People who have otosclerosis have an abnormal extension of spongelike bone growing in the middle ear cavity. Otosclerosis is caused by an abnormal growth of bone in the ears, which causes hearing loss. Under great magnification, hair cells can be seen as the. This growth prevents the ear bones from vibrating in response to. Otosclerosis is a condition where one or more foci of irregularly laid spongy bone replace part of normally dense enchondral layer of bony otic capsule in the bony labyrinth. Otosclerosis see causes, symptoms and treatment surgery. Otosclerosis is a common cause of progressive hearing loss in the young adult population. Surgery for otosclerosis middle ear explorationstapedectomy. This condition affects one of the ossicles the stapes resulting in hearing loss, tinnitus, vertigo or a combination of symptoms.
Most of the time the diagnosis is suspected based on consistent clinical symptoms and physical examination. In its early stages, the sufferer will normally not be affected. Otosclerosis is an abnormal bone growth in the middle ear that causes hearing loss. Otosclerosis is one of the most common causes of progressive hearing loss in younger adults. Otosclerosis affects more than 3 million americans. In otosclerosis, abnormal remodeling disrupts the ability of sound to travel from the middle ear to the inner ear. Introduction otosclerosis primary metabolic bone disease of the otic capsule and ossicles results in fixation of the ossicles and conductive hearing loss may have sensorineural component if the cochlea is involved genetically mediated autosomal dominant with incomplete penetrance 40% and variable expressivity. Keep your head elevated with several pillows when lying down for 2 weeks following surgery. Many cases of otosclerosis are thought to be inherited. A retrospective study has been made of a sample of 479 women with deafness from otosclerosis, classified according to the number of pregnancies they have had and whether there had been a subjective impression of deterioration of hearing during or immediately after at least 1 pregnancy.