Deafness, Hearing Loss, Sensorineural
Conditions
Keywords
cochlear implant, Evoked Potential P300
Brief summary
Bilateral severe to profound hearing loss is a socially disabling handicap. Cochlear implants can be used to improve hearing in cases where conventional hearing aids are not effective. There are few studies about the long latency Auditory Evoked Potential (P300), in individuals with hearing loss and Cochlear Implant (CI) users. The aim of this project is to study the behavior of P300 in users of unilateral CI.
Detailed description
Bilateral severe to profound hearing loss is a socially disabling handicap. Cochlear implants can be used to improve hearing in cases where conventional hearing aids are not effective. There are few studies about the long latency Auditory Evoked Potential (P300), in individuals with hearing loss and Cochlear Implant (CI) users. The aim of this project is to study the behavior of P300 in users of unilateral CI. Twenty patients with bilateral severe and/or profound post-lingual deafness, all submitted to CI surgery, will be evaluated. Patients will be evaluated through P300 testing on the day before CI surgery, on the day of device activation and 6 months after device use. It is hoped that this study can contribute to the understanding of the mechanisms of brain plasticity involved in the recovery of hearing function after CI surgery. There are few studies on the behavior of P300 in CI users and there are no studies showing how central stimulation occurs after device implantation, during the phases of pre CI, CI activation and 6 months after CI.
Interventions
DIAGNOSTIC_TESTP300 - Auditory long latency potential
Perform the P300 exams.
Sponsors
Fundação de Apoio ao Ensino, Pesquisa e Assistência do Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo
University of Sao Paulo
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE
Masking description
Not Apply
Intervention model description
Verify the alteration of the latency and amplitude of the P300 as markers of the cognitive response after Cochlear Implant Assist in prognosis after implantation cochlear implant.
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* Patients with post-lingual hearing loss undergoing cochlear implant surgery
Exclusion criteria
* Prelingual hearing loss
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Improvement of the P300 Responses after CI | 06 months after CI | Improving the cognitive process on CI receivers |
Outcome results
None listed