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Cochlear Implants
Generally speaking, cochlear implants are for patients with
severe-to-profound, sensorineural hearing loss. There are
approximately 500,000 patients in the USA with severe-to-profound
hearing loss. Cochlear implants are only recommended after
the patient has tried the most powerful and most appropriately
fit hearing aids, and has not
shown sufficient benefit from hearing
aids. Cochlear implants are devices that are "permanently"
surgically implanted into the inner ear.
Cochlear implantation is a surgical procedure performed by
otolaryngology surgeons. Cochlear implants have been FDA approved
for almost two decades and the advances and improvements in
the technology have been amazing. The Food and Drug Association
(FDA) and the American Medical Association (AMA) recognize
cochlear implants as safe and effective treatment for severe-to-profound
sensorineural hearing loss. Most insurance programs pay (at
least partly) for cochlear implantation. Your
audiologist, your otolaryngology surgeon and their appropriate
office staff are experienced at managing insurance issues.
Appropriately identified adults as well as profoundly deaf
children (starting at age 12 months) 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!
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 stimulating
electrode array, which is inserted into the cochlea or inner
ear. 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 the
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 in regards
to cochlear implants and will be happy to discuss them with
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