Benefit of a Contralateral Routing of Signal Device for Unilateral Cochlear Implant Users.

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)

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 - Image Guided Therapy > ARTORG Center - Artificial Hearing Research

UniBE Contributor:

Weder, Stefan; Kompis, Martin; Caversaccio, Marco and 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:

30 May 2016 14:08

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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