Abstract
Purpose
Cochlear synaptopathy or hidden hearing loss is difficult to assess due to the lack of sensitivity with standard audiological tests. Poor speech perception, especially in the presence of noise or tinnitus, is the most common complaint of these patients. The purpose of this systematic review is to identify articles in peer-reviewed journals that used behavioral measures in the effective assessment of cochlear synaptopathy or hidden hearing loss.
Methods
The manuscripts were searched in various international databases, and the manuscripts were screened based on titles, abstracts, and full-length content. A total of 14 human studies were selected after the appropriate exclusion of other articles.
Results
Results showed that high-frequency audiometry could be used for the early identification of cochlear synaptopathy. The tone in noise detection test can also be added in the test battery along with speech perception in noise. The amplitude modulation detection test, interaural phase difference, and differential sensitivity tests require more research before using them for the assessment of cochlear synaptopathy or hidden hearing loss.
Conclusions
Self-reports and questionnaires also help in determining the extent of noise exposure.
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Acknowledgements
The authors acknowledge with gratitude Prof. M Pushpavathi, Director, All India Institute of Speech and Hearing affiliated to University of Mysore, for permitting to conduct the study at the institute. The authors also like to acknowledge the participant for co-operation.
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PL was involved in study design, data collection, analysis of the results, interpreting and writing the manuscript; PP was involved in study design, data collection, analysis of the data, interpretation and writing the manuscript.
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Ethical approval was obtained from the All India Institute of Speech and Hearing (AIISH) Ethical Review board for carrying out the study.
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The manuscript adheres to the ethical standards according to the Declaration of Helsinki.
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Informed consent was obtained from the patient to participate in the study.
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In the present study, all the testing procedures were carried out on humans using non-invasive techniques, adhering to the guidelines of the Ethics Approval Committee of the institute. All the procedures were explained to the participants, and informed consent was taken from all the participants of the study.
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Lokwani, P., Prabhu, P. Efficacy of behavioral audiological tests in identifying cochlear synaptopathy: a systematic review. Eur Arch Otorhinolaryngol 279, 577–594 (2022). https://doi.org/10.1007/s00405-021-06927-x
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DOI: https://doi.org/10.1007/s00405-021-06927-x