-寺山教授就任10周年記念論文-:早期後天性梅毒による両側突発難聴の一例について

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Although sensorineural deafness is one of well-known manifestation of congenital and late acquired syphilis, its occurrence in early acquired syphilis is considerd rare. We report an unusual case of bilaterl sudden deafness which is probably due to early acquired syphilitic meningitis. A case-36 years old male visited our clinic on 9th May 1980 with the complaints of bilateral deafness and tinnitus of sudden onset which occured after severe headache of a week's duration. A battery of the audiometric examinations revealed profound sensorineural hearing loss of bilateral ears, poor discrimination and positive recruitment. Békésy audiometry showed Jerger type I bilaterally. In electrocochleography, CM was abolished but recruitment type AP and low negative SP were detected. Both ears were C. P. in caloric test. STS, TPHA and FTA-ABS were positive. We could confirm that STS and TPHA were negative from 1966 to February 1980, and thereby he was diagnosed as early acquired syphilis. Cerebrospinal fluid examination showed pleocytosis but normal protein content and normal pressure. STS and TPHA of CSF were negative. The patient was treated by administrations of high dose Penicillin and steroids for four weeks but his hearing acuity was not restored. Attention shoud be called for the fact that early acquired syphilis is one of the important etiology of sudden deafness.
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