急性感音難聴で発症した脳幹梗塞の1例 Brainstem Infarction with Acute Sensorineural Hearing Loss

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著者

    • 那須 隆 NASU Takashi
    • 山形大学医学部耳鼻咽喉科教室 Department of Otolaryngology, Yamagata University School of Medicine
    • 中村 正 NAKMURA Tadashi
    • 山形大学医学部耳鼻咽喉科教室 Department of Otolaryngology, Yamagata University School of Medicine
    • 小池 修治 KOIKE Shuji
    • 山形大学医学部耳鼻咽喉科教室 Department of Otolaryngology, Yamagata University School of Medicine
    • 青柳 優 AOYAGI Masaru
    • 山形大学医学部耳鼻咽喉科教室 Department of Otolaryngology, Yamagata University School of Medicine

抄録

A patient with acute hearing loss and vertigo due to infarction involving the anterior--inferior cerebellar artery (AICA) is reported.<BR>A 64-year-old female complained of sudden-onset, severe, unilateral hearing loss and vertigo without any other neurological deficits. Neuro-otological examinations revealed a horizontal, spontaneous, positional, and gaze nystagmus toward the right. Pursuit eye movement and optokinetic nystagmus were unilaterally impaired and ABR showed the absence of waves II-IV and prolonged I-V interpeak latency difference. Based on finding of neuro-otological examination, brain stem lesion was suspected and neuroradiological examinations were performed. MRI showed a pontine infarction in the AICA area and angiography demonstrated stenosis of the right AICA thus the patient was diagnosed as having AICA syndrome.<BR>The clinical signs of AICA syndrome are occasionally similar to those of inner ear disorders. In such cases, neuro-otological examinations such as ENG and ABR are clinically useful in distinguishing AICA syndrome from inner ear diseases.

収録刊行物

  • Equilibrium research

    Equilibrium research 57(3), 289-296, 1998-06-01

    Japan Society for Equilibrium Research

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各種コード

  • NII論文ID(NAID)
    10008711068
  • NII書誌ID(NCID)
    AN00001485
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03855716
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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