinnitus due to misdirection of the facial nerve

DOI
  • HISASHI Kazutaka
    Department of Otorhinolaryngology, Faculty of Medicine Kyushu University
  • KOMUNE Sizuo
    Department of Otorhinolaryngology, Faculty of Medicine Kyushu University
  • UEMURA Takuya
    Department of Otorhinolaryngology, Faculty of Medicine Kyushu University

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Other Title
  • 顔面神経過誤支配によるアブミ骨筋性耳鳴の1例

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Description

A 54-year-old male with stapedial tinnitus following incidents of facial palsy is reported here. Affer resection of the stapedial muscle tendon the tinnitus and hearing loss associated with contraction of facial mimetic muscles disappeared completely The electromyograms of the stapedial muscle during intentional facial movements werer ecorded before and after the resection. The results showed the pitch of the stapedial tinnitus to be approximately 30 Hz. The mechanism of stapedial tinnitu is discussed.

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