Hearing
loss in childhood
Early detection of a hearing loss is important. The first
three years of a child’s life are critical for developing
communication and language skills. If a hearing loss is
undiagnosed it may lead to poor speech and learning difficulties.
It may also result in behavioural problems. The sooner a
hearing loss is detected the better it will be for a child’s
overall development.
Causes of hearing disorders
Hearing loss can be permanent or temporary. There are many
different causes. It may be pre-natal due to maternal illness
during pregnancy or hereditary factors. It may be peri-natal
due to a difficult delivery or post-natal due to childhood
illnesses. Usually pre and peri -natal hearing losses affect
the inner ear and are permanent.
The most common cause of hearing problems in children are
middle ear infections also known as “glue ear”-
a build up of sticky fluid behind the eardrum. This type
of hearing problem is reversible and even preventable.
Normal hearing development
Each child learns and develops at a different rate. The
following is a general guide to the behaviour that you may
expect at different stages of a child’s life.
Birth to 8 weeks
Baby is startled by a sudden loud noise 1-2 metres away.
6-12 months
Baby turns head toward familiar voices or sounds, babbles
and responds to quiet noises.
18 months- 2 years
Child uses a number of single words and understands simple
instructions (eg: ‘give me the book’).
2 ½ - 3 ½ years
Child should be speaking clearly using groups of words,
follows simple commands without visual clues and repeats
phrases.
In older children, hearing difficulties may sometimes be
confused with behavioural problems. Constant disobedience,
below average school performance and frequent colds are
also signs that there may be a hearing problem.
Hearing tests
There is a range of tests available
to assess hearing in children that should be performed by
an audiologist with paediatric experience.
At
Healthy Hearing & Balance Care we have the expertise
and are fully equipped to test children as young as 8 months.
Hearing tests (audiometry) accurately measure hearing
levels in a fun and playful manner.
Objective assessment of middle ear function – tympanogram,
and cochlear function – OAE, are performed using the
latest technology.
These tests are not uncomfortable or invasive and can usually
be performed in a half hour session.
Auditory processing tests
Children from 7 years of age who are experiencing learning
and behaviour difficulties may be tested to aid in identifying
problems such as APD (Auditory Processing Disorder), ADD
(Attention Deficit Disorder) and ADHD (Attention Deficit
and Hyperactive Disorder)
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©2005, Celene McNeill
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