Evaluation of hearing child
Until recently it was not possible to evaluate the child's hearing until the age of 6 months, and the use of hearing aids is only practiced by 18 months.Many children have a hearing loss is not detected until the age of two.Modern technology provides diagnostic pathology of hearing in newborn babies with the ability to use a hearing aid up to 6 months.It should be widespread adoption of screening, which will save the speech abilities of the child.
Reaction to sound
At the age of 6 months old baby with normal hearing reacts to a sudden loud sound or flashing eyes wide.At the reception, the doctor will ask parents whether they observe this reaction in a child, as well as the existence of hearing problems in the family.
development of hearing
kids older than three months, turning in the direction of the sound source.At the age of 6 months, they are already responding to the quieter sounds - it is precisely this reaction is checked by listening tests.At 9 months, th
Sensorineural hearing loss
Sensorineural hearing loss develops when the cochlea is damaged, the nerves supplying the inner ear, or the area of the brain responsible for hearing.There are several reasons:
- genetic - may be congenital deafness;
- pregnant infectious diseases - measles, toxoplasmosis or cytomegalovirus infection;
- obstructed labor with severe asphyxia (suffocation) child;
- neonatal jaundice - with excessively high levels of bilirubin;
- complication of bacterial meningitis.
conductive hearing loss
Conductive hearing loss occurs when the conduction disturbance sound to the cochlea in the outer or middle ear.The ear canal can be formed cerumen impaction, causing pain in the ear and deafness.Normally, earwax evacuated from the ear yourself.In older infants and children up to three years are sometimes develops after a cold glue ear, at which accumulates in the middle ear, viscous liquid, causing hearing loss.Infection or injury to the ear can lead to rupture (perforation) of the tympanic membrane between the middle and outer ear, which is accompanied by a sharp loss of hearing.All children are hearing screening tests in the first year of life.Traditionally, hearing test conducted in a child aged seven to nine months, often in conjunction with the general assessment of the development.
During this Gest baby is sitting on her mother's lap, and the nurse is in front of the child and diverts his toy.Then the toy is removed, and the doctor, who is on the side of the child outside its visibility publishes a loud sound.The child must turned in the direction of the sound source.The test is performed on both sides with different intensity sound.If a child has a cold or capricious and not responding properly, the test is repeated a few weeks later.If in doubt as a result of the test the child is sent for consultation to the audiologist.At otoscopy can be detected pathology of the middle ear, which should be differentiated from nerve damage with a simple device - the impedance audiometer.
In developed countries, a test to determine the source of the sound is now replaced by neonatal screening test, which allows to evaluate the function of the inner ear.This painless procedure takes only a few minutes and can be performed in a newborn baby before discharge from the hospital or within the first three months of life.The device, which emits clicking sounds, placed near the ear of a sleeping child.Normally cochlea generates an echo that capture device.This test accurately predict the normal development of the hearing.However, possible errors due to the presence of remnants of membranes and syrovidnoy grease in the ear of the newborn.In this case, the test was repeated a few weeks.If the hearing body of the child is still in doubt, resort to more sophisticated tests to determine the extent of hearing loss.
have children past the neonatal screening test does not require a hearing test in 8 months.However, hearing loss can develop later, so the concerns of parents, or the presence of risk factors such as deafness in the family or a history of meningitis, hearing acuity is tested, and in older children.After diagnosing severe pathology of hearing the child he picked up a hearing aid, working on the principle of the amplifier.Infants usually tolerate hearing aids, problems tend to occur in older children, who may refuse to wear them.In such cases, the part of parents takes a lot of perseverance and patience.
children with hearing impairment are included in a multidisciplinary program of speech and language therapy.Some children with profound bilateral hearing loss hearing aids improve the hearing is not sufficient for normal development of speech.In such cases, as soon as possible to teach parents and child to communicate using sign language.
Some children shows an installation cochlear implant.This complex operation is performed only in specialized centers.The technology provides for the introduction of the electrode, which bypasses the non-functioning of the inner ear.Although cochlear implants do not restore hearing, the patient can learn to interpret the sounds that will help him to communicate with people.Now we know what should be a natural development of a child with hearing loss.