流行性耳下腺炎に基因する高度難聴症例の経過について

概要

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A child, aged 5, previously with normal hearing. One month ago he suffered from mumps with involvement of both parotid glands and high fever. In the course of mumps he developed 3 days after the onset, hearing impairment in the both ears. With administration of dexamethasone and vitamine Bi, the hearingloss became gradually normal in all tone range after a year and normal hearing was again impaired by the occurrence of epipharyngitis about three months after he had completely recovered. Whenever the patient suffered from epipharyngitis during recovery from hearingloss, his hearing was frequently extinguished. It is thought for the infection to invade occasionally the inner ear by way of the tube and middle ear and to lead to allergic alteration in the inner ear. But toxic neuritis in the inner ear might be a probable pathogenesis, too. From this result infectious neuro-allergic change on the inner ear might be present in the hearing of this case which was variable due to epipharyngitis or improved on the treatment of dexamethasone.
耳鼻と臨床会の論文