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Author: admin, 20.04.2014. Category: Severe Tinnitus Symptoms

Conductive Hearing Loss: Conductive hearing loss occurs when sound waves are prevented from passing from the air to the fluid-filled inner ear. Your Ear Nose Throat Surgeon will perform a number of examinations to determine the presence, extent, location, magnitude, and qualities of any hearing loss.
A physical exam, using an otoscope or ear microscope, will evaluate the ear canal and tympanic membrane. Audiometry involves the presentation of pure tones each ear via headphones or through a bone conductor transducer. Acoustic Reflex testing measures the contraction of a tiny ear muscle that responds to sounds at different volumes. Other tests: patients with conductive hearing losses may require computed tomography (CT) scans of the temporal bones.
Treatment of  Conductive deafness depends on the cause and can be medical,surgical or by hearing aid.

TympanoMastoidectomy – Removal of disease in middle ear and mastoid bone (usually cholesteatoma) with reconstruction of the ossicular chain.
Hearing aids can not restore our original hearing ability, but they can help us to make the very most of the hearing ability we have left. Audiogram and Impedance testing determines the levels of hearing for hearing aid can be selected. The most common types of hearing aids range in size from fitting behind the ear (BTE), in the ear (ITE), in the canal (ITC) and completely in the canal (CIC), the small­est. This may be caused by a variety of problems including buildup of earwax (cerumen), infection, fluid in the middle ear, a perforated eardrum, or fixation of the ossicles, as in otosclerosis . The loudness at which the reflex occurs, or the absence of the acoustic reflex, provides important information. Those with unilateral or asymmetric sensorineural hearing loss should have magnetic resonance imaging (MRI) of the head.

The amount of sound that is absorbed or reflected from the middle ear is measured at the microphone at normal, positive, and negative air pressures. Even so, it takes time to become used to all the new, amplified sounds ­especially if we have lived with a hearing loss for some time and have forgotten how noisy buses and cars sound. The most common types of hearing aids range in size from fitting behind the ear (BTE), in the ear (ITE), and in the canal (ITC) to completely in the canal (CIC), the small­est.

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