Rehabilitation of Sensorineural Hearing Loss: Hearing Aid

Jae Ho Chung

doi:10.7599/hmr.2015.35.2.97

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Chung: Rehabilitation of Sensorineural Hearing Loss: Hearing Aid

Review Article

Hanyang Medical Reviews 2015; 35(2): 97-102.

Published online: 21 May 2015

DOI: https://doi.org/10.7599/hmr.2015.35.2.97

Rehabilitation of Sensorineural Hearing Loss: Hearing Aid

Jae Ho Chung

Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University Guri Hospital, Guri, Korea.

Correspondence to: Jae Ho Chung. Department of Otorhinolaryngology-Head and Neck Surgery, Hanyang University Guri Hospital, 153 Gyeongchun-ro, Guri 471-701, Korea. Tel: +82-31-560-2369, Fax: +82-31-566-4884, Jaeho.chung.md@gmail.com

Received 19 March 2015 Revised 25 March 2015 Accepted 30 March 2015

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Social concerns about sensorineural hearing loss have been increasing with the advent of an aging society. As most hearing loss is incurable and permanent, audiologic rehabilitation is the only option for restoring hearing. Sensorineural hearing loss includes both sensory loss of the cochlea and functional loss of the 8th cranial nerve. Because sensorineural hearing loss patients often have difficulty in understanding and locating specific sounds amidst the other ambient noise, functional amplification with hearing aids in sensorineural hearing loss is challenging work. By applying digital signal processing techniques to hearing aids, hearing rehabilitation has undergone remarkable development in recent years. Herein, the basic concepts underlying digital signal processing are reviewed briefly, followed by a short historical background of hearing aid development. The principles of hearing aid selection, counselling, frequent problems encountered in hearing aid fitting and validation are also discussed.

Keywords: Hearing Aids, Hearing Loss, Rehabilitation

Figures and Tables

Fig. 1

Diagram of digital hearing aid.

ADC, analog digital converter; DSP, digital signal processor; DAC, digital analog converter.

Fig. 2

Classification of hearing aid type (courtesy of Oticon, Inc., Somerset, NJ).

CIC, complete in the canal; ITC, in the canal; ITE, in the ear; BTE, behind the ear; RIC, receiver in the canal.

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ORCID iDs: Jae Ho Chung
https://orcid.org/http://orcid.org/0000-0001-6884-7927
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