Nystagmus and Equilibrium Symptom after Removal of Acoustic Neuroma.

DOI 6 References
  • Sato Minako
    Department of Otolaryngology, School of Medicine, Keio University
  • Kanzaki Jin
    Department of Otolaryngology, School of Medicine, Keio University
  • Takei Yasuhiko
    Department of Otolaryngology, School of Medicine, Keio University
  • Yamamoto Yoshizumi
    Department of Otolaryngology, School of Medicine, Keio University
  • Ikeda Shunya
    Department of Otolaryngology, School of Medicine, Keio University

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  • 聴神経腫よう患者の術後眼振所見と平衡機能

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Abstract

Fifty-four nystagmus tests were performed under infrared camera in 39 patients with unilateral acoustic neuroma surgery. Equilibrium symptoms were evaluated subjectively by the patients using a questionnaire.<BR>Spontaneous and positioning nystagmus occurred less frequently as time passed after surgery. However, postoperative head-shaking nystagmus usually occurred in approximately 80% of the patients. Regarding head-shaking nystagmus, two types were observed, the one-phase type to the unaffected side and the two-phase type to the unaffected following the that to the affected side.<BR>Compensation for nystagmus after surgery was demonstrated for a long time. However, compensation for equilibrium symptoms evaluated by questionnaire showed a good prognosis. Regarding the relation between age and compensation for nystagmus and/or for equilibrium symptoms, younger patients showed better compensation.

Journal

  • Equilibrium Research

    Equilibrium Research 54 (4), 327-331, 1995

    Japan Society for Equilibrium Research

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