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Effects of location, size and shape of tympanic membrane perforations on hearing: analysis of 400 cases

Published online by Cambridge University Press:  20 September 2021

M K Balcı ,
A İşlek ,
Y B Bakiş  and
H K Önal
M K Balcı*
Affiliation:
Department of Otorhinolaryngology, İzmir Katip Çelebi University Atatürk Training and Research Hospital, İzmir, Turkey
A İşlek
Affiliation:
Department of Otorhinolaryngology, Nusaybin State Hospital, Mardin, Turkey
Y B Bakiş
Affiliation:
Department of Otorhinolaryngology, İzmir Katip Çelebi University Atatürk Training and Research Hospital, İzmir, Turkey
H K Önal
Affiliation:
Department of Otorhinolaryngology, İzmir Katip Çelebi University Atatürk Training and Research Hospital, İzmir, Turkey
*
Author for correspondence: Dr M K Balcı, Department of Otorhinolaryngology, İzmir Katip Çelebi University Atatürk Training and Research Hospital, Basın Sitesi Mh. Karabağlar, İzmir35170, Turkey E-mail: m.koray.balci@gmail.com
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Abstract

Objective

This study aimed to evaluate the effect of size, location and shape of tympanic membrane perforations on hearing levels of a large study group treated in a tertiary referral centre.

Method

Medical data of 458 patients with tympanic membrane perforations were evaluated.

Results

A total of 336 patients had normal middle-ear findings during the surgical procedures. There was a significant difference in terms of mean pure tone average and air–bone gap values between posterior-inferior and anterior-inferior perforations (p = 0.005 and p = 0.044, respectively). The mean air–bone gap value of kidney-shaped perforations was significantly higher. Posterior-superior and posterior perforations were significant indicators for ossicular chain defects (p < 0.001; odds ratio, 14.2 and p = 0.004; odds ratio, 3.4, respectively).

Conclusion

Perforations located in the posterior-inferior quadrant caused the greatest hearing loss. The difference between posterior-inferior and anterior-superior or inferior perforations was statistically significant. Posterior perforations had a significant relationship with ossicular chain pathologies. Kidney-shaped perforations caused higher pure tone average and air–bone gap values than annular, elliptical or pinpoint perforations.

Keywords

Hearing LossTympanic MembraneAudiometry
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 135 , Issue 11 , November 2021 , pp. 993 - 999
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

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Footnotes

Dr M K Balcı takes responsibility for the integrity of the content of the paper

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