title: [Change in otosclerosis presentation over two decades].
abstract: Presentation of otosclerosis in eighties and nineties was compared on the basis of analysis of patients' documentation. A group I of 80 patients treated in 1980-1990 and a group II of 148 patients treated in 1991-2000 were compared with regard to sex, age, incidence of oval window obliteration and bilateral disease. Bone conduction and air conduction threshold and air-bone gap were also compared. There was no difference between two groups regarding sex, age and bone conduction threshold. Oval window obliteration was found in 8 (10%) patients of group I and in 7 (4.7%) patients of group II and the difference was not significant. Bilateral otosclerosis was diagnosed in 77 (96.3%) patients of group I and in 121 (81.8%) patients of group II and the difference was significant (p < 0.01). Air conduction threshold and air-bone gap in patients treated in nineties were significantly smaller than in eighties (p < 0.001). In the last decade patients with otosclerosis presented with smaller hearing loss, smaller air-bone gap and had bilateral disease less frequently than patients in eighties.
authors.affiliation: Klinika Otolaryngologii AM w Lublinie.
authors.forename: Marcin
authors.initials: M
authors.lastname: Szymański
authors.forename: Wiesław
authors.initials: W
authors.lastname: Gołabek
authors.forename: Henryk
authors.initials: H
authors.lastname: Siwiec
mesh_terms: D000328:Adult; D001309:Auditory Threshold; D001844:Bone Conduction; D005260:Female; D006314:Hearing Loss, Conductive / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D010040:Otosclerosis / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology* / Q000601:surgery; D011044:Poland / Q000453:epidemiology; D012189:Retrospective Studies; D013201:Stapes Surgery; D013997:Time Factors; D016896:Treatment Outcome