Main objective:
For a bimodal fitting (hearing aid (HA) + cochlear implant (CI)): Comparison of a tonotopy based fitting strategy (TFS4) to a default fitting strategy (FS4) for the speech recognition in noise.
Secondary objectives:
Comparison of TFS4 to FS4 for speech recognition in quiet. Comparison of TFS4 to FS4 for the auditory skills experienced by the subject.
Adult patient (>= 18 years old) speaking French
Patient who fulfils the criteria for cochlear implantation
retro-cochlear pathology: auditory neuropathy, vestibular schwannoma
patient with residual hearing < 70 dB hearing level (HL) at 500 Hz and 1000 Hz on the contralateral ear
Crossover
FS4 then TFS4 (cochlear implant)
DeviceCochlear implant with default fitting then with tonotopy-based fitting
TFS4 then FS4 (cochlear implant)
DeviceCochlear implant with tonotopy-based fitting then with default fitting
Speech recognition in noise
The speech recognition in noise is evaluated with the French Matrix test (Framatrix) \[S. Jansen et al. Comparison of three types of French speech-in-noise tests: a multi-center study. Int J Audiol, 51 (3) (2012), pp. 164-173\].
Speech recognition in noise
The speech recognition in noise is evaluated with the French Matrix test (Framatrix) \[S. Jansen et al. Comparison of three types of French speech-in-noise tests: a multi-center study. Int J Audiol, 51 (3) (2012), pp. 164-173\].
Speech recognition in quiet
Cochlear list of Lafon: list of 51 phonems (17 words). Speech recognition score on 50.
Speech recognition in quiet
Cochlear list of Lafon: list of 51 phonems (17 words). Speech recognition score on 50.
Auditory skills experienced by the patient
Auditory skills experienced by the patient are evaluated with the short form of the French version of the speech spatial qualities scale (SSQ) with of 15 questions describing various real-world auditory situations \[Moulin et al. Ear \& Hearing 2019;40;938-950\].
Auditory skills experienced by the patient
Auditory skills experienced by the patient are evaluated with the short form of the French version of the speech spatial qualities scale (SSQ) with of 15 questions describing various real-world auditory situations \[Moulin et al. Ear \& Hearing 2019;40;938-950\].
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