Hearing loss Causes

Hearing loss

    * Introduction
    * Causes
    * Diagnosis
    * Treatment
    * Hearing aids
    * Cochlear implant
    * Preventing hearing loss

Causes
Perception hearing loss:

 - Age - auditory acuity reduction due to aging is called presbycusis
 - Brain tumor - an acoustic neurinom (benign tumor of the auditory nerve)
 - Drug intoxication - some antibiotics, aspirin, diuretics
 - Infections - mumps virus (mumps), meningitis
 - Congenital infection - toxoplasmosis, rubella, cytomegalovirus (CMV), herpes, syphilis
 - Congenital anomalies
 - Injury sound - loud noises (90 decibels)
 - Meniere's disease - disease of the inner ear that manifests itself, inter alia, hearing loss, ringing in the ears and vertigo
 - Sudden pressure variations - in flight, swimming, or intense exercise
 - Viral inner ear infection - labyrinthitis
 - An injury to the cochlea - the hearing organ located in the inner ear
 - The impairment of auditory nerve fibers of the nerve or central auditory pathways (which leaves the inner ear and reach the encephalon)

Hearing loss transmission:

 - Cholesteatoma - a benign tumor located in the middle ear caused by infection
 - Serous otitis media - middle ear infection with effusion fluid
 - Obstruction of the ear canal - because a plug of cerumen (wax), a tumor or infection is involved purulent collections
 - Otospongioza - development of a spongy bone in the middle ear, which trains while a progressive deafness
 - Eardrum perforation