Ear-otosclerosis Flashcards
Otosclerosis also known as
Otospongiosis
What is otosclerosis
The fixation of foot plate of stapes
Aggravating factor in otosclerosis
Pregnancy,Menopause,trauma ,hereditary, infection like measles
Otosclerosis is more common in male or female in the world
Female (2nd and 3rd decade)
Cookie bite appearance seen in
Otosclerosis
The most common site of origin in otosclerosis
Point anterior To oval window
What kind of hearing loss and cochlear otosclerosis
Mixed type of hearing loss
Type of hearing loss in normal otosclerosis
CHL
What is Paracusis Willisi and What is it a feature of
The patient hears better in noisy area (property of conductive hearing loss)
Otosclerosis
Features of otoSclerosis
Paracusis willisi
Patient has low tone voice and soft speech
Tinnitus
What is Schwartz sign and where is it seen
It is a flamingo pink appearance behind tympanic membrane
It is seen in otosclerosis In 10% patients
Surgery for otosclerosis
Stapedotomy or stapedectomy
Steps of stapedectomy/stapedotomy
- Rosen endomeatal incision
- remove the head of the stapes
- make a hole in the foot plate of stapes
- No place stapes piston prosthesis
Use of sodium fluoride in otosclerosis
Stabilisation of disease in some cases
NaF is contraindicated
Pregnancy
Lactation
Chronic nephritis
Chronic rheumatoid arthritis
Types of otosclerosis
- anterior foci(Most common) – play and defence Trump
- Posterior foci
- Circumferential
- Biscuit
- Obliterated
Differential diagnosis of otosclerosis
Fixed malleus syndrome Secretary otitis media Congenital fixation of stapes footplate Ossicular discontinuity Tympanosclerosis
Gelle’s test
Air pressure in external auditory meatus by seigel’s speculum leading to increased stiffness of ossicular chain
Van der hoeve syndrome triad
Osteogenesis imperfecta
Blue sclera
Otosclerosis
Carrhats notch and where is it seem
Dip in 2K in PTA
