With acquired sensorineural hearing loss, most patients do not have any precursors of the disease. In some cases, hearing loss may be preceded by the appearance of noise or ringing in the ears.
In patients with sensorineural hearing loss, complaints of hearing loss on one or both ears, which is often accompanied by subjective noise in the ear (ears), always come first.
Infectious nature accounts for about 30% of neurosensory deafness and deafness. In the first place are viral infections - influenza, mumps, measles, rubella, herpes, followed by epidemic cerebrospinal meningitis, syphilis, scarlet fever and typhus.
Sensorineural hearing loss (sensorineural hearing loss, perceptual hearing loss, cochlear neuritis) is a form of hearing loss in which any of the parts of the sound-sensing part of the auditory analyzer is affected, from the sensory cells of the inner ear to the cortical representation in the temporal lobe of the cerebral cortex.
There are three clinical forms of otogenic sepsis: septicemia, septicopyemia and bacterial shock. A characteristic symptom of sepsis is hectic fever accompanied by chills followed by a torrential sweat. Such sharp ups and downs of temperature during the day can be several, so the temperature of the chela is measured every 4 hours.
Abscess - a cavity filled with pus and delimited from surrounding tissues and organs by a pyogenic membrane. By the time of occurrence, the abscesses are divided into early and late ones. To late carry abscesses, formed later 3 months.
Otogenny diffuse purulent meningitis (leptomeningitis) - inflammation of the soft and arachnoid shells of the brain with the formation of purulent exudate and increased intracranial pressure.
Subdural abscess is an accumulation of pus under the dura mater of the brain. Subural abscess develops as a complication of chronic purulent otitis media, especially cholesteatom, much less often acute. It is localized in the middle or posterior cranial fossa.
Extradural abscess is an accumulation of pus between the dura mater and the bones of the skull. Extradural abscess occurs as a result of the spread of the inflammatory process from the mastoid process and the tympanic cavity to the cranial cavity and is localized in the posterior or in the middle cranial fossa.
Otogennye intracranial complications are complications resulting from the penetration of infection into the cavity of the skull with purulent inflammation of the middle and inner ear.