1 May

Kurtus - liigid , põhjused, sümptomid , ravi

Contents:

1. Deafness and Hearing Loss

2. Causes Deafness

3. Treatment deafness

4. disease prevention

Deafness is a significantreduction or complete absence of hearing.In turn, the hearing loss is a hearing loss, in which a person can recognize it.From hearing loss deafness has full impossibility of speech perception.

person who is not able to hear as well as hear the person with normal hearing (hearing threshold of 25 dB), deaf.From disabling deafness affects more than 5% of the world population.Most of them - people over 65 years.

distinguish these types of hearing impairment as:

  • light;
  • moderate;
  • heavy;
  • deep.

Deafness can occur in one ear or both, and cause difficulties in the auditory perception of loud sounds or speech.

Deafness and Hearing Loss

Very often in medicine there is such a thing as "deafness", which means a partial hearing loss that ranges from mild to severe.

Deafness as a form of deafness is divided into species such as:

  • conductive hearing lo
    ss (triggered by some mechanical obstacle in the ear canal or middle ear, which, in turn, blocks the conduct of sound);
  • sensory hearing loss (caused by damage to the inner ear);
  • neural hearing loss (arises as a result of damage to the auditory nerve and the auditory nerve pathways in the brain).

latter two forms of the disease are more common as congenital deafness.

Such patients mostly communicate via spoken language, and can use hearing aids and other adjuvants to improve audibility.Patients with more severe hearing loss, the experts usually prescribe cochlear implants.

«Deaf" people often have profound hearing loss, if they hear or very little, or not heard at all.Quite often they are used for communication sign language.

deafness occurs mainly in older people, which is due primarily to the fact that in 40-50 years the majority of people there is a weakening perception of high frequencies, causing hearing loss first and then deafness.In recent years, hearing diseases were rapidly getting younger.The cause of deafness in young age became a regular listening to various audio player with headphones at extremely high volume.

Causes Deafness

Today science identifies the causes of deafness such as congenital and acquired.Congenital deafness - hearing loss, which is already there at birth or shortly after birth occurs.The disease can be caused by hereditary or genetic causes, as well as a number of complications during pregnancy and childbirth.Thus, congenital deafness may result from:

  • lack of oxygen (asphyxia) during childbirth;
  • syphilis, rubella, and other diseases of the mother during pregnancy;
  • low child birth weight;
  • severe jaundice in the newborn period, which can cause nerve damage hearing child.

In addition to these factors, congenital deafness can cause improper use during pregnancy ototoxic medications such as diuretics, aminoglycosides, antimalarial and cytotoxic drugs.

As for acquired reasons, they result in hearing loss at any age.For these reasons, deafness include:

  • some infectious diseases (measles, meningitis, mumps);
  • chronic infection of the ears, which is accompanied by various secretions from the ear (ear wax, blood, pus);
  • otitis media (fluid accumulation in the ear);
  • treatment of ototoxic drugs;
  • head trauma or ear;
  • excessive noise (working with noisy equipment, exposure to loud noises, music);
  • senile hearing loss - age hearing loss, which is caused by degeneration of the sensory cells;
  • excess ear wax or foreign objects into the ear canal (This hearing loss is often mild and easily corrected);
  • chronic otitis media (mainly in children).

Treatment deafness

As pointed out by experts, deafness treatment primarily depends on its cause.When sulfur is removed conductive hearing loss, fluid or mechanical obstruction to the ear canal.When persistent forms of the disease, taking into account the irreversibility of the pathological process, deafness treatment consists in an attempt to compensate for hearing loss.For these purposes are generally used hearing aids (hearing aid), or cochlear implant (in rare cases).

Prevention

disease According to scientific evidence, many cases of deafness can be successfully prevented.For simple prevention strategies for the disease include:

  • children immunized against certain childhood diseases (measles, rubella, meningitis, mumps);
  • immunize adolescent girls and women of childbearing age against rubella;
  • screening of pregnant women for the presence of infectious diseases and their treatment;
  • direction of newborn children who are in the high risk group (those born with low birth weight, meningitis, jaundice, or asphyxia, as well as the presence of deaf family members) on the early diagnosis of hearing loss;
  • use of ototoxic drugs for any other purpose, and under the supervision of an experienced professional;
  • reduce the impact of loud noises on the body of human hearing.

Thus, prevention and timely treatment of deafness - these are the measures by which it is possible to significantly reduce the symptoms of this disease or even prevent it.

Attention!

This article is available exclusively in the educational purposes and is not research material or professional medical advice.

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