|
Cochlear implantation is a surgical procedure performed by otolaryngology surgeons.
Appropriately identified adults as well as profoundly
deaf children (aged 12 months or older) can be implanted.
Research demonstrates that the earlier a deaf child
is implanted, the better the long term result will be
with respect to speech and language development. Following
surgery, rehabilitation is necessary, as the child must
learn to associate the sound signals with normal sounds.
Regarding deaf adults, research suggests that adults
who receive cochlear implants are less lonely, have
less social anxiety, are more independent, have increased
social and interpersonal skills, and of course, they
hear better with the cochlear implant! The majority
of cochlear implant recipients wearing digital cochlear
implants are able to use the telephone.
Cochlear implants are utilized in the patient who cannot
benefit from hearing aids. The cochlear implant is a
device used to bypass the nonfunctional inner ear and
converts sound into electrical impulses that directly
stimulate the cochlear nerve. The implant consists of
an external portion comprised of a microphone, sound
processor, and external coil and an internal portion
that must be surgically implanted. The surgical procedure
involves the placement of an internal receiver beneath
the skin behind the ear, and a stimulating electrode
array is inserted into the cochlea. The electrical signals
are manipulated and controlled by the audiologist to
maximize speech perception. The brain interprets these
electrical impulses as sound. Again, not all patients
are surgical candidates, and not all cochlear implant
recipients receive the same benefit.
It is important to remember that the vast majority
of patients who receive cochlear implants are actually
"deaf" prior to implantation and they have
not been successful with traditional hearing aids. Your
audiologist is a very knowledgeable resource regarding
cochlear implants and will be happy to discuss them
with you. |