Evaluation of Functional Outcomes after Stapes Surgery in Patients with Clinical Otosclerosis in a Teaching Institution

Abstract

Introduction Otosclerosis is arimary disease of the temporal bone that leads to stapes ankylosis. Hearing loss is the main symptom. Treatment includes surgery, medical treatment, and sound amplification therapy alone or in combination. Objective To evaluate the functional outcomes ofatients with clinical diagnosis of otosclerosis undergoingrimary stapes surgery in a teaching institution. Method Retrospective descriptive study. Results A total of 210 ears of 163atients underwent stapes surgery. Of the 163atients, 116 (71.2%) underwent unilateral surgery and 47 (28.8%) underwent bilateral surgery. Six of the 210 operated ears had obliterative otosclerosis. The averagereoperative andostoperative air-bone gap was 32.06 and 4.39 dB, respectively. The meanreoperative andostoperative bone conduction threshold was 23.17 and 19.82 dB, respectively. A total of 184 (87.6%) ears had a residual air-bone gap <10 dB, and 196 (93.3%) had a residual air-bone gap ≤15 dB. Twoatients (0.95%) had severe sensorineural hearing loss. Conclusion Stapes surgery showed excellent functional hearing outcomes in this study. This surgery may beerformed in educational institutions with the supervision of experienced surgeons.