Comparison of Tonotopic and Default Frequency Fitting for Speech Understanding in Noise in New Cochlear Implantees: A Prospective, Randomized, Double-Blind, Cross-Over Study - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Ear and Hearing Année : 2023

Comparison of Tonotopic and Default Frequency Fitting for Speech Understanding in Noise in New Cochlear Implantees: A Prospective, Randomized, Double-Blind, Cross-Over Study

Résumé

While cochlear implants (CIs) have provided benefits for speech recognition in quiet subjects with severe-to-profound hearing loss, noise remains challenging. A body of evidence suggests that reducing frequency-to-place mismatch may positively affect perception. Thus, a fitting method based on tonotopic map improve perception results and noise. The aim our study was to assess the impact new CI users.A prospective, randomized, double-blind, two-period cross-over 26 users performed over 6-month period. New older than 18 years bilateral sensorineural loss or complete less 5 were selected University Hospital Centre Rennes France. An anatomical created using postoperative flat-panel computed tomography reconstruction software Greenwood function. Each participant randomized receive conventional followed by vice versa. setting maintained 6 weeks, at end which participants tasks. primary outcome measure Participants allocated sequences block randomization size two ratio 1:1 (CONSORT Guidelines). those assessing outcomes blinded intervention.Thirteen each sequence. Two recruited (one sequence) had be excluded due COVID-19 pandemic. Twenty-four analyzed. Speech significantly better all signal-to-noise (SNR) levels tested [SNR = +9 dB, p 0.002, mean effect (ME) 12.1%, 95% confidence interval (95% CI) 4.9 19.2, standardized (SES) 0.71
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Dates et versions

hal-04264616 , version 1 (30-10-2023)

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Gwenaelle Creff, Cassandre Lambert, Paul Coudert, Vincent Péan, Stéphane Laurent, et al.. Comparison of Tonotopic and Default Frequency Fitting for Speech Understanding in Noise in New Cochlear Implantees: A Prospective, Randomized, Double-Blind, Cross-Over Study. Ear and Hearing, 2023, ⟨10.1097/aud.0000000000001423⟩. ⟨hal-04264616⟩
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