deaf
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. The group under 7 years old was 12-83 months, and the group over 7 years old was 7 years old or more with bilateral severe and extremely severe sensorineural hearing loss; 2. Severe deafness shall not exceed 15 years; 3. The effect of wearing hearing aids is limited or invalid; 4. Audiology evaluation and imaging evaluation meet the requirements; 5. No surgical contraindication or other serious congenital malformation; 6. It is suitable for cochlear implantation according to the doctor's diagnosis; 7. There are conditions for hearing and language rehabilitation education; 8. Smooth communication in Putonghua (the group over 7 years old); 9. Agree to participate in the study and sign the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Allergy to implant materials; 2. Serious inner ear malformation (except MONDINI malformation and large vestibular aqueduct syndrome (LVAS)); 3. Deafness is caused by non cochlear diseases (such as retrocochlear diseases and auditory neuropathy); 4. The middle ear has infection or tympanic membrane perforation has not healed; 5. Have mental retardation; 6. Suffering from mental illness; 7. The general condition of the body is poor and the patient cannot accept surgery; 8. Those with abnormal brain structure (such as abnormal white matter development, demyelinating disease, etc.); 9. Uncontrolled epilepsy; 10. Patients who do not understand the benefits and risks of cochlear implants and whose expectations are unreasonable; 11. Those who are not suitable for enrollment after evaluation by the researcher; 12. Unable to cooperate with all tests.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Aided hearing thresholds;sentence speech recognition score;Meaningful Auditory Integration Scale (IT-MAIS/MAIS); | — |
Secondary
| Measure | Time frame |
|---|---|
| monosyllabic word recognition score;sentence speech recognition score in noise; | — |
Countries
China
Contacts
Chinese PLA General Hospital