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High-resolution computed tomography and pure-tone audiometry in patients with otosclerosis in the spongiotic phase

Published online by Cambridge University Press:  04 July 2022

O P L Zanini*
Affiliation:
Department of Otolaryngology – Head and Neck Surgery, Federal University of Paraná Curitiba, Paraná, Brazil
L O Coelho
Affiliation:
Center for Advanced Diagnostic Imaging – DAPI, Paraná, Brazil
R Hamerschmidt
Affiliation:
Department of Otolaryngology – Head and Neck Surgery, Federal University of Paraná Curitiba, Paraná, Brazil
M Buschle
Affiliation:
Department of Otolaryngology – Head and Neck Surgery, Federal University of Paraná Curitiba, Paraná, Brazil
J E F Matias
Affiliation:
Department of Surgery, Federal University of Paraná Curitiba, Paraná, Brazil
*
Author for correspondence: Dr Otávio Pereira Lima Zanini, Avenida Iguaçu, 3233, Curitiba, Brazil, CEP 80240-031 E-mail: otaviozanini@gmail.com

Abstract

Objective

There is no consensus in the literature regarding the relationship between high-resolution computed tomography findings and hearing thresholds in pure-tone audiometry in otosclerosis. This study evaluated the association between high-resolution computed tomography findings and pure-tone audiometry in otosclerosis in the spongiotic phase.

Methods

A cross-sectional study was conducted of 57 ears with surgically confirmed stapes fixation and tomographic findings. Air conduction and bone conduction thresholds on audiometry, and air–bone gap, were analysed.

Results

There were no correlations between sites affected by otospongiosis and air conduction threshold, bone conduction threshold or air–bone gap in the analysed tomographic images, but the diameter of the otospongiotic focus was greater in the presence of extension of the otospongiotic foci to the cochlear endosteum.

Conclusion

There were no relevant associations between high-resolution computed tomography findings and pure-tone audiometric measurements. However, the diameter of the otospongiotic focus was greater in the presence of extension of the otospongiotic foci to the cochlear endosteum.

Information

Type
Main Article
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press on behalf of J.L.O. (1984) LIMITED

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