Auditory Neuropathy and Cochlear Implants

NCT ID: NCT01023932

Last Updated: 2009-12-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Study Classification

OBSERVATIONAL

Study Start Date

2006-09-30

Study Completion Date

2009-09-30

Brief Summary

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The electrical stimulation generated by the Cochlear Implant (CI) may improve the neural synchrony and hence contribute to the development of auditory skills in patients with Auditory Neuropathy / Auditory Dys-synchrony (AN/AD). Goal: The goal of the research was to evaluate the auditory performance and the characteristics of the electrically evoked compound action potential (ECAP) in a group of 18 cochlear implants recipients with AN/AD.The auditory perception was evaluated by sound field thresholds and speech perception tests. To evaluate ECAP's characteristics, the threshold and amplitude of neural response together with the amplitude growth and recovery functions were evaluated at 80Hz stimulation rate.The CI was seen as an efficient resource to develop auditory skills in 94% of the AN/AD patients considered by the research. The auditory perception benefits as well as the possibility to measure the ECAP showed that the electrical stimulation could compensate the neural dys-synchrony caused by the AN/AD. However, a unique clinical procedure cannot be proposed at this point. Therefore, a careful and complete evaluation of each AN/AD patient before recommending the Cochlear Implant is advised

Detailed Description

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Conditions

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Cochlear Implants Auditory Neuropathy

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Auditory Neuropathy Patients

Cochlear Implants

Intervention Type DEVICE

Interventions

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Cochlear Implants

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* All children with AN/AD who had received the cochlear implant during the research´s period.
Minimum Eligible Age

2 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior.

OTHER_GOV

Sponsor Role collaborator

University of Sao Paulo

OTHER

Sponsor Role lead

Locations

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Bionic Ear Center

São Paulo, São Paulo, Brazil

Site Status

Countries

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Brazil

References

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de Carvalho ACM, Bevilacqua MC, Sameshima K, Filho OAC. Auditory neuropathy/Auditory dyssynchrony in children with Cochlear Implants. Braz J Otorhinolaryngol. 2011 Jul-Aug;77(4):481-487. doi: 10.1590/S1808-86942011000400012.

Reference Type DERIVED
PMID: 21860975 (View on PubMed)

Other Identifiers

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NADA2009

Identifier Type: -

Identifier Source: org_study_id