In recent years, the incidence of deafness has increased. According to professional statistics, there are about 26 million people with hearing and language impairment in China, including 800,000 deaf children under 7 years old, and the number of deaf children is increasing at the rate of 30,000 per year. For children with hearing impairment, genetic factors account for about 65%, and for hearing impairment after 4-5 years old, genetic factors can rise to 7 1%.
"20 16 White Paper on Children's Drug Safety Investigation Report" shows that about 30,000 children's deafness is related to drugs every year in China. Among children who are deaf due to genetic factors, it is a common situation that children will be deaf when they use a certain drug when they have a fever. In fact, the high dose of drugs is only a small part of deafness, and most of them are caused by gene mutation of drug-induced deafness. Such people often use aminoglycoside antibiotics without knowing it.
Mother suffers from rubella or other viral diseases during pregnancy, which may also lead to hearing loss of children; Premature delivery, ear malformation, jaundice after birth, viral or bacterial encephalitis, hypoxia, ototoxic drugs, low weight, etc. Cold, rhinitis, sinusitis and hypertrophy of glands may all cause otitis media. For those who have given birth to deaf children, or have a family history of deafness or sudden deafness, and both husband and wife are deaf, genetic diagnosis and genetic counseling can be carried out before giving birth. Deafness gene screening belongs to deafness gene counseling, which can determine the genetic mode, calculate the risk of recurrence, and accurately evaluate and explain the risk of illness, carrier and recurrence of patients and their family members. Through objective and accurate reproductive guidance and intervention measures, hereditary deafness can be fundamentally prevented and blocked, and birth defects of deafness can be prevented.
If the external auditory canal is blocked by amniotic fluid, fetal fat and cerumen, the foreign body should be removed. The diagnosis of secretory otitis media should be treated with drugs and puncture in time; Congenital malformation of external auditory canal or middle ear needs surgical treatment; Children diagnosed with permanent sensorineural hearing impairment should wear hearing AIDS. If there is no obvious effect after using hearing AIDS for 3-6 months, it can be evaluated and implemented before cochlear implantation.