Abstract
Long-term hearing changes were investigated in 63 patients with Meniere's disease (46 unilateral, 17 bilateral). In most patients with unilateral Meniere's disease, the hearing level noted on the initial visit remained unchanged for a long time. In young patients who had therapy at an early stage, hearing was improved or conserved at a good level. On the other hand, in most patients with bilateral disease, hearing on the initial visit was worse than in those with unilateral disease, and it became gradually worse. Those with late onset often had very poor hearing and early therapy was not possible. Hearing changes in unilateral and bilateral Meniere's disease appear to have different mechanism.
