DISEASES OF THE EAR : OTOSCLEROSIS (OTOSCLEROSIS) - etiology, pathogenesis, symptoms and course of, recognition, prediction and prevention
In women more often than men; the disease usually begins at a young age.
Spongy, and then forgetting the transformation of the bone capsule of the labyrinth, mainly in the area of the oval window, then on the promontorium, the apex of the cochlea and internal auditory canal. As a result of complete immobility of the stapes, the loss of nerve endings in the cochlea and internal auditory canal. The process is usually bilateral, leads to a sharp decrease in hearing, sometimes to deafness.
Symptoms and recognition. Noises in the ears and head, progressive hearing loss, better hearing in noisy environments. Otoscopy: normal in most cases; the eardrum, through which in the initial period of the disease shines through intensely congested labyrinth wall; the Eustachian tube is normally passable, reflex to the tickling of the ear canal is lowered. No or insignificant amount of sulfur in the outer ear canal. A dramatic lengthening of bone conduction, the strong negative symptom Rinne and a significant increase of the lower bound of hearing.
For. Progressive deafness, which has in the initial stage all the properties of defeat conductive, and then zvukovosprinimajushchy apparatus. The rapid development of different process - there are the stops of improvement followed by deterioration.
Prediction adversely to the ear.
Large doses of iodine; calcium orally and intravenously; learning to read lips.