Patient: Hello doctor: My child is now 19 months old, he failed the hearing screening at the county hospital when he was born, and three months later he went to a new hospital for hearing screening and still failed. Now I found that the child was not sensitive to sound. So he went to the city hospital again for examination. The otoacoustic emission passed the test. However, the brain stem test failed. The doctor concluded that the 100KBL did not produce a valid waveform. The doctor ordered a CT scan, which showed no abnormalities. The doctor said that he would test the hearing nerve at the end of the week. What should I do in this case? I’m very anxious now. The child is very understanding and cute. Yin Shankai, Department of Otolaryngology, Shanghai Sixth People’s Hospital: How is the child responding to sounds now? How is the speech development? Patient: Hello, doctor, the child is very insensitive to sound. He can’t speak either. He can’t hear even if I call him loudly! Yin Shankai, Department of Otolaryngology, Shanghai Sixth People’s Hospital: Is there any history of maternal exposure to specific drugs or toxins during pregnancy? Is there any family history of hereditary disease (are there any relatives in the family with the same condition)? Is there any history of intrauterine distress and other hypoxia at birth? What was the condition of the child after delivery? Is there any history of jaundice 28 days after birth? Does the child have any other co-morbidities at present, especially autoimmune diseases? The test report you provided has been reviewed. If the test results are reliable, sensorineural deafness is considered and cochlear implantation is an option. If you need to confirm the diagnosis, you can go to the otolaryngology department of your local tertiary care hospital for further tests such as evoked otoacoustic emission and contralateral suppression test, ABR (40HZ) and MRI of the internal auditory tract. If you choose surgical treatment for your child, it is best that the appropriate ancillary tests are performed at the surgical hospital. Patient: Thank you, doctor. I would like to ask which manufacturer has a better quality cochlear implant that is less expensive. What is the cost of the examination? Yin Shankai, Department of Otolaryngology, Shanghai Sixth People’s Hospital: There are three types of cochlear implants from Australian, Austrian and American companies. The price ranges from 150,000 to 180,000. The cost of inpatient examination varies from hospital to hospital, but the cost of hospitalization in our hospital is about 10,000 yuan or more.