A case of polyradiculitis with hearing loss: analysis of auditory brain stem response.

A case of acute polyradiculoneuritis accompanied by rare complications of the VII, VIII and IX cranial nerve disorder was described. There was an elevation of the rubella virus antibody titer, which suggested the case had been infected before. Thirty-eight year-old woman complained of bilateral tinnitus and was proven audiometrically to have sensori-neural hearing loss. Electroacoustical examination disclosed that all the waves were suppressed and that wave I and V were barely detected, while wave II, III and IV were absent. The neurological and audiological disorders were successfully treated with corticosteroid, and the patient had neither sequelae nor recurrence.