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07.12.2013
If you have ever been exposed to a sudden loud sound that caused your ears to ring and everything sounded muffled for a little bit then consider yourself lucky.  If that sound had been a little bit louder it might have caused changes to your ability to hear that would have been permanent and irreversible. The increasingly common use of improvised explosive devices, or IEDs, around the world provided the impetus for a new study, funded in part by the U.S.
This could be good news for the millions of soldiers and civilians who suffer long-term hearing damage as a direct result of exposure to a sudden loud noise. Paul is the founder and president of both Holiday Plaza Hearing Aid Center and Manasquan Hearing Aid Center. In Belgium the product is sold under the name "Rilatine" and in Brazil and Portugal as "Ritalina". Explore the tabs below to learn more about hearing aids, hearing loss, and find out if you might be a candidate for hearing loss.
Sensorineural: Sensorineural Hearing Loss occurs when the sensory part of the ear (the inner ear and outer hair cells) or the neural part of the ear (nerve that runs from the ear up to the brain) lose their ability to function normally. Conductive: Conductive Hearing Loss occurs when there is something physically obstructing the ear canal or middle ear and sound cannot be effectively conducted through the canal and middle ear into the inner ear. Ototoxicity: There are classes of drugs that can harm the hair cells in the inner ear and cause hearing loss. Noise Exposure: Noise Induced Hearing Loss (NIHL) occurs when people work or play around loud noises for extended periods of time. Physical Trauma: If there is physical damage to the ear or skull, hearing loss can be permanent or temporary due to the damages inflicted to the structures in the ear or brain. Hearing aids are primarily useful in improving the hearing and speech comprehension of people who have hearing loss that results from damage to the small sensory cells in the inner ear, called hair cells. However, there are practical limits to the amount of amplification a hearing aid can provide. Overview - The microphone and tubing of this type of hearing instrument are hidden in the ear's natural contours, so the instrument is virtually invisible in the ear. If you think you or a loved on might have a hearing loss, call 866-344-7756 today to schedule your FREE hearing evaluation with a provider near you. Mixed hearing loss occurs when a person’s audio-gram shows both SNHL and conductive components.  That means there can be damage present both in the outer and middle ear portion as well as the inner ear. The third identifying factor to your audiogram is the shape of your hearing loss.  Many clinicians will use a term in their report to your physician about the overall shape. Flat loss: A flat hearing loss is one that is approximately the same at all frequencies and is essentially a straight line across the audiogram. Cookie bite loss: A cookie bite loss looks like someone took a bite out of the top end of the audiogram. It is important to know what type, degree, and shape of hearing loss you have so that you can make an informed decision when it comes time to purchase the best instrument for your needs. Infections are usually treated with antibiotics, sometimes with decongestants, and occasionally with drainage by placing a small hole in the eardrum (a procedure called myringotomy).
Ear fluid not caused by infection accumulates commonly in children, and sometimes in adults. Fluid in the ear usually is due to malfunction of the eustachian tube, which connects the ear with the back of the throat.
If it fails to open because of swelling, allergy, or other reasons, the air already in the middle ear becomes trapped. When the negative pressure is great enough, it causes fluid to seep out of the blood vessels that line the middle ear. The presence of fluid causes hearing loss, and sometimes frequently recurring ear infections. When the condition causes frequent middle ear infections (acute otitis media) some physicians recommend the long-term use of antibiotics, although this treatment is currently controversial. Otosclerosis is a common hereditary disease in which new bone is deposited around one of the tiny bones in the middle ear, specifically around the footplate of the stapes (or 'stirrup') bone.
This hereditary condition is present in about 10 percent of white Americans, and it causes significant hearing loss in about one percent. This type of hearing loss can be cured by a surgical procedure called stapedectomy, in which the stapes bone is replaced by an artificial bone. Examples of cancerous tumors are rhabdomyosarcoma, a very rare muscle tumor, in children or squamous cell carcinoma in adults. Examples of noncancerous tumors are glomus tumors (which also cause pulsating ear noises) or neuromas of the facial nerve.
Cholesteatoma is a common noncancerous skin cyst that grows slowly and dissolves adjacent bone as it grows.


There are many conditions that cause the delicate inner portion of the ear to function abnormally. Otosclerosis (the hereditary disease in which bone deposits collect around the small bone in the middle ear known as the stirrup) can also affect the cochlea (the coiled tube in the inner ear), and cause hearing loss in some people. The natural aging process also causes sensorineural hearing loss, in which the damage lies in the inner ear, the hearing nerve, or both.
There also are other age-related causes of hearing loss, including stiffening of portions of the cochlea and loss of nerve endings in the acoustic nerve. Direct head trauma, particularly trauma severe enough to cause unconsciousness, can cause inner ear concussions and hearing loss. Meniere's syndrome is a condition characterized by fluctuating hearing loss (usually more prominent in the lower frequencies where we hear speech), dizziness, fluctuating ear pressure, and tinnitus (a noise sensation heard in one or both ears). An acoustic neuroma is a common tumor of the acoustic nerve, the nerve responsible for hearing.
From Andrew Maynard - Chair of the University of Michigan Department of Environmental Health Sciences, with help from David Faulkner - 2013 Master of Public Health graduate. He has been serving the hearing impaired in the Ocean and Monmouth Counties for more than thirty years. This happens to many people as they age and from the “wear and tear” that we put on our hearing. Oftentimes conductive hearing loss is temporary, but there are some medical conditions where it is permanent.
There is no gradual loss of hearing; moreover people wake up in the morning and find that they cannot hear out of one of their ears at all. Certain mycin drugs, as well as chemotherapy drugs, can damage one’s hearing, especially in the high frequency range. Most often the damage occurs in the high frequencies, but leaving the low frequencies within the normal range. The damage can occur as a result of disease, aging, or injury from noise or certain medicines.
In addition, if the inner ear is too damaged, even large vibrations will not be converted into neural signals. It makes some sounds louder so that a person with hearing loss can listen, communicate, and participate more fully in daily activities. A person will have normal or close to normal hearing in the low frequencies and the high frequencies, but a more significant hearing loss in the middle frequencies. Patient’s will have normal hearing in the middle frequencies, sloping off to considerable losses in the low frequencies and the high frequencies.
Middle ear infections cause swelling of the lining in the middle ear, and often an accumulation of fluid (such as pus).
If infections are severe or inadequately treated, they may cause permanent hearing loss by damaging the ossicles or perforating the eardrum. The job of the eustachian tube is to keep the pressure in the middle ear approximately the same as that in the ear canal and outside world. In some cases, the eustachian tube starts to work again spontaneously and the condition resolves.
This prevents normal bone transmission of sound from the eardrum to the inner ear, and consequently, conductive hearing loss results. This procedure usually only takes 30 or 40 minutes, and it is performed under local anesthesia (in which the person is awake). It is a fairly common problem, especially in people who have had repeated ear infections; but it may also occur from birth. Beginning shortly after birth, we begin to lose hair cells and nerve endings within the cochlea (the region that hears very high frequencies). It is due to a swelling and fluid overload of the middle compartment of the inner ear (a condition known as endolymphatic hydrops). When all tests have revealed none of the known causes, the condition is classified as Meniere's disease.
An estimated 7 to 10 million people in American industry have noise-induced hearing loss, virtually all of which was preventable.
This has been reported not only with loud, electrical rock and roll instruments, but also with classical music performance such as violin playing and flute playing. Middle ear infections can spread to the inner ear, causing loss of hearing and, usually, dizziness. Treatment is controversial, but there is some evidence to suggest that aggressive treatment may improve the chances for hearing recovery even after a sudden profound loss.


It generally starts in the internal auditory canal, the bony channel through which the nerve courses as it goes from the ear to the brain. They are managed best by neurotologists, inner ear subspecialists with particular interest and expertise in treatment of this specific tumor. A few examples of conductive hearing loss are: having wax impacted in the outer ear canal, having fluid in the middle ear (from an ear infection), or having bony growths around or on the ossicles (middle ear bones).
There are some diseases of the ear that present with this symptom, but not all causes of sudden hearing loss are known. Many doctors will do hearing testing to monitor their patients’ hearing throughout a cycle of chemotherapy.
A doctor can cure this easily by removing the wax either with specially designed instruments or by flushing with water.
When there is fluid behind the eardrum and surrounding the ossicles (the three small bones in the ear), these structures cannot work properly, and hearing loss results. The procedure is usually relatively fast, and is generally performed under local anesthesia. As absorption occurs and less and less air is present, its disappearance creates a vacuum (negative pressure), which sucks the eardrum toward the middle ear (retracted ear drum). Otosclerosis generally becomes apparent during early adult life, and the severity of hearing loss can be accelerated by pregnancy.
One can minimize such problems by using ear protection whenever practical, such as during selected practice sessions. Infections may also involve the hair cells or acoustic nerve, causing hearing loss and even sudden total deafness. Once the condition has been present for more than two or three weeks, even the most aggressive treatments generally do not work. Acoustic neuromas grow, compressing the brainstem and other structures, including the facial nerve. However, only about one out of five people who would benefit from a hearing aid actually uses one.
If you place a drop of ink on the eardrum and wait a few weeks, it will turn up near the opening of the ear.
In any case, most conductive hearing loss, in which sound waves are not transmitted effectively to the inner ear, is surgically treatable. Such noise is encountered commonly from gunfire, power tools, snow blowers, motorcycles, loud music (especially with earphones) and other causes.
In the majority of cases, it is possible to remove acoustic neuromas without serious injury and without facial paralysis.
In some tumors diagnosed early, it is even possible to preserve hearing (despite the fact that the tumor has its roots in the acoustic nerve). The hearing aid receives sound through a microphone, which converts the sound waves to electrical signals and sends them to an amplifier.
Cotton swabs generally push wax deeper into the ear than it normally is (wax forms only in the outer segment of the ear canal), and packs it into a mass.
The amplifier increases the power of the signals and then sends them to the ear through a speaker. However, it may also be the result of air pressure changes in an airplane trip, a forceful sneeze, or lifting a heavy object. Advances in hearing aid technology and cochlear implants are helping to improve communication for people affected by hearing loss. You will be asked about other medical conditions and about what over-the-counter and prescription medications you take.
You may be asked to cover one ear at a time while listening to sounds at different volumes.
Tests using a tuning fork can check if there is damage to the parts of the middle ear and eardrum that vibrate. However, the doctor will try to identify the cause of your hearing loss before treatment can begin.




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Comments Sudden hearing loss nerve youtube

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