Study of Cerebellar Infarction with Isolated Vertigo

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  • Utsumi Ai
    Department of Otolaryngology, Chigasaki Municipal Hospital
  • Enomoto Hiroyuki
    Department of Otolaryngology, Chigasaki Municipal Hospital
  • Yamamoto Kaoru
    Department of Otolaryngology, Yokosuka Kyosai Hospital
  • Kimura Yu
    Eda Kimura Ear, Nose, and Throat Clinic
  • Koizuka Izumi
    Department of Otolaryngology, St. Marianna University School of Medicine
  • Tsukuda Mamoru
    Department of Otolaryngology, Yokohama City University School of Medicine

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Other Title
  • めまいのみの訴えで入院した小脳梗塞症例の検討
  • メマイ ノミ ノ ウッタエ デ ニュウイン シタ ショウノウコウソク ショウレイ ノ ケントウ

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Abstract

Isolated vertigo is generally attributed to labyrinthine disease, but may also signal otherwise asymptomatic cerebellar infarction.<br>Of 309 subjects admitted between April 2004 and March 2009 for the single symptom of acute vertigo initially thought to be labyrinthine, four were found to have cerebellar infarction of the posterior inferior cerebellar artery area (PICA). All were over 60 years old and had risk factors including hypertension, diabetes mellitus, arrhythmia, and/or hyperlipidemia. Two had trunk ataxia, with magnetic resonance imaging (MRI) showing infarction within a few days. The other two could walk without apparent trunk ataxia, however, it took 4 to 7 days to find the infarction, mainly through neurological, neurootological, and MRI findings. Neurologically, astasia, dysbasia or trunk ataxia were important signs. Neurootologically, nystagmus and electronystagmographic testing involving eye tracking, saccade, and optokinetic patttens were useful.

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