An Unusual Case with Periodic Nystagmus on Lateral Gaze during Vertigo Attack

DOI 23 References Open Access
  • Nishiike Suetaka
    Department of Otolaryngology, Kawasaki Medical School
  • Kitahara Tadashi
    Department of Otolaryngology and Sensory Organ Surgery, Osaka University Graduate School of Medicine
  • Yorifuji Shiro
    Department of Functional Diagnostic Science, Osaka Universiyt Graduate School of Medicine
  • Takeda Noriaki
    Department of Otolaryngology, University of Tokushima School Medicine

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Other Title
  • めまい発作に伴い左右側方注視眼振が周期性に変化した特異な１症例

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Description

We report on a case with periodic nystagmus on lateral gaze during vertigo attack. The case is a 19-year-old woman who had repeated vertigo attacks in the early stage of the disease. During remission, she had continuous nystagmus on lateral gaze with a large amplitude. During vertigo attack, she had periodic nystagmus with a small amplitude on lateral gaze with null periods of 8s. At onset, her tentative diagnosis was spinocerebellar degeneration such as dentatorubral-pallidoluysian atrophy because of brain stem tegmentum and cerebellar vermis atrophy identified on MRI, but brainstem encephalitis and cerebellitis couldn't be excluded. Periodic nystagmus during vertigo attack may be induced by the depression of higher neural control which was indicated by lesions in the cerebellar vermis shown on MRI.

Journal

  • Equilibrium Research

    Equilibrium Research 64 (3), 157-163, 2005

    Japan Society for Equilibrium Research

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