Types Of Hearing Loss
Hearing impairment is divided into 3 main types: conductive hearing loss, sensorineural hearing loss and mixed hearing loss.
Conductive hearing loss: This type of hearing loss is also called conductive hearing loss.
Conductive deafness occurs when sound is not adequately transmitted through the outer ear canal to the eardrum and the ossicles of the middle ear.
This type of deafness is usually treated with medicine or surgery. After treatment, hearing may improve or return to normal
Conductive audiograms often take the form of: normal bone line (no more than 20Db HL), and impaired airway (but not more than 60dB HL).
Diseases that can cause conduction deafness include: cold, viral, bacterial, or atopic ear infections (closed atopic otitis media) or atrial perforation (otitis media), Poor atrial fibrillation function due to rhinitis, semi-obstructive or atrial fibrillation, tumors of the outer or middle ear canal, external ear canal, earwax, ear foreign body, malformation of the outer ear or ear Between.
Sensorineural hearing impairment
This type of hearing loss, also known as sensorineural hearing loss, occurs when there is damage to the inner ear (cochlea) or nerve pathways from the inner ear to the brain
Most sensorineural hearing loss is permanent, and until now it has not been cured with medicine or surgery.
People with sensorineural hearing loss lose the ability to hear small sounds and even when the sound is loud enough to hear, they cannot hear clearly or understand good words ...
Audiogram: There are many different types of performance paths, the most common being the form of greatly reduced attenuation at high frequencies; In this type of deafness, the bone and airways in the audiogram are usually overlapping or about 5dB apart.
Possible causes of sensorineural hearing loss: old age (hearing impairment), ear poisoning drugs that cause deafness, noise (deafness due to acoustic trauma, occupational deafness), genetics (inherited deafness in syndrome and non-syndrome), head injury, inner ear deformity, meningitis, viral diseases (deafness after measles, mumps, rubella ..
Mixed hearing loss
Also known as mixed deafness, this is a combination of conductive and neurological deafness that occurs when there is damage to the outer, middle, or outer ear and the middle ear to the inner ear or to the auditory nerve. sense.
Audiograms also come in many forms. The airway reduces hearing at all frequencies, often the higher the frequency decreases. The bone path decreases, sometimes the frequency of depression is good but much or greatly reduced at the high frequency. Mixed deafness is the most common form of deafness.. . Dịch vụ: Thiết kế website, quảng cáo google, đăng ký website bộ công thương uy tín
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