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eISSN: 1643-3750

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Repeatability of Transient-Evoked Otoacoustic Emissions in Young Adults

Krzysztof M. Kochanek, Lech K. Śliwa, Klaudia Puchacz, Adam Piłka

(Department of Experimental Audiology, Institute of Physiology and Pathology of Hearing, Warsaw, Poland)

Med Sci Monit 2015; 21:36-43

DOI: 10.12659/MSM.891365


Background: The aim of this study was to evaluate the repeatability and variability of TEOAE characteristics in hearing screening tests performed under practical conditions on normal subjects.

Material and Methods: A group of 11 young, normal-hearing subjects aged 19–24 years was tested. They were examined otologically and audiologically prior to the tests and no ear pathologies were found. Responses were acquired with a commercially available instrument (Integrity, Vivosonic Inc.) using a standardized OAE protocol. The TEOAE tests were repeated 3 times in each subject at random intervals within 24 h. The analyzed parameters of interest were: (i) whole wave reproducibility (WWR) and; (ii) signal-to-noise ratio (SNR).
Results: WWR and SNR did not differ significantly among the 3 measurement sessions. In most cases the differences in WWR among measurements were around 1–2% and for SNRs they were 1–4 dB SNRs and were highest in the 1–2 kHz range. TEOAE-based tests can be useful tools for hearing screening.
Conclusions: The tests can give reliable results provided that adequate procedures are used and low-noise conditions are ensured. The tests are best complemented with other examinations to widen the range of ear pathologies able to be detected.

This paper has been published under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) allowing to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially.
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