Abstract
IntroductionOtosclerosis (OS) is the primary disease of the human temporal bone characterized by conductive hearing loss and tinnitus. The exact pathogenesis of tinnitus in otosclerosis patients is not known and factors affecting the tinnitus outcome in otosclerosis patients are still controversial. ObjectivesTo find the effect of stapedotomy on tinnitus for otosclerosis patients. MethodsFifty-six otosclerosis patients with preoperative tinnitus were enrolled to the study. Pure tone average Air-Bone Gap values, preoperative tinnitus pitch, Air-Bone Gap closure at tinnitus frequencies were evaluated for their effect on the postoperative outcome. ResultsLow pitch tinnitus had more favorable outcome compared to high pitch tinnitus (p=0.002). Postoperative average pure tone thresholds Air-Bone Gap values were not related to the postoperative tinnitus (p=0.213). There was no statistically significant difference between postoperative Air-Bone Gap closure at tinnitus frequency and improvement of high pitch tinnitus (p=0.427). There was a statistically significant difference between Air-Bone Gap improvement in tinnitus frequency and low pitch tinnitus recovery (p=0.026). ConclusionLow pitch tinnitus is more likely to be resolved after stapedotomy for patients with otosclerosis. High pitch tinnitus may not resolve even after closure of the Air-Bone Gap at tinnitus frequencies.
Highlights
Otosclerosis (OS) is the primary disease of the human temporal bone
Hearing AIDS and medical therapy have been recommended in certain conditions, small fenestra stapedotomy still remains the main choice in patients with conductive type hearing loss.[1]
Different from other studies, in this manuscript, we evaluated the effect of Air-Bone Gap closure at tinnitus frequencies on the low, middle and high pitch tinnitus status
Summary
Otosclerosis (OS) is the primary disease of the human temporal bone. It is an autosomal-dominant hereditary disease with variable penetrance. Progressive conductive hearing loss and tinnitus are the main symptoms. The most common area for stapedial fixation is the anterior crura. Sensorineural hearing loss can develop if the plaques involve the cochlea.[1]. Otosclerosis was described about two centuries ago; the exact pathogenesis is not fully understood. Hearing AIDS and medical therapy have been recommended in certain conditions, small fenestra stapedotomy still remains the main choice in patients with conductive type hearing loss.[1] The success of stapes surgery in patients with OS is evaluated with the results of postoperative hearing and the rate of Air-Bone Gap closure
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