Cochlear Implants : Influence of Microphone Aging and Dirtying

Not Applicable

Completed

• Conditions: Hard of Hearing
• Interventions: Other: Listening to 48 Fournier's lists of words; Other: Listening to 12 Fournier's lists of words

• Registration Number: NCT02369718
• Lead Sponsor: Hospices Civils de Lyon

Brief Summary

Cochlear implant microphones are subject to aging and dirtying. The evolution may affect their efficiency. Several signal coding strategies are used in cochlear implants and their behaviour may be more or less affected by the aging process. In this work the investigators wish to assess this phenomenon.

Detailed Description

Not available

Basic Information
|
Recruitment & Eligibility
|
Study & Design
|
Trial Locations

Study Timeline

• Study Start: 2014-11
• Study First Submitted: 2015-01-22
• Study First Submitted QC: 2015-02-17
• Study First Posted: 2015-02-24
• Primary Completion: 2016-04
• Study Completion: 2016-04
• Status Verified: 2016-08
• Last Update Submitted: 2017-02-14
• Last Update Posted: 2017-02-15

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 81

Inclusion Criteria

• French speaking persons (French native speakers; studies made in French)
• Ear, Nose and Throat (ENT) tests and check up for normal hearing listeners were normal (Hearing loss below 20 dBs for all frequencies situated in the 250-8000 Hz range)
• Not mentally retarded

Read More

Exclusion Criteria

• Persons with tinnitus or headache
• Anxious people (taking psychiatric drugs)
• Mental alteration or mental retard
• Deafened persons or taking an ENT treatment (normal hearing listeners)

Read More

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Normal hearing subjects	Listening to 48 Fournier's lists of words	Listening to 48 Fournier's lists of words
Implanted subjects	Listening to 12 Fournier's lists of words	Listening to 12 Fournier's lists of words

Primary Outcome Measures

Name	Time	Method
Percentage of correct syllable recognition	At day 1	French "spondee lists"

Trial Locations

Locations (1)

Pavillon ORL (U) - Hôpital Edouard Herriot; 🇫🇷 LYON cedex 03, France