Hearing, Hearing Loss and Hearing Aids: Issues and Answers
Dr. Douglas L. Beck , Audiologist, Editor-In-Chief, Healthy
Hearing Website Hearing loss occurs to most people
as they age. Hearing loss can be due to the aging process,
exposure to loud noise, certain medications, infections,
head or ear trauma, congenital (birth or prenatal) or hereditary
factors, diseases, as well as a number of other causes.
In the year 2001, there are some 28 million people in the
USA with hearing loss. Hearing loss is the single most common
birth "defect" in America. Hearing loss in adults,
particularly in seniors, is common.
HOW DO I KNOW IF I HAVE HEARING LOSS?
You may have hearing loss if?.
You hear people speaking but you have to strain to understand
their words.
You frequently ask people to repeat what they said.
You don?t laugh at jokes because you miss too much of the
story or the punch line.
You frequently complain that people mumble.
You need to ask others about the details of a meeting you
just attended.
You play the TV or radio louder than your friends, spouse
and relatives.
You cannot hear the doorbell or the telephone.
You find that looking at people when they speak to you
makes it easier to understand.
If you have any of these symptoms, you should see an audiologist
to get an "audiometric evaluation." An audiometric
evaluation (AE) is the term used to describe a diagnostic
hearing evaluation, performed by a licensed audiologist. An AE
is not just pressing the button when you hear a "beep."
Rather, an audiometric evaluation allows the audiologist
to determine the type and degree of your hearing loss, and
it tells the audiologist how well or how poorly you understand
speech. After all, speech is the single most important sound,
and the ability to understand speech is extremely important.
The AE also includes a thorough case history (interview)
as well as visual inspection of the ear canals and eardrum.
The results of the AE are useful to the physician should
the audiologist conclude that your hearing problem may be
treated with medical or surgical alternatives.
Written hearing evaluations, "dial a hearing evaluation"
and other online hearing evaluations are not particularly accurate
and are certainly not diagnostic tests, but may be utilized
as screening tools. These screenings are usually free and
can be scored within a few seconds. Written hearing screenings
may point the patient (or consumer) in a particular direction
and may help validate that a hearing problem may indeed
exist.
Therefore, we have designed a written hearing screening
to provide you with some general guidelines about your hearing
ability. It is free and it may offer you insight regarding
the likelihood that a hearing loss is present. If you would
like to take the written hearing screening, Click here.
AUDIOLOGIST:
An audiologist is a person who has a masters or doctoral
degree in audiology. Audiology is the science of hearing.
In addition, the audiologist must be licensed or registered
by their state (in 47 states) to practice audiology.
In the field of audiology, the master?s degree has been
the accepted "clinical" degree for almost 50 years.
However, the profession is undergoing a transition to a
doctorate level degree as the entry-level requirement to
practice audiology. In a few years, there will be very few
colleges and universities offering a master?s program in
audiology. The Au.D. (Doctor of Audiology) is the clinical
doctorate degree and is issued exclusively by regionally
accredited universities and colleges. There are other doctoral
degrees that have been earned and utilized by audiologists
to date, such as the Ph.D. (still highly sought today by
researchers and academicians), the Sc.D. and the Ed.D.
Audiologists work in a variety of settings including hospitals,
schools, clinics, universities, rehabilitation facilities,
cochlear implant centers, speech and hearing centers, private
audiology practices, hearing aid dispensing offices, hearing
aid manufacturing facilities, medical centers, as well as
otolaryngology (ENT physician) offices. Although the vast
majority of hearing problems do not require medical or surgical
intervention, audiologists are clinically and academically
trained to determine those that do need medical referral.
As a licensed healthcare provider, the audiologist appropriately
refers patients to physicians when the history, the physical
presentation, or the results of the audiometric evaluation
(AE) indicate the possibility of a medical or surgical problem.
Many audiologists also dispense (sell and service) hearing
aids and related assistive listening devices for the telephone,
TV and special listeningsituations.
PHYSICIANS:
?
Otolaryngologists (also called ear-nose-and-throat, or ENT,
doctors) are physicians who have advanced training in disorders
of the ear, nose, throat and head and neck. Otologists or
neurotologists are physicians who in addition to their ENT
requirements continue their specialized training for an
additional year or more in the diagnosis and treatment of
disorders of the ear. Otolaryngologists, neurotologists
and otologists are the physicians who typically treat disorders
of the ear (or hearing mechanisms) requiring medical or
surgical solutions.
HEARING AID SPECIALISTS:
The hearing aid specialist has training in the assessment
of patients who specifically seek rehabilitation for hearing
loss. The hearing aid specialist is licensed or registered
to perform basic hearing evaluations and can sell and service
hearing aids and related products.
DEGREE of HEARING LOSS:
Results of the audiometric evaluation are plotted on a
chart called an audiogram. Loudness is plotted from top
to bottom. Frequency, from low to high, is plotted from
left to right. Hearing loss (HL) is measured in decibels
(dB) and is described in general categories. Hearing loss
is not measured in percentages. The general hearing loss
categories used by most hearing professionals are as follows:
_____Normal hearing (0 to 25 dB HL)
_____Mild hearing loss (26 to 40 dB HL)
_____Moderate hearing loss (41 to 70 dB HL)
_____Severe hearing loss (71 to 90 dB HL)
_____Profound hearing loss (greater than 91 dB HL)
TYPES OF HEARING LOSS:
The external and the middle ear conduct and transform sound;
the inner ear receives it. When there is a problem in the
external or middle ear, a conductive hearing impairment
occurs. When the problem is in the inner ear, a sensorineural
or hair cell loss is the result. Difficulty in both the
middle and inner ear results in a mixed hearing impairment
(i.e. conductive and a sensorineural impairment). Central
hearing loss has more to do with the brain than the ear,
and will be discussed only briefly.
______Conductive hearing loss occurs when sound is not
conducted efficiently through the ear canal, eardrum, or
tiny bones of the middle ear, resulting in a reduction of
the loudness of sound that is heard. Conductive losses may
result from earwax blocking the ear canal, fluid in the
middle ear, middle ear infection, obstructions in the ear
canal, perforations (hole) in the eardrum membrane, or disease
of any of the three middle ear bones.
A person with a conductive hearing loss may notice that
their ears may seem to be full or plugged. This person may
speak softly because they hear their own voice quite loudly.
Crunchy foods, such as celery or carrots, sound very loud
and this person may have to stop chewing to hear what is
being said. All conductive hearing losses should be evaluated
by an audiologist and a physician to explore medical and
surgical options.
______Sensorineural hearing loss is the most common type
of hearing loss. More than 90 percent of all hearing aid
wearers have sensorineural hearing loss. The most common
causes of sensorineural hearing loss are age related changes
and noise exposure. A sensorineural hearing loss may also
result from disturbance of inner ear circulation, increased
inner fluid pressure or from disturbances of nerve transmission.
Sensorineural hearing loss is also called "cochlear
loss," an "inner ear loss" and is also commonly
called "nerve loss." Years ago, many professionals
said there was nothing that could be done for sensorineural
hearing loss ? that is totally incorrect today. There are
many excellent options for the patient with sensorineural
hearing loss.
A person with a sensorineural hearing loss may report that
they can hear people talking, but they can?t understand
what they are saying. An increase in the loudness of speech
may only add to their confusion. This person will usually
hear better in quiet places and may have difficulty understanding
what is said over the telephone.
______Central hearing impairment occurs when auditory centers
of the brain are affected by injury, disease, tumor, hereditary,
or unknown causes. Loudness of sound is not necessarily
affected, although understanding of speech, also thought
of as the "clarity" of speech may be affected.
Certainly both loudness and clarity may be affected too.
HEARING AID STYLES:
There are many styles of hearing aids. The degree of the
hearing loss, power and options requirements, manual dexterity
abilities, cost factors, and cosmetic concerns are some
of the factors that will determine the style the patient
will use. The most common styles are listed below:
ITE: In-The-Ear units are probably the most comfortable,
the least expensive and the easiest to operate. They are
also the largest of the custom made styles.
ITC: In-The-Canal units are a little more expensive than
ITEs. They require good dexterity to control the volume
wheels and other controls on the faceplate, and they are
smaller than ITEs.
MC: Mini-Canals are the size between ITC and CIC. A mini
canal is a good choice when you desire the smallest possible
hearing aid while still having manual control over the volume
wheel and possibly other controls.
CIC: Completely-In-the-Canal units are the tiniest hearing
aids made. They usually require a "removal string"
due to their small size and the fact that they fit so deeply
into the canal. CICs can be difficult to remove without
the pull string. CICs do not usually have manual controls
attached to them because they are too small.
BTEs: Behind-The-Ear hearing aids are the largest hearing
aids and they are very reliable. BTEs have the most circuit
options and they can typically have much more power than
any of the custom made in the ear units. BTEs are the units
that "sit" on the back of your ear. They are connected
to the ear canal via custom-made plastic tubing. The tubing
is part of the earmold. The earmold is custom made from
an ear impression to perfectly replicate the size and shape
of your ear.
EAR IMPRESSIONS:
All custom made hearing aids and earmolds are made from
a "cast" of the ear. The cast is referred to as
an ear impression. The audiologist or hearing aid dispenser
makes the ear impression in the office. It takes about 10
to 15 minutes. The audiologist places a special cotton or
foam dam in the ear canal to protect the eardrum, and then
a waxy material is placed in the ear canal. When the material
hardens (about 5 to 10 minutes later) the wax cast, along
with the dam are removed from the ear canal. Often, the
ear canal will be "oily" after the impression
is removed. This is normal. The oil comes from the wax material
and prevents the wax material from sticking to the skin.
Tell the audiologist before the ear impression is obtained
if you are allergic to plastic or dyes!
REALISTIC EXPECTATIONS:
Hearing aids work very well when fit and adjusted appropriately.
They amplify sound! You might find that you like one hearing
aid better than the other. The left and right hearing aids
will probably not fit exactly the same and they probably
won?t sound exactly the same. Nonetheless, hearing aids
should be comfortable with respect to the physical fit and
sound quality. Hearing aids do not restore normal hearing
and are not as good as normal hearing. You will be aware
of the hearing aids in your ears. Until you get used to
it, your voice will sound "funny" when you wear
hearing aids. Hearing aids should not to be worn in extremely
noisy environments. Some hearing aids have features that
make noisy environments more tolerable, however, hearing
aids cannot eliminate background noise.
THREE LEVELS OF HEARING AID TECHNOLOGY:
There are essentially three levels of hearing aid technology.
We refer to these as analog, digitally programmable, and
digital.
ANALOG technology is the technology that has been around
for many decades. Analog technology is basic technology
and offers limited adjustment capability. It is the LEAST
expensive.
DIGITALLY PROGRAMMABLE technology is the "middle grade"
technology. Digitally programmable units are analog units
digitally controlled by the computer in the office to adjust
the sounds of the hearing aid.
DIGITAL technology is the most sophisticated hearing aid
technology. Digital technology gives the audiologist maximum
control over sound quality and sound processing characteristics.
There are qualitative indications that digital instruments
do outperform digitally programmable and analog hearing
aids. Digitals are not perfect, but they are very good.
Digital hearing aids have been widely available since 1996.
DIGITAL HEARING AIDS:
The term DIGITAL is used so often today, it can be confusing.
When the term "digital" is used while referring
to hearing aids, it generally means the hearing aid is 100%
digital. In other words, the hearing aid is indeed a "complete
computer". 100% digital hearing aids have been commercially
available since 1996 and are wonders of modern technology.
100% digital hearing aids can process sound using incredibly
fast speeds such as 100 to 200 million calculations per
second. Interestingly, most 100% digital hearing aids have
analog components, such as the microphone and the receiver.
100% digital hearing aids transform analog information into
a digital signal and process the sound to maximize the speech
information you want to hear, while minimizing the amplification
of sounds you do not want to hear.
Digital technology is tremendous and it allows the audiologist
maximal control over the sound quality and loudness of the
hearing aid. Importantly, digital technology allows the
audiologist to tailor or customize the sound of your hearing
aids to what you need and want to hear. In summary, if you
want the best technology-- get 100% digital hearing aids.
YOUR OWN VOICE:
When you wear hearing aids for the first time, you will
probably notice your voice sounds funny! You will hear your
voice amplified through the hearing aid. You may describe
this sensation as feeling "plugged up" or hearing
your voice echoing. This is normal and will usually go away
in a few days after you have given yourself a chance to
get accustomed to your new hearing aids and learned to adjust
the volume control. There are adjustments that the audiologist
can do to relieve these symptoms, should these persist beyond
the first few days of wearing your new aids.
GETTING USED TO HEARING AIDS:
People learn at different rates. Some people need a day
or two to learn about and adjust to their hearing aids,
most need a few weeks and some may need a few months. There
is no perfect way to learn about hearing aids. I usually
recommend you wear the hearing aids for a few hours the
first day, and add about an hour a day for each day that
follows. Do not try to set an endurance record. Over a period
of time you will lengthen the amount of time that you wear
the aid. Eventually you will wear the hearing aids most
of your waking hours. It is recommended that you interact
with those people you are most familiar with during your
first few days. Start off listening with your hearing aids
in a favorable listening environment and work towards more
difficult listening situations. Let your friends and family
know that you are using your new hearing aids.
Helpful Steps to Learning to Use a Hearing Aid:
Use the aid at first in your own home environment.
Wear the aid only as long as you are comfortable with it.
Accustom yourself to the use of the aid by listening to
just one other person - husband or wife, neighbor or friend.
Do not strain to catch every word.
Do not be discouraged by the interference of background
noises.
Practice locating the source of the sound by listening
only.
Increase your tolerance for loud sounds.
Practice learning to discriminate different speech sounds.
Listen to something read aloud.
Gradually extend the number of persons with whom you talk,
still within your own home environment.
Gradually increase the number of situations in which you
use your hearing aid.
Take part in an organized course of aural rehabilitation,
see your audiologist to learn about these courses.
HEARING and VISION and COMMUNICATION:
To maximally communicate, you need to use hearing from
both ears (binaural hearing) and you need to use your eyes
and ears together. You will not communicate well using your
hearing aids alone. To facilitate optimal communication,
you will need to pay attention to the speaker?s gestures
and facial expressions! To maximize communication remember
to watch the person speaking, reduce the distance between
the speaker and the listener, reduce or eliminate background
noises from the listening environment and use good lighting.
If someone is speaking to you from across the room, while
the TV is on, while doing the dishes, it will be very difficult
to adequately communicate, despite fantastic hearing aids!
BINAURAL HEARING: DO I NEED TWO HEARING AIDS?
Basically, if you have two ears with hearing loss that
could benefit from hearing aids, you need two hearing aids.
It is important to realize there are no "normal"
animals born with only one ear. Simply stated, you have
two ears because you need two ears. If we try to amplify
sound in only one ear, you cannot expect to do very well.
Even the best hearing aid will sound "flat" or
"dull" when worn in only one ear.
Assuming you have two ears that hear about the same, you
can do a little experiment at home to better understand
how important binaural hearing is:
First, gently close just one ear, by simply pressing the
little fleshy part in the front of your ear canal (the tragus)
into your ear canal -- a little. Do not apply pressure,
do not hurt yourself. Just close the ear canal to eliminate
sound from entering the ear. The idea is to close that ear
for about ten minutes while you watch TV or listen to the
radio, or speak with your spouse. Then, after a full ten
minutes, remove your finger. What an amazing difference!
There are many advantages associated with binaural (two
ear) listening and importantly, there are problems associated
with wearing only one hearing aid -- if you are indeed a
candidate for binaural amplification.
Localization (knowing where the sound came from) is only
possible with two ears, and just about impossible with one
ear. Localization is not just a sound quality issue; it
may also be a safety issue. Think about how important it
is to know where warning and safety sounds (sirens, screams,
babies crying, etc) are coming from. Using both ears together
also impacts how well you hear in noise because binaural
hearing permits you to selectively attend to the desired
signal, while "squelching" or paying less attention
to undesired sounds such as background noise.
Binaural hearing allows a quality of "spaciousness"
or "high fidelity" to sounds, which cannot occur
with monaural (one ear) listening. Understanding speech
clearly, particularly in challenging and noisy situations,
is easier while using both ears. Additionally, using two
hearing aids allows people to speak with you from either
side of your head ? not just your "good" side!
People cannot hear well using only one ear. There are studies
in the research literature that show that children with
one normal ear and one "deaf" ear are ten times
more likely to repeat a grade as compared to children with
two normally hearing ears. Additionally, we know that if
you have two ears with hearing impairment, and you wear
only one hearing aid, the unaided ear is likely to lose
word recognition ability more quickly than the ear wearing
the hearing aid.
PHYSICAL FIT:
One concern with all new hearing aids is the physical fit.
Hearing aids need to be comfortable, not too tight and not
too loose, they should fit just right. Do not wear the hearing
aids if they cause any discomfort or irritations. Do call
your audiologist to schedule an appointment time to remedy
the problem as soon as possible. Do not wear them if they
are uncomfortable.
BACKGROUND NOISE:
Virtually all patients wearing hearing aids complain about
background noise at one time or another. There is no way
to completely eliminate background noise.
Remember, when you had normal hearing there were still
times when background noise was a problem. It is no different
now, even with properly fit hearing aids! The good news
is there are circuits and features that help to reduce (or
minimize) background noise and other unwanted sounds. In
fact, there are research findings that demonstrate digital
hearing aids with particular circuit and microphone options
can effectively reduce background noises. Please speak with
your audiologist about this.
Many early digitally programmable (and even some digital)
circuits, which claimed to reduce or eliminate background
noise, actually filtered out low frequency sounds. This
indeed made the sounds appear quieter, however, not only
was the background noise made quieter, but so too, was the
signal (the speech sound).
Newer ways to reduce background noise are based on timing
and amplitude cues and other noise processing strategies,
which 100% digital hearing aids can incorporate. These methods
work, but are not perfect. Directional microphones are available
and are useful as they help to focus the amplification in
front of you, or towards the origin of the sound source.
Directional hearing aids can offer a better signal-to-noise
ratio in difficult listening situations by reducing a little
bit of the noise from the sides or behind you. In most 100%
digital hearing aids, the noise control features help make
noise more tolerable, but do not completely eliminate the
noise.
The best and most efficient way to eliminate or reduce
background noise is through the use of FM technology. Please
speak with your audiologist about this.
MAINTENANCE:
More than 75 percent of all hearing aid repairs are due
to moisture and earwax accumulating in the hearing aid.
The vast majority of these repairs are 100 percent preventable.
It is extremely important to clean the entire hearing aid
every time it is removed from your ear by wiping and brushing
it. To better protect your investment, use a DRY-AID kit
every night! Electronic dry-aid kits are the best. They
include a germicidal light that kills most bacteria and
other germs. They also have desiccants to absorb moisture
and fans to circulate air around the internal components
of the hearing aid. Get in the habit of cleaning the hearing
aid after each use and keeping the hearing aid in the dry-aid
kit at night. The hearing aid is electronic and moisture
is the enemy! Preventive maintenance is the key to trouble
free, long life from a hearing aid. A well maintained hearing
aid can easily last 5 to 7 years, maybe longer.
For more information on hearing aids please visit the following:
Siemens_Hearing_Instruments
Oticon
Sonic_Innovations
GN_ReSound
Starkey
Phonak
Beltone
HEARNG AID BATTERIES:
All batteries are toxic and dangerous if swallowed. Keep
all batteries (and hearing aids) away from children and
pets. If anyone swallows a battery it is a medical emergency
and the individual needs to see a physician immediately.
One question often asked is "How long does the battery
last?" Typically they last 7-14 days based on a 16
hour per day use cycle. Batteries are very inexpensive,
costing less than a dollar each. Generally, the smaller
the battery size, the shorter the battery life. The sizes
of hearing aid batteries are listed below along with their
standard number and color codes.
Size 5: RED
Size 10 (or 230): YELLOW
Size 13: ORANGE
Size 312: BROWN
Size 675: BLUE
Today's hearing aid batteries are "zinc-air."
Because the batteries are air-activated, a factory-sealed
sticker keeps them "inactive" until you remove
the sticker. Once the sticker is removed from the back of
the battery, oxygen in the air contacts the zinc within
the battery, and the battery is "turned-on". Placing
the sticker back on the battery will not prolong its life.
Since many of today's automatic hearing aids do no have
"off" switches, removing the battery at night
assures that the device is turned off. Zinc-air batteries
have a "shelf life" of up to three years when
stored in a cool, dry environment. Storing zinc-air hearing
aids in the refrigerator has no beneficial effect on their
shelf life, in fact, quite the opposite may happen. The
cold air may actually form little water particles under
the sticker. Water is made of oxygen and hydrogen. If the
water vapor creeps under the sticker, the oxygen may contact
the zinc, and the battery could be totally discharged by
the time you peel off the sticker! Therefore, the best place
to store batteries is in a cool dry place, like the back
of your sock drawer, not the fridge!
For More Information on Hearing Aid Batteries CLICK HERE.
WHAT ARE ASSISTIVE LITSENING DEVICES (ALDs)?
You may have certain communication needs that cannot be
solved by the use of hearing aids alone. These situations
may involve the use of the telephone, radio, television,
and the inability to hear the door chime, telephone bell,
and alarm clock. Special devices have been developed to
solve these problems. Like hearing aids, assistive listening
devices make sounds louder. Typically, a hearing aid makes
all sounds in the environment louder. Assistive listening
devices can increase the loudness of a desired sound (a
radio or television, a public speaker, an actor, someone
talking in a noisy place) without increasing the loudness
of the background noises. This is because the microphone
of the assistive listening device is placed close to the
speaker, while the microphone of the hearing aid is always
close to the listener.
ARE ALDs ONLY FOR PEOPLE USING HEARING AIDS?
No. People with all degrees and types of hearing loss --
even people with normal hearing can benefit from assistive
listening devices. Some assistive listening devices are
used with hearing aids; some are used without hearing aids.
WHAT TYPES OF ALDs EXIST?
There are many assistive listening devices available today,
from sophisticated systems used in theaters and auditoriums
to small personal systems.
Various kinds of assistive listening devices are listed
below:
Personal Listening Systems: There are several types of
personal listening systems available. All are designed to
carry sound from the speaker (or other source) directly
to the listener and to minimize or eliminate environmental
noises. Some of these systems, such as auditory trainers,
are designed for classroom or small group use. Others, such
as personal FM systems and personal amplifiers, are especially
helpful for one-to-one conversations in places such as automobiles,
meeting rooms, and restaurants.
TV Listening Systems: These are designed for listening
to TV, radio, or stereos without interference from surrounding
noise or the need to use very high volume. Models are available
for use with or without hearing aids. TV listening systems
allow the family to set the volume of the TV, while the
user adjusts only the volume of his or her own listening
system.
Direct Audio Input Hearing Aids: These are hearing aids
with direct audio input connections (usually wires) which
can be connected to the TV, stereo, tape, and/or radio as
well as to microphones, auditory trainers, personal FM systems
and other assistive devices.
Telephone Amplifying Devices: Most, but not all, standard
telephone receivers are useful with hearing aids. These
phones are called " hearing aid compatible." The
option on the hearing aid is called the T-Coil. The T-coil
is automatically activated on some hearing aids and manually
activated on others. Basically, the telephone and the hearing
aid?s T-coil communicate with each other electromagnetically,
allowing the hearing aid to be used at a comfortable volume
without feedback and with minimal background noise. You
should be able to get hearing-aid-compatible phones from
your telephone company or almost any retail store that sells
telephones. Not all hearing aids have a "T" switch.
Make sure your hearing aids have a T switch before purchasing
a new hearing aid compatible phone! There are literally
dozens of T-coil and telephone coupling systems. Speak with
your audiologist to get the most appropriate system for
your needs.
Cell Phones: Most hearing aids can be used with most cell
phones. Importantly, digital hearing aids and digital phones
may create constant noise or distortion. There may be significant
problems for some hearing aids when used with particular
cell phones! The best person to address this problem is
your audiologist ? speak with your audiologist BEFORE you
buy a cell phone or hearing aids!!!!
Regarding "hands free" systems, there are many
to choose from and hearing impaired users usually benefit
maximally by using binaural hands free systems.
WHAT IS TINNITUS?
Tinnitus is the term for the perception of sound when no
external sound is present. It is often referred to as "ringing
in the ears," although some people hear hissing, roaring,
whistling, chirping, or clicking. Tinnitus can be intermittent
or constant, with single or multiple tones. Its? perceived
volume can range from very soft to extremely loud.
HOW MANY PEOPLE HAVE TINNITUS?
50 million Americans experience tinnitus to some degree.
Of these, about 12 million have tinnitus which is severe
enough to seek medical attention. Of those, about two million
patients are so seriously debilitated by their tinnitus,
they cannot function on a "normal," day-to-day
basis.
WHAT CAUSES TINNITUS?
The exact cause (or causes) of tinnitus is not known in
every case. There are, however, several likely factors which
may cause tinnitus or make existing tinnitus worse: noise-induced
hearing loss, wax build-up in the ear canal, certain medications,
ear or sinus infections, age-related hearing loss, ear diseases
and disorders, jaw misalignment, cardiovascular disease,
certain types of tumors, thyroid disorders, head and neck
trauma and many others. Of these factors, exposure to loud
noises and hearing loss are the most probable causes of
tinnitus. I strongly recommend that an audiologist and a
physician should evaluate all presentations of tinnitus.
TINNITUS MANAGEMENT and TREATMENT?
There are many options for people who experience tinnitus.
Some wear hearing aids to help cover up their tinnitus,
some wear tinnitus maskers. Additionally, there are combined
tinnitus maskers and hearing aids ? all in one unit! Some
patients require counseling to help them develop strategies
to manage their tinnitus. If you?ve been told "learn
to live with it," there are many additional options
to explore. Your audiologist is an excellent resource for
issues and answers related to tinnitus. Additionally, I
recommend that all people with tinnitus visit the American
Tinnitus Association website for more information, ideas
and strategies concerning tinnitus. http://www.ata.org/
MIDDLE EAR IMPLANTS:
Middle ear implants are surgically implanted devices. The
FDA has approved specific middle ear implants and the FDA
is still reviewing others. The middle ear implant is a useful
hearing instrument and is quite different from traditional
hearing aids. Generally speaking, hearing aids reproduce
sounds and make them louder than the original sound. When
a hearing aid is placed in the ear canal, the loud sound
is perceived by the hearing impaired ear. Middle ear implants
work by vibrating the middle ear bones, rather than by producing
audible sound.
Therefore, middle ear implants are less likely to produce
feedback, and they do not occlude, or "plug up"
the ear canal. Additionally, for most people wearing middle
ear implants, their hair tends to cover up the external
device.
In summary, the reported benefits of middle ear implants
are elimination of the occlusion effect, elimination/reduction
of feedback, reduction in distortion, improved clarity,
as well as some cosmetic advantages.
Middle ear implants are an excellent alternative for people
with moderate to severe sensorineural hearing loss, after
they have tried traditional hearing aids for a few months
and after they have determined that traditional hearing
aids are not able to provide the desired benefit.
If you are considering a middle ear implant, speak with
your audiologist. Your audiologist can direct you to an
otolaryngologist, otologist or neurotologist with experience
and expertise in implanting these devices.
Not all patients are surgical candidates, and each candidate
does not receive the same benefit. Nonetheless, middle ear
implants are an option, and are worthy of further consideration
for appropriate patients. Again, the best source for initial
information on this topic is your audiologist.
For more information on middle ear implants, CLICK HERE.
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 you.
For more information on cochlear implants please visit
the following:
Advanced Bionics
MED EL and
Cochlear.
RECOMMENDTAIONS and WARNINGS:
Please review this information with your spouse or loved
ones and please feel free to discuss all of these issues
with your audiologist and/or your physician.
Federal regulation prohibits any hearing aid sale unless
the buyer has first received a medical evaluation from a
licensed physician. However, if you are at least 18 years
old, you can sign a form (waiver) that says you are fully
aware of your rights but choose not to have the medical
evaluation. Then, you can purchase hearing aids without
seeing a physician. For people under 18 years of age, waiver
of the medical evaluation is not permitted. These rules
and regulations may vary state-by-state and you certainly
need to check with your state rules, regulations and laws.
I do not recommend using waivers.
I believe your best health interest is served by seeing
a licensed audiologist for a complete audiometric evaluation
and seeing an otolaryngologist for the medical and/or surgical
diagnosis and treatment of all ear and hearing disorders
and diseases.
The opinions throughout this article are those of the author.
Other audiologists and otolaryngologists may have different
opinions and recommendations. Additionally, each patient
and each hearing problem is unique. "Self-diagnosis"
and treatment is unwise, is not recommended and may indeed
lead to a worsening situation.
Some state associations, national associations and indeed
many state and federal rules and regulations vary from location-to-location
and they change over time. Therefore, it is very important
for you to check with your local licensed health care professionals
to verify and confirm the information in this pamphlet,
and to best determine how it applies to you and your situation,
if at all.
This article may be downloaded and photocopied in its entirety
(only) for personal and educational purposes.
If you have questions, or would like to contact the author,
you can contact Dr. Beck at email address: audsx2@aol.com.
ACKNOWLEDGEMENT:
Dr. Beck wishes to thank: Aimee LaCalle Au.D., at HearLab
Inc. in San Antonio, Texas, and Barbara Beck, Au.D Candidate,
from Audiology Online in San Antonio, Texas for their kind,
thoughtful and helpful review of this manuscript.
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