Table of Contents
Advances in Otolaryngology
Volume 2015 (2015), Article ID 941230, 4 pages
Clinical Study

The Benefits of Using RONDO and an In-the-Ear Hearing Aid in Patients Using a Combined Electric-Acoustic System

1School of Surgery, The University of Western Australia, Crawley, WA, Australia
2Fiona Stanley Hospital, 102-118 Murdoch Drive, Murdoch, WA 6150, Australia
3Medical Audiology Services, West Perth, WA, Australia

Received 7 May 2015; Revised 29 June 2015; Accepted 22 July 2015

Academic Editor: Tino Just

Copyright © 2015 Dayse Távora-Vieira and Stuart Miller. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


People with residual hearing in the low frequencies and profound hearing loss in the high frequencies often do not benefit from acoustic amplification. Focus on this group of patients led to the development of the combined electric-acoustic stimulation (EAS) systems which can provide users with greater speech perception than can cochlear implant (CI) alone or acoustic hearing alone. EAS users wear a combined speech processor that incorporates a behind-the-ear audio processor that sits with an ear hook on the user’s pinna and a hearing aid, which sits in the ear canal. However, with the introduction of single-unit processors, which combine the audio processor, coil, control unit, and battery pack into a single device that sits on the implant site, therefore off the ear, simultaneous electric (CI) and acoustic (hearing aid) stimulation is not currently possible with a combined processor. To achieve EAS with a single-unit processor, a CI user must also wear a hearing aid. This study seeks to determine if experienced users of combined EAS speech processors could also benefit from using a combination of a single-unit speech processor that sits off the ear and an in-the-ear hearing aid.