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Determining the type and causes of hearing loss depends on where the hearing loss takes place in the ear. Conductive hearing losses (CHL) are identified within NewSound Hearing Aid Centers comprehensive otoscopic examination and audiometic testing. Comprehensive audiometric testing will ascertain the levels of hearing loss at multiple individual frequencies in each ear resulting in a graph called an Audiogram. Mixed hearing losses contain a combination of conductive and sensorineural loss components.
There are many potential causes of hearing loss regardless of the type from which you suffer. A conductive hearing loss occurs when there is a problem with the one or more of the parts of the ear that conduct sound into the inner ear. There are many potential causes of conductive hearing loss, with some causes being easier to treat than others. If you have any questions about conductive hearing loss or hearing loss in general, please contact our practice to speak with an audiologist.
Today, 25 percent of adults age 45-64 and 40 percent of adults age 65 and older suffer from some degree of measurable hearing impairment.
In normal hearing, sound enters the ear canal and vibrates the tympanic membrane (TM, also called the ear drum). Equally important, full testing will also indicate a patient’s level of speech comprehension.
To determine the type of loss you or a loved one may have, it is best to visit a hearing clinic for a comprehensive otoscopic and audiometric evaluation. The ear canal, ear drum, and the tiny bones in the middle ear make up the conductive system and any hearing loss caused by a problem in one or more of these areas is called a conductive hearing loss.
Malformation of the outer or middle ear structures, a middle ear infection in which fluid accumulates behind the eardrum, abnormal bone growth in the middle ear, a hole in the eardrum, or poor Eustachian tube function may be responsible for conductive hearing loss.


Antibiotics or antifungal medications are usually prescribed for ear infections, whereas surgery is usually an option for malformed or abnormal outer or middle ear structures and other physical problems.
The movement of the TM is transferred into a chain of three very small bones in the Middle Ear. Otosclerosis is a largely hereditary condition that occurs more commonly in women and can be connected to pregnancy or menopause. However, if unrecognized and left untreated, some conductive losses can become extremely serious with permanent impairment to hearing and possibly life-threatening complications. The cochlea is a fluid-filled long tube that is curled like the shell of a snail and lined with thousands of specialized hair cells called cilia. This exposure can be sudden and traumatic, or it can be cumulative over-time and equally damaging to hearing. Hearing loss involves not only the reception of sound but also our brain’s ability to understand speech. There is no reason to continue to suffer the effects of hearing loss and its degradation to one?s quality of life. Unlike a sensorineural hearing loss a conductive hearing loss occurs because the sound entering the ear is reduced or dampened by the obstruction; there is no damage to the delicate nerves in the inner ear. Rarely, there may be more serious causes of conductive hearing loss and these conditions, if left unidentified and untreated, may have profound medical consequences. Hearing aids are often the best answer when surgery is not possible, because they significantly improve hearing and are convenient.
To understand what causes hearing loss, it is important to appreciate the different types of hearing loss and how they correspond to the physical components of the ear. The bones work on a lever principle, amplifying the energy as it passes to the Inner Ear at the end of the chain. When the stirrup bone of the Middle Ear moves, it sends a hydraulic wave through the cochlea.


Common sources of excessive noise are industrial noise, work-related noise, military service, music, road noise, guns and hunting, or lawn equipment. Over time, if one has a SNHL and it remains untreated without custom-programmed hearing instruments, the brain loses its ability to discriminate speech. At the very least, have a clinician perform an evaluation to establish a base-line for future comparison. A conductive hearing loss can often be partially or completely reversed with medical intervention. Though usually not necessary, implantable hearing devices such as a bone-anchored hearing aid are an excellent alternative if neither surgery nor a traditional hearing aid are feasible options. Anything that impedes the reception, flow, or transfer of energy in the Outer or Middle Ear is known as a Conductive Hearing Loss (CHL). This wave is picked up by the cilia and transposed into electrical impulses sent to the brain.
Once a noise-induced hearing loss begins, we often become even more susceptible to further noise-induced damage. Of course, similar to eyesight, many adults develop a level of hearing loss simply due to natural aging called Presbycusis.
There is a connection between auditory deprivation and the onset of Alzheimer’s disease. A cochlear implant attempts to replace the function of the cilia and is only considered in truly profound cases of SNHL.



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