Sensorineural Hearing Loss
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) Patients who have sequential bilateral cochlear implantation; 2) The cochlear structures are normal; 3) Patients who were diagnosed as bilateral severe to profound SNHL before two years old; 4) Both parents are normal hearing listeners; 5) No serious cognitive or behavioral defects.
Exclusion criteria
Exclusion criteria: 1) Patients who have cochlear malformation (excepting large vestibular aqueduct malformation); 2) Patients who have cochlear nerve dysplasia; 3) Patients who have auditory neuropathy; 4) Patients who have cochlear ossification; 5) Patients who do not wear their second cochlear implant for a long time; 6) Patients who were diagnosed as prelingual deafness.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Speech recognition rate;electrical evoked compound action potential;cotical auditory evoked potential; | — |
Countries
China
Contacts
Shandong Second Provincial General Hospital, Shandong Provincial ENT hospital