急性感音難聴，めまいで発症した椎骨脳底動脈閉塞例

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  • A Case of Vertebra-basilar Artery Occlusion with Vertigo and Acute Sensorineural Hearing Loss
  • 臨床 急性感音難聴,めまいで発症した椎骨脳底動脈閉塞例
  • リンショウ キュウセイカンオン ナンチョウ,メマイ デ ハッショウ シタ ツイコツ ノウテイ ドウミャク ヘイソクレイ

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<p>We report the case of a patient who presented with vertigo and acute sensorineural hearing loss due to multiple cerebral infarctions caused by basilar artery occlusion. A 55-year-old man was admitted to our hospital complaining of fullness in his right ear and vertigo. No other neurological deficits were noted. Neurological examination revealed right-sided sensorineural hearing loss, however, no nystagmus was seen, even with the intense subjective symptom of vertigo. Based on the findings, the patient was diagnosed as having sudden deafness with vertigo.</p><p>After hospitalization, he developed symptoms of cranial neuropathy. Magnetic resonance imaging (MRI) demonstrated cerebellopontine and medulla oblongata infarctions. The symptoms were suspected to be due to occlusion of the basilar artery, because the patient subsequently developed the locked-in syndrome, in which vertical eye movements and blinking occur spontaneously.</p><p>We have previously treated one patient with anterior inferior cerebellar artery syndrome and six patients with posterior inferior cerebellar artery syndromes. In all of these cases, the diagnosis was made early by MRI examination conducted at an early stage. Even in patients with suspected inner ear disorders, it is important to pay attention to the possibility of a cerebrovascular disorder and perform neurologic and MRI examinations, especially in cases with underlying diseases that increase the risk for arteriosclerosis, such as hypertension and diabetes mellitus.</p>

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