Examination of idiopathic bilateral sensorineural hearing loss followed up over the long-term

The epidemiology and the clinical features were examined in 107 patients with idiopathic bilateral sensorineural hearing loss who could be followed up for ten years or more. The peak age of incidence existed a past neither report nor change and was in one's forties with less than ten years old. These cases were divided into the adult-onset from and the young appearance of disease type. As for the young appearance of disease type, there were a lot of people who have family medical histories of hard hearing, and were advanced auditory disorder. There was a case who repeated dizziness and was difficult to discriminate with Meniere's disease. Grade1 and Grade2 accounted for 95% at the first medical examination, but finally examination, the half was Grade3 or Grade4. So, it was a result of showing that this disease social influence was large.