otosclerosis


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Related to otosclerosis: stapedectomy, Meniere's disease

otosclerosis:

see deafnessdeafness,
partial or total lack of hearing. It may be present at birth (congenital) or may be acquired at any age thereafter. A person who cannot detect sound at an amplitude of 20 decibels in a frequency range of from 800 to 1,800 vibrations per second is said to be hard of
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.

Otosclerosis

 

an ear disease that is characterized by the abnormal growth of bony tissue into the region of the fenestra vestibuli, which connects the middle ear to the inner ear. Such growth causes the foot plate of the stapes to become embedded in the fenestra vestibuli, thus hindering or blocking transmission of sound oscillations through the auditory ossicles into the internal ear.

The causes of otosclerosis are unknown. Among the assumed related factors are dysfunction of the endocrine glands and loud noises. Otosclerosis is usually bilateral, generally starting in youth, more rarely in childhood. It is much more common in women than in men and is manifested by a progressive loss of hearing and the sensation of noise in the ears. It frequently results in substantial hearing impairment and sometimes even deafness.

Treatment is mostly surgical. Hearing improves in most patients after the operation. Conservative treatment, using either drugs or physical therapy, is ineffective. Hearing aids are resorted to in cases of severe impairment.

REFERENCE

Preobrazhenskii, N. A., and O. K. Patiakina. Stapedektomiia i stapedoplastika pri otoskleroze. Moscow, 1973.

N. A. PREOBRAZHENSKII

otosclerosis

[¦ōd·ō·sklə′rō·səs]
(medicine)
Sclerosis of the inner ear, causing a progressive increase in deafness.
References in periodicals archive ?
Factors affecting postoperative outcome in otosclerosis patients: Predictive role of audiological and clinical features.
This is a retrospective study of 50 patients who were treated surgically for otosclerosis at King Husein Medical Centre of the Royal Medical Services in Jordan, between January 2006 and January 2009.
Surgery for otosclerosis always creates a perilymph fistula resulting in vertigo.
Genetically, otosclerosis is considered to be a multifactorial and complex disease.
Infections or blockages of the ear can be treated and cleared, eardrums can be repaired surgically, and ossicles affected by otosclerosis can be replaced with artificial bones.
Los historiadores medicos no conocen con certeza los motivos por los que Beethoven se quedo sordo, aunque se cree que la lesion nerviosa y la otosclerosis (trastornos que danan los huesos del oido) fueron las causas mas probables.
Increased activity of the diastrophic dysplasia sulfate transporter in otosclerosis and its inhibition by sodium fluoride.
The most common indications for implantation were hearing loss after acoustic neuroma surgery, otosclerosis, and sudden idiopathic hearing loss in the single-sided deafness category, and congenital aural atresia in the conductive/mixed hearing loss category.
1993 Clinical otosclerosis and auditory exostoses in ancient Europeans (investigation of Lithuanian paleoosteological samples).