Otoacoustic emissions (OAEs)
are sounds of cochlear origin,
which can be recorded by
a microphone fitted into the
ear canal. They are caused by
the motion of the cochlea's
sensory hair cells, as they
energetically respond to
OAEs provide a simple, efficient
and non-invasive objective indicator
of healthy cochlear function, and
OAE screening is widely used in
universal new-born hearing
Most newborns are screened for hearing loss,
and many hospitals use a 2-stage protocol in
which all infants are screened first with otoacoustic emissions
In this protocol, no additional testing is
done for those passing the OAE screening,
but infants failing the OAE are also screened
with automated auditory brainstem response (A-ABR)
Screening otoacoustic emission
As part of the audiological diagnostic
test battery, OAEs can contribute to
differential audiological diagnosis,
they can be used to monitor the
effects of treatment, and they can be
helpful in the selection of hearing
aids and of surgical options.
Screening Otoacoustic emission
Otoacoustic emission (OAE) tests are
currently used to screen newborns for
congenital hearing loss in many Universal Newborn
Hearing Screening programs.
However, there are concerns about
high referral and false-positive rates.
Various protocols have been used to address this problem.
How do we do the test:
The child is not required to sleep
during this test. However, for this
test, your child, and everyone in the
room, must be able to sit still and be very quiet.
Soft foam or rubber tips are placed
in your child’s ear. Your child will hear
soft sounds through the soft foam or
rubber tips. A computer will record
quiet echoes from the ear.
How long is the test??
The screening Otoacoustic emission
test should only take a few minutes.