Weder, Stefan; Kompis, Martin; Caversaccio, Marco; Stieger, Christof (2014). Benefit of a Contralateral Routing of Signal Device for Unilateral Cochlear Implant Users. Audiology & neuro-otology, 20(2), pp. 73-80. Karger 10.1159/000363212
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Objective: To investigate objective and subjective effects of an adjunctive contralateral routing of signal (CROS) device at the untreated ear in patients with a unilateral cochlear implant (CI). Design: Prospective study of 10 adult experienced unilateral CI users with bilateral severe-to-profound hearing loss. Speech in noise reception (SNR) and sound localization were measured with and without the additional CROS device. SNR was measured by applying speech signals at the untreated/CROS side while noise signals came from the front (S90N0). For S0N90, signal sources were switched. Sound localization was measured in a 12-loudspeaker full circle setup. To evaluate the subjective benefit, patients tried the device for 2 weeks at home, then filled out the abbreviated Speech, Spatial and Qualities of Hearing Scale as well as the Bern benefit in single-sided deafness questionnaires. Results: In the setting S90N0, all patients showed a highly significant SNR improvement when wearing the additional CROS device (mean 6.4 dB, p < 0.001). In the unfavorable setting S0N90, only a minor deterioration of speech understanding was noted (mean -0.66 dB, p = 0.54). Sound localization did not improve substantially with CROS. In the two questionnaires, 12 of 14 items showed an improvement in mean values, but none of them was statistically significant. Conclusion: Patients with unilateral CI benefit from a contralateral CROS device, particularly in a noisy environment, when speech comes from the CROS ear side. © 2014 S. Karger AG, Basel.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ear, Nose and Throat Disorders (ENT) 10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Hearing Research Laboratory |
UniBE Contributor: |
Weder, Stefan Andreas, Kompis, Martin, Caversaccio, Marco, Stieger, Christof |
Subjects: |
600 Technology > 610 Medicine & health |
ISSN: |
1420-3030 |
Publisher: |
Karger |
Language: |
English |
Submitter: |
Stefan Weder |
Date Deposited: |
13 Mar 2015 16:28 |
Last Modified: |
02 Mar 2023 23:26 |
Publisher DOI: |
10.1159/000363212 |
PubMed ID: |
25501444 |
BORIS DOI: |
10.7892/boris.65180 |
URI: |
https://boris.unibe.ch/id/eprint/65180 |
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