Otosclerosis

Question 1

define otosclerosis

Answer 1

GENETIC -new spongy bone formed aroud stapes footplate-

Question 2

basic pathophy of calcificatoin in otosclerosis

Answer 2

Calcification leads to fixation and progressive conductive hearing loss

disease provess may also enter cochlea directly causing a high frequency sensinoneural hearing loss

Question 3

inhertiance pattern of otoscleroisis

Answer 3

autosomal dominant with incomplete penetrance

-85% bilateral
-F:M 2:1

Question 4

when does otosclerosis present 2

Answer 4

early adult life

accelerated by pregnancy

Question 5

symptoms of otoscelroisis 3

Answer 5

conductive deafness

tinnitus

mild transient vertigo

Question 6

sign of otoscelrosis 1

Answer 6

Schwartze sign- falmingo pink blush seen through posterior superior segement of drum showing active disease in middle ear space around ossicles

Question 7

treatment for otosclerosis 3

Answer 7

no treatment

hearing aid

if hearing aid fails surgery

cochlear implants

Question 8

types of surgery for otosclerosis

Answer 8

stapedectomy or stapedotomy to replace fixed stapes

-surgery can cause total hearing loss so careful

• only perfromed on the worse hearing ear