Hearing loss (deafness)

Hearing loss (deafness)'s disease overview

hearing impairment , also known as deafness or hearing loss is the condition that the patient can hear some Sound, but very poor. Or maybe not hearing someone say, even if they are using a normal voice or may only hear very loud sounds. There are three types of hearing loss:

  • Transmission (related to outer or middle ears)
  • Neurology (related to internal ears)
  • Mixed (combining both)

    • Aging and chronic exposure to loud noise contributes to hearing loss. Other factors, such as excessive earwax, can temporarily reduce the level of ear acquisition. Hearing loss can occur in many different ways for everyone of all ages. Unable to completely improve hearing loss types. However, doctors or hearing experts can perform treatments to improve what hears.

    Causes of Hearing loss (deafness)'s disease

    ears include three main areas: outer ear, middle ear and inner ear. Sound waves pass through the outer ear and cause vibration in the eardrum. The eardrum and three small bones of the ear amplifier the vibrations when they move to the inner ear. There, the vibrations transmitted through liquid in the screw -shaped structure in the inner ear (screw).

    is attached to nerve cells in the cochlea, thousands of small hairs that help convert sound vibrations into electrical signals that are transmitted to the brain. The brain turns these signals into sound.

    Causes of hearing loss include:

  • congenital: Ear deafness in infants often has congenital causes.
  • Input lesions: aging and exposure to loud noise can cause wear and tear on hair or nerve cells in snails to send Sound brand to the brain. When these hairs or nerve cells are damaged or disappear, the electrical signal is not effectively transmitted and hearing loss.

    • Noise: A very loud noise, like gunfire or explosion, can damage hearing. Therefore, loud and long noise for a while, like living next to an airport runway can cause poor hearing.

  • Earwax accumulation: Earwax can block the ear canal and prevent sound transmission. Earwax removal can help restore hearing.

    • Abnormal infection and bone growth or tumor: in the outer or middle ear, any change can cause hearing loss.

  • Tear eardrum (perforation of the eardrum): The loud explosions, the pressure change suddenly, poking the eardrum with a sharp object that can cause the eardrum to be torn and affect hearing.

    • Drugs: Some drugs, including some cancer, heart disease and severe infections, can damage the ears and cause hearing loss. Sometimes, it is permanent, but in other cases, this problem will disappear after stopping the drug.

    Symptoms of Hearing loss (deafness)'s disease

    In many cases, hearing decreases so most people do not pay attention to it. Signs and symptoms of hearing loss may include:

  • Difficult to listen to other words and sounds.

    • Pick up words, especially when there are noise around or in a crowd.

  • It is difficult to hear the consonants.
  • often ask others to speak more slowly, clearly and bigger.
  • Need to increase the volume of TV or radio.
  • Conversation becomes difficult.
  • Less interest in social relationships.

    • People at risk for Hearing loss (deafness)'s disease

    Factors that can damage or lead to loss of hair and nerve cells in the inner ear include:

  • Aging: degeneration of the ear structure occurs over time.
    • loud noise: Exposure to loud sound can damage the cells of the inner ear. The consequences may occur in long -term exposure to loud noise or from a short explosion, such as gunfire. genetic: Genetic characteristics have an impact on the ear damage from sound or impairment due to aging.

    Occupational noise: Works in the environment with loud and regular noise, such as agriculture, construction or factory work, can lead to lesions In the ears. entertainment noise: exposed to explosive noise, such as guns and jet engine, can cause instant or permanent hearing loss. Other entertainment activities with dangerous high noise include skiing, motorbike ride or big music.

    Some drugs: drugs such as Gentamicin, Sildenafil (Viagra) and some valence drugs, can damage the inner ear. Temporary effect on hearing - tinnitus or hearing loss - can occur if high -dose aspirin, some painkillers, anti -malaria or diuretics.

    Some diseases: such as meningitis, can damage ear snails.

    Prevention of Hearing loss (deafness)'s disease

    The following steps can help prevent hearing loss due to noise and avoid hearing loss due to age:

  • Protect ears: limiting time and intensity of noise exposure is the best way to protect. At the workplace, plastic ear button or glycerin -containing earplugs can help protect the ears from noise.

    • Test of hearing: Consider regular audience tests if working in a noisy environment.

  • Avoid risks from entertainment activities: Activities such as sleds, hunting, using electrical tools or listening to rock concerts can damage hearing Sensory over time. Wearing hearing or breaking equipment and avoiding noise can protect the ears. Reducing the volume when listening to music is also very helpful.
  • Check the drugs that are at risk of hearing loss: about 200 drugs that can damage hearing, including some antibiotics and anti -cancer drugs. Even high -dose aspirin can be harmful to the ears. If you take prescription medication, check it with your doctor to make sure it is safe. If you have to use a drug that can be harmful to the ear, make sure your doctor checks for hearing before and during treatment.
  • Properly removing earwax: Do not use a cotton swab to clean the ears - they can push the earwax deeper.

    • Diagnostic measures for Hearing loss (deafness)'s disease

    Diagnosis of hearing loss has two steps:

  • Hearing test
  • Full hearing test
    • Hearing test

    Audio test is a test to know if people may lose hearing. Hearing tests are easy and painless. In fact, babies often sleep while being tested and only takes a very short time, usually only a few minutes.

  • Infants: All newborns are not more than 1 month old should be tested for hearing impairment. It is best for babies to be screened before leaving the hospital after birth. If the baby does not pass the auditory test, it is very important to check the full hearing as soon as possible, but not later than 3 months later.
  • older children and children: If you think a child may lose hearing, go to the doctor to check the hearing as soon as possible. Children are at risk of hearing loss or retardation, so there is at least one hearing test from 2 to 2 and a half years. Hearing loss worse over time is called hearing loss or progressive hearing loss. Hearing loss appears after the baby is born called late onset hearing. Should find out if a child may be at risk of hearing loss.

    • If a child does not pass the auditory test, the full hearing test should be done as soon as possible.

    full hearing test

    all children who do not pass the hearing test should be fully heard. This test is also called audio assessment. An audiologist trained to check the auditory, will take the full audience test. In addition, audiology experts will also ask questions about obstetric history, ear infections and hearing loss in the family.

    There are many types of tests that can be done to find out how a person has hearing loss, how much hearing loss and what kind of hearing loss. Hearing tests are easy and painless.

    Some used tests include:

  • Testing for hearing brain reactions (ABR) or testing reaction test (Baer). The hearing brain reaction (ALR) or hearing stimulation reaction (Baer) is a test test test for sound.
  • Audio testing test (OAE): is a test test test of the internal ear reaction for audio.
  • Hearing audio evaluation: This method will check the way a person reacts with the overall sound. Evaluation of hearing behavior tests of all parts of the ear. The tested person must be alert and proactively answer the sounds heard during the test.

    • Hearing loss (deafness)'s disease treatments

    How to cure deafness

    Treatment depends on the cause and severity of hearing loss.

  • Earwax removal: Earwax obstruction is a cause of hearing loss. Doctors can remove earwax by smoking or with a small tool with a round at the beginning.
    • surgery: Some types of hearing loss can be treated with surgery, including abnormalities of sinuses or earbone (ossicles). If infected many times with persistent fluid, the doctor can insert small tubes to help the ears escape the fluid.

    Hearing aids: If the hearing loss due to an internal ear damage, the hearing aid may be helpful.

  • Electronic ear snail transplant: If the hearing loss is worse and the conventional hearing aid does not improve the symptoms of poor hearing, then the electronic ear snail transplant may be an option other. Unlike audio audio amplifier and directing it into the ear canal, electronic ear snails that help replace the function of the damaged or non -functioning parts of the inner ear and directly stimulate the hearing nerve. .

    • See also:

  • Care and monitor pathology for newborn baby
  • Adults may also have otitis media
  • innate congenital hearing loss screening: Early detection & hearing intervention for children
  • Care and monitor pathology for newborn baby

    • Newborn screening tests should be done immediately after birth

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