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Cochlear implantation in recipients with single-sided deafness: Audiological performance
Sebastian Hoth1, Maria Rösli-Khabas1, Ioana Herisanu1
1a Universitäts-HNO-Klinik , Im Neuenheimer Feld 400, D-69120 Heidelberg , Germany.
Cochlear Implants International
|May 5, 2016
Summary
Cochlear implants significantly enhance directional hearing and speech perception for individuals with single-sided deafness (SSD). This study demonstrates considerable audiological improvements, offering better sound localization and clarity in noisy environments.
Area of Science:
- Audiology
- Neuroscience
- Otolaryngology
Background:
- Single-sided deafness (SSD) presents challenges in sound localization and speech comprehension.
- Cochlear implants (CI) are a potential auditory rehabilitation option for SSD patients.
Purpose of the Study:
- To evaluate the auditory benefits of cochlear implantation in patients diagnosed with single-sided deafness.
- To assess improvements in directional hearing and speech perception with CI use.
Main Methods:
- Twenty SSD patients with varying degrees of hearing loss received cochlear implants.
- Participants underwent testing for directional hearing, speech perception in noise, and binaural loudness/pitch matching.
- A control group of 26 normal-hearing individuals provided normative data.
Main Results:
- Cochlear implantation significantly improved directional hearing accuracy and reduced localization error.
- Speech perception in noise showed substantial improvement, with a median shift in signal-to-noise ratio.
- Binaural loudness balancing indicated successful sound level matching, though pitch perception showed differences compared to controls.
Conclusions:
- Cochlear implantation offers significant audiological benefits for individuals with single-sided deafness.
- Improvements include enhanced directional hearing, binaural signal equivalence, and speech intelligibility.
- CI is a viable option for improving auditory function in SSD patients.
