title: Evaluation of Functional Outcomes after Stapes Surgery in Patients with Clinical Otosclerosis in a Teaching Institution.
abstract: Introduction Otosclerosis is a primary 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 of patients with clinical diagnosis of otosclerosis undergoing primary stapes surgery in a teaching institution. Method Retrospective descriptive study. Results A total of 210 ears of 163 patients underwent stapes surgery. Of the 163 patients, 116 (71.2%) underwent unilateral surgery and 47 (28.8%) underwent bilateral surgery. Six of the 210 operated ears had obliterative otosclerosis. The average preoperative and postoperative air-bone gap was 32.06 and 4.39 dB, respectively. The mean preoperative and postoperative 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. Two patients (0.95%) had severe sensorineural hearing loss. Conclusion Stapes surgery showed excellent functional hearing outcomes in this study. This surgery may be performed in educational institutions with the supervision of experienced surgeons.
authors.affiliation: Department of Otolaryngology, Universidade de São Paulo, School of Medicine, São Paulo, São Paulo, Brazil.
authors.forename: José Celso Rodriques de
authors.initials: JC
authors.lastname: Souza
authors.affiliation: Department of Otolaryngology, Universidade de São Paulo, School of Medicine, São Paulo, São Paulo, Brazil.
authors.forename: Ricardo Ferreira
authors.initials: RF
authors.lastname: Bento
authors.affiliation: Department of Otolaryngology, Universidade de São Paulo, School of Medicine, São Paulo, São Paulo, Brazil ; Department of Otolaryngology, Anchieta Hospital, Brasília, DF, Brazil.
authors.forename: Larissa Vilela
authors.initials: LV
authors.lastname: Pereira
authors.affiliation: Department of Otolaryngology, Universidade de São Paulo, School of Medicine, São Paulo, São Paulo, Brazil.
authors.forename: Liliane
authors.initials: L
authors.lastname: Ikari
authors.affiliation: Department of Otolaryngology, Universidade de Mogi das Cruzes, Mogi das Cruzes, São Paulo, Brazil.
authors.forename: Stephanie Rugeri
authors.initials: SR
authors.lastname: Souza
authors.affiliation: Department of Otolaryngology, Universidade de São Paulo, School of Medicine, São Paulo, São Paulo, Brazil.
authors.forename: Ana Adelina Giantomasi
authors.initials: AA
authors.lastname: Della Torre
authors.affiliation: Department of Otolaryngology, Universidade de São Paulo, School of Medicine, São Paulo, São Paulo, Brazil.
authors.forename: Anna Carolina de Oliveira
authors.initials: AC
authors.lastname: Fonseca
keywords: hearing loss; otosclerosis; stapes mobilization; stapes surgery