Hearing loss is very common in children with Down Syndrome and can lead to severe language delays. We’ll discuss why exactly children with Down Syndrome are at a higher risk for hearing loss and will have a look at the factors that affect their hearing.
Down Syndrome is a genetic condition that occurs at conception. People with Down Syndrome have an extra chromosome 21, which is why it is also known as Trisomy 21. It is often associated with intellectual disability, characteristic physical features and the increased risk of some health conditions, including hearing loss.
The anatomical ear structure of children with Down Syndrome has characteristics that may predispose them to hearing loss. Most of the hearing loss seen in Down Syndrome is conductive hearing loss. This type of hearing loss is common in children with Down Syndrome because they often have narrow ear canals and fluid in the middle ear.
In children with Down Syndrome, sensorineural hearing loss is less common than conductive hearing loss, but it does occur in higher numbers than other children due to differences in the anatomy of the ear.
This is the most common cause of hearing loss in Down Syndrome. Conductive hearing loss is often a temporary hearing loss where sounds cannot pass freely into the inner ear. In children, this often happens because they have a build-up of fluid in the space behind the eardrum.
If your child has ongoing fluid in the middle ear, it may be necessary for ear tubes to be surgically implanted by an Ear Nose and Throat surgeon. Sometimes children may experience conductive hearing loss due to a buildup of earwax which commonly occurs due to the very narrow ear canals seen in Down Syndrome.
Sensorineural hearing loss is usually a permanent hearing loss that happens where there is damage in the inner ear. Sometimes there are changes to the hearing organ and it does not send the sound messages to the brain. Other times, the hearing nerve which carries the messages to the brain, is not working.
Some children with Down Syndrome are born with this type of hearing loss and some may develop it as they get older. If your child has sensorineural hearing loss, hearing aids can help.
Is a combination of both conductive and sensorineural hearing loss. In children with sensorineural hearing loss, an additional conductive hearing loss will compound their hearing difficulties.
The primary goal of pediatric audiology is to ensure that children have adequate speech and language development. Close monitoring and management are required for children with Down Syndrome due to their high risk of hearing loss.
Every newborn baby, including those with Down Syndrome, should have a newborn hearing screen. This will be done before your child is discharged from hospital. Sometimes babies will be referred for a more thorough diagnostic hearing test with an audiologist for further investigations. This is a painless test that is normally performed while your baby is sleeping in your arms.
All infants with Down Syndrome will have their hearing tested again at around 10 months of age with a hearing test called. During this test, your baby will be awake and will show what sounds she can hear by turning towards a puppet when sounds are played. If there are no concerns, your child’s hearing should be tested every 6 months until the normal hearing is confirmed in both ears.
If there are concerns, your child will be referred to an ear, nose, and throat specialist.
Once a normal hearing is confirmed in both ears, your child should continue to receive an audiogram every year. More frequent hearing tests will be required if your baby has an abnormal result or there are hearing concerns.
Children with Down Syndrome have a range of learning problems that make learning to speak in sentences very hard. These delays in developing may be made worse by hearing loss. A child with a temporary conductive hearing loss may be able to hear well some days and not other days. It will depend on whether or not there is fluid in the middle ear.
This is something we have all experienced from time to time when we have had a bad head cold.
If this fluid persists, it can become a constant mild hearing loss.
This will affect the child’s ability to hear the difference between some consonant sounds. This means that if I said, “bat” the child might think I said “pat.” The child will have to work out what I said based on the context of our conversation and may miss information to help with understanding. Single, short instructions will be easier for the child than longer sentences.
Assessment by an audiologist is important to determine if there would be a benefit to using hearing aids, as well as the need for services of a speech therapist. A lot of children with Down Syndrome benefit from using sign language, even if they do not have a hearing loss. It is vital to understand the impact of the child’s hearing loss in listening in the classroom. Mild hearing losses have been shown to negatively affect children’s progress in school.
Many people with Down Syndrome will be affected by hearing loss at some stage in their lives. The hearing loss may be a mild temporary hearing loss or a permanent problem. All children with Down Syndrome must be seen regularly by the family doctor, paediatrician and audiologist. These medical appointments and hearing reviews are vital to support a child’s speech, language and cognitive development.
Are you concerned about your child’s hearing? If you believe that your child may be experiencing hearing loss, book a hearing test with Attune Hearing, Australia’s leading hearing healthcare provider. Find your local Attune clinic and make an appointment today on 1300 736 702!