CC BY-NC-ND 4.0 · Laryngorhinootologie 2019; 98(S 02): S137
DOI: 10.1055/s-0039-1686417
Abstracts
Otology

The influence of single-sided deafness on the auditory capacity of the better-hearing ear

MC Ketterer
1   Universitätsklinikum Freiburg, Freiburg
,
I Speck
1   Universitätsklinikum Freiburg, Freiburg
,
T Wesarg
1   Universitätsklinikum Freiburg, Freiburg
,
A Aschendorff
1   Universitätsklinikum Freiburg, Freiburg
,
S Arndt
1   Universitätsklinikum Freiburg, Freiburg
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    Introduction:

    The aim of this study was to examine for the first time the influence of single-sided deafness (SSD) on the auditory capacity of the better-hearing ear. Furthermore, we evaluated the influence of cochlear implantation (CI) on the contralateral ear, etiology and time of deafness regarding the auditory capacity of the better-hearing ear.

    Methods:

    264 SSD patients underwent CI-preinvestigation between 2009 and 2017. Regarding their pure tone average (PTA4) medians, the better-hearing ear was ≤30 dB at first clinical presentation, the poorer ear at ≥60 dB. As normal hearing (NH) reference group, we included the PTA4 determined by the International Organization of Standardization. 113 SSD patients underwent CI and 151 remained without CI. Patients were observed over a period of up to 9 years.

    Results:

    SSD patients showed a significantly worse auditory capacity on the better-hearing ear compared to the NH-data. SSD-CI patients had significantly better PTA4-medians on the contralateral ear after CI, compared to SSD patients without CI. The mean time of deafness was 102 months and significantly influenced the hearing capacity of the better-hearing ear. Congenital deafness resulted in poorer, acute hearing loss and otosclerosis in significantly better PTA4 medians compared to SSD patients with other etiology.

    Conclusion:

    SSD patients exhibit a significantly worse auditory capacity of the better-hearing ear, compared to the NH-group. SSD-CI patients exhibit a significantly better hearing ability of the better-hearing ear, compared to SSD patients without CI. The etiology and the time of deafness have significant influence on the auditory capacity of the better- hearing ear. The longer the time of deafness, the worse the auditory capacity of the better-hearing ear.


    #
    Dr. med. Manuel Christoph Ketterer
    Universitätsklinikum Freiburg,
    Killianstrasse 5, 79106
    Freiburg

    Publication History

    Publication Date:
    23 April 2019 (online)

    © 2019. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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