Pre- and postoperative high-frequency audiometry in otosclerosis. A study of 53 cases.
A study was carried out to evaluate the results of stapes surgery in 53 cases of otosclerosis. The hearing function was measured pre- and postoperatively by means of conventional and high-frequency audiometry (Demlar 20K). The operative findings of the gradation of otosclerosis were compared with the pre- and postoperative audiometrical measurements. The results of this study point out that a clear relation exists between the preoperative high-tone audiogram and the gradation of otosclerosis. Stapedotomy does not influence the high-frequency threshold postoperatively. In conclusion, high-frequency audiometry can predict the state of stapes fixation in otosclerosis and this can be important in stapes surgery.
Tange
R A
RA
Department of Otorhinolaryngology, Universiteit van Amsterdam, The Netherlands.
Dreschler
W A
WA
D001299:Audiometry / Q000379:methods*; D001309:Auditory Threshold / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D010040:Otosclerosis / Q000175:diagnosis* / Q000601:surgery; D011182:Postoperative Care; D011300:Preoperative Care; D013201:Stapes Surgery