Optimization and Validation of Electric Acoustic Stimulation (EAS) Mapping as a Function of Residual Hearing After CI-Implantation

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-85
SponsorLuzerner Kantonsspital

About this trial

The aim of this clinical study is to investigate how the fitting of an EAS (electrical acoustic stimulation) based on electrocochleography (ECochG) thresholds compares to fitting based on pure tone audiogram thresholds in terms of speech intelligibility in quiet and noise. The personal feedback from the study participants regarding the question of better fitting and the resulting sound quality should also be included in the analysis.

Eligibility criteria

Qualifiers

Patients aged between 18-85 years.

Cochlear Implant (CI) candidates with measurable post-operative low-frequency residual hearing (125Hz <65dB, 250Hz <65dB, 500Hz <65dB).

Only patients with MED-EL EAS.

Written informed consent must be obtained prior to study start.

Disqualifiers

Patients with cognitive impairments who, as a result, lack the capacity to make decisions.

Uncooperative patients regarding pure tone audiometry thresholds measurements.

Morbus Menière or intracochlear/ vestibular schwannoma

Trial design

Treatments tested in this trial

  • The objective fitting method of the EAS based on the thresholds of electrocochleography is the intervention of our study.
  • The subjective adjustment of an EAS based on thresholds from the pure tone audiogram.

Treatment groups

12 Participants
are divided into 2 treatment groups

Locations

This trial has no locations

Sponsors and collaborators

Luzerner Kantonsspital

Lead sponsor

MED-EL Elektromedizinische Geräte GesmbH

Collaborator