ABSTRACT
Otosclerosis is one of the causes of hearing loss in different ages, which its treatment capability with surgery is remarkable. The goal of this study is to determine the extent of clinical and audiometric correlation with tympanotomy findings. In this study, all patients' have been studied in a prognostic manner. Suspected to otosclerosis, they were received to oto-rhino-laryngology department of Imam Khomeini hospital from April 1999 to September 2003. The differentiations studied were compared with studies done in other sources and areas. Then all of these patients have been performed stapedectomy surgery to restore hearing. During three weeks after surgery, the complication prevalence and the results of the patients treatment have been recorded, and compared with other sources. According to this study, it was determined that in the society studied, the prevalence rate of the disease in women were more common than men, and the majority of the patients have been received the treatments in the third and fourth decade of their life, and the family prevalent rate was less than the statistic of the world presented. The hearing loss was more conductive type the most frequent complication after surgery has been reported, was dizziness and a high percentage of the patients received a significant hearing recovery. Results of this study indicated that early diagnosis and exploratory tympanotoy of these patients could provide adequate hearing, and prevent severe hearing loss