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What is Cochlear Otosclerosis, and Will Medication Help?

George Cire, AuD

May 5, 2008


Question

I recently came across an article discussing a person with the diagnosis of Cochlear Otosclerosis? Exactly what does the diagnosis of Cochlear Otosclerosis entail? I am assuming a person must have Otosclerosis of the middle ear first in order to get Cochlear otosclerosis? Also I realize it causes SNHL, but what sort of damage does it do to the Inner ear? Some sources mention it causes permanent SNHL but that some medications may be prescribed to prevent further damage. From the House Ear Institute website, it states "in selected cases medication may be prescribed in an attempt to prevent further nerve impairment." What kind of medications are prescribed?

Answer

Yes you are correct, a person must have Otosclerosis of the middle ear first. Cochlear otosclerosis usually occurs in long standing case of otosclerotic fixation of the stapes where the disease process invades the otic capsule. This will begin and usually is contained in the basal turn of the cochlea. The otosclerosis process usually causes a conductive loss. As the disease invades the otic capsule a concomitant sensorineural loss will appear. Radiographic studies (High resolution CT scan) may sometimes reveal the otosclerotic lesion. In the demineralizing or spongiotic stage, normally sharp outline of the capsule becomes interrupted and can disappear. There are reports of otosclerotic invasion of the semicircular canals where dizziness may be a symptom as well.

Treatment for cochlear otosclerosis can include a sodium fluoride regimen. This is used as an attempt to retard or prevent further sensorineural hearing loss. This treatment is not considered a cure but a management technique.

George Cire is the Clinical Manager for Bone Anchored Solutions at Cochlear Americas in Englewood, CO. Dr. Cire received his Au.D from A. T . Still University, School of Health Sciences in Mesa, AZ. Dr. Cire has been working in the Audiology field for 29 years.


george cire

George Cire, AuD

Clinical Manager, Bone Anchored Solutions, Cochlear Americas

George Cire currently works as Clinical Manager of Bone Anchored Solutions for Cochlear Americas in Englewood, Colorado.  Prior to joining Cochlear, Dr. Cire has worked as a field specialist for Phonak Hearing Systems and has been a practicing Audiologist for 30 years.  He has worked both in stand-alone private practice and as the director of an ENT affiliated Audiology Practice.  His specialty interests are in the areas of clinical verification of amplification and vestibular diagnostics and treatment.  Dr. Cire received his BA degree from Louisiana Tech University in Ruston, LA, M.C.D. (Master of Communicative Disorders) from Louisiana State University Health Sciences Center, New Orleans, LA and Au.D. from A. T. Still University, Arizona School of Health Sciences in Mesa, AZ.


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