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27.12.2014

Tinnitus or hearing loss, hearing test pitch - Review

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Tinnitus is most frequently the result of hearing loss and most people who experience hearing loss will have tinnitus as one of the symptoms. There are two basic types of hearing loss: conductive hearing loss, and sensorineural hearing loss. Sensorineural hearing loss occurs when there is damage to the inner ear, or cochlea, or to the nerve pathways from the inner ear to the brain. During the research for this article I was intrigued to discover how the various tests for hearing loss, audiograms and tympanograms, can narrow down the type of hearing loss and provide very precise information on exactly what problems may have developed and how well the ears are functioning. Hearing threshold levels are determined between 250 and 8000 hertz (Hz) and measured in decibels (dB). Figure 6.2 shows a typical audiogram for someone with age-related hearing loss (presbycusis). Author’s Note: This is the type of hearing loss that many tinnitus sufferers and I display. There are many contributing factors to conductive hearing loss, many of which impact directly on tinnitus. In the event the home treatments are not satisfactory, or if the wax has accumulated to the extent that it blocks the canal and reduces hearing, a physician may describe eardrops designed to soften wax, or he may wash or vacuum it out. Despite that opinion, there are many treatment options that, while not a cure, will result in a lessening of the tinnitus associated with hearing loss.
Disease conditions such as Meniere’s disease can lead to sensorineural hearing loss and tinnitus.
There are over 200 prescription and over-the-counter medications that can cause or worsen hearing loss. This is a very common cause of hearing loss and tinnitus and is the cause of my hearing loss, as mentioned in the previous article. Below are the maximum noise levels on the job to which you should be exposed without hearing protection and for how long. Commonly referred to as age-related hearing loss, Presbycusis is by far the most frequent cause of hearing loss in the elderly.


Presbycusis can be prevented but once it occurs it joins the stable of other causes of sensorineural hearing loss and becomes permanent.
Numerous reports in the literature indicate that head trauma, which includes concussion and whiplash, causes hearing loss and tinnitus.
Arches Tinnitus Formulas were developed to help people suffering from tinnitus due to sensorineural hearing loss, regardless of the cause. There are many factors that have been associated with an increased risk of developing tinnitus. Another hypothesis is that tinnitus develops because of changes in how the brain processes sound in response to altered input from the cochlea.
While exact numbers are difficult to determine, the American Tinnitus Association estimates that 70% of tinnitus is due to hearing loss.
In normal hearing, sound vibrations are funneled by the outer ear into the ear canal where they cause vibrations in the eardrum. The average hearing loss in otitis media with effusion is 24 dB, equivalent to wearing earplugs, however thicker fluid can cause hearing loss up to 45 dB. The primary symptom is slowly progressing hearing loss that can begin anytime between the ages of 15 and 45 but it usually starts in the early 20’s.
In the hands of an inexperienced doctor, this can lead to a worsening condition and tinnitus can be dramatically increased. We have heard from countless people who complained of hearing loss and tinnitus after taking a new medication.
Most experts agree that continual unprotected exposure to more than 85 decibels is dangerous and leads to hearing loss. As we age, the outer hair cells in the cochlea gradually deteriorate causing bi-lateral hearing loss, primarily in the higher frequencies. Seidman has also written a book called “Save Your Hearing Now” that details the progressive damage done to the inner ear by free radicals and outlines a complete plan for preventing damage and prolonging acute hearing ability. This is a very rare, slow-growing, non-malignant tumor that occurs on the 8th cranial nerve controlling hearing and balance.


This overview will discuss the various types of hearing loss, the causes and available treatments, when applicable. Conductive hearing loss occurs when sound is not conducted efficiently through the outer ear canal to the eardrum and the small bones of the middle ear. Sensorineural hearing loss is considered by the medical establishment to be permanent because there is no medically recognized treatment or surgery that will cure the condition.
During the audiogram, independent hearing thresholds are determined for both air conduction and bone conduction.
Amplifying garbled speech with a hearing aid has very little benefit for someone with poor speech discrimination. The 0 dB level is normalized to the minimum hearing level of young healthy adults and does not mean there is an absence of sound. The device allows the bones of the middle ear to resume movement, which stimulates the fluid in the inner ear and improves or restores hearing.
If the perforation is due to a sudden traumatic or explosive event, the hearing loss and resultant tinnitus can be severe. Surgery is usually very successful in permanently closing the perforation and improving hearing. It involves a fluid build-up in the vestibular system that will eventually damage the hair cells of the cochlea leading to permanent hearing loss and tinnitus. Anyone who already has hearing loss should exercise caution when taking new prescription medications. Patients with presbycusis may also have difficulty with speech discrimination and complain of tinnitus. The hearing loss mimics the hearing loss due to noise exposure, with a typical downward notch at 4 KHz.



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