Auditory Performances With Different Stimulation Depths in Cochlear Implanted Subjects Using a Fine Structure Strategy

Condition(s) studied

Investigational drug(s) / intervention(s)

FineHearing Strategy with 10 more apical electrodes or with 10 more basal electrodes activated: Cochlear implant with FineHearing Strategy with 10 more apical electrodes activated or with 10 more basal electrodes activated

Study summary

Main objective:

Investigate on new cochlear implanted patients whether the FineHearing strategy of the MED-EL cochlear implant gives better results on musical perception if the depth of stimulation (stimulation or not of the apical areas) is greater.

Secondary objectives:

Evaluate the effect of stimulation depth on vocal audiometric results, results of differential frequency threshold test and on qualitative sound perception.

Eligibility

Primary outcome measure(s)

• Qualitative measure of music with direct audio link — at 1 month post-activation
  The Gabrielsson scale (1988) is used to evaluate perceived sound quality as a multidimensional phenomenon, that is composed of a number of separate perceptual dimensions. Eight perceptual dimensions are evaluated: clarity, fullness, brightness vs dullness, hardness/sharpness vs softness, spaciousness, nearness, extraneous sounds, loudness. Visual analog scales (VAS) are used for each dimension and the patient has to score the dimension on a 10 cm VAS (between 0 to 10). The test is performed with a direct audio link to the CI.
• Qualitative measure of music with direct audio link — at 2 months post-activation
  The Gabrielsson scale (1988) is used to evaluate perceived sound quality as a multidimensional phenomenon, that is composed of a number of separate perceptual dimensions. Eight perceptual dimensions are evaluated: clarity, fullness, brightness vs dullness, hardness/sharpness vs softness, spaciousness, nearness, extraneous sounds, loudness. Visual analog scales (VAS) are used for each dimension and the patient has to score the dimension on a 10 cm VAS (between 0 to 10). The test is performed with a direct audio link to the CI.

Trial sites (1)

More MED-EL Elektromedizinische Geräte GmbH trials in France

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