2. Otosclerosis
Otosclerosis or “hardening of the ear” result from
the formation of an abnormal spongy bone , like
bone growth along the stapes in the middle ear.
With the new bone growth , the stapes become
immobile prevents transmission as sound
vibration into the ear, leading to conductive
hearing loss.
Otosclerosis usually affect the both ears.
4. Classification
There are mainly two types of classification
1. Histological otosclerosis
2. Clinical otosclerosis
7. 1.stapedial otosclerosis
The otosclerosis focus may produce ankylosis of
the membraneous labyrinth
2.Cochlear otosclerosis
The otosclerotic process encroaches upon the
membraneous labyrinth producing sensoryneural
deafness.
8. 3.Mixed otosclerosis
Otosclerosis causes both fixation of the stapes as
well as in involvement of the labyrinth so that
there are mixed hearing loss.
11. Diagnostic evaluation
History
Physial examination
Tuning fork test
Audiometry test
Tympanocentesis – fluid for middle ear send for
culture
CT scan – collection of fluidin ear & mastoid region ,
abscess formation
MRI – evaluation of tumor & soft tissue
AUDIOGRAPHY – to assess hearing loss
12. Management
Otosclerosis may slowly get worse. The condition
may not require treatment until you having severe
hearing problems.
Medications such as fluoride, calcium, or vitamin
D may help to slow the hearing loss, but the
benefits have not yet been proved.
No known medical treatment exists for this form
of deafness, but amplification with a hearing aid
may be helpful.
13. Administer analgesics such as –
IBUPROFEN
OXYCODONE
ACETAMENOPHEN (PCM)
Hearing aid may be used to treat the hearing loss
General measures :
Avoidance of noise full environment
Side lying position
Continuous applications of medications
High protein diet
14. Surgerical management
stapedectomy.
The removal of portion of the
sclerotic stepes footplate of
stapes or complete removal of the
stapes and the implant with
prosthesis to maintain suitable
conduction.
15. Stapedotomy
Modern surgery called stapedotomy
is performed by drilling a small hole
in the stapes footplate with micro
drill or laser, and the insertion of a
piston like prosthesis.
16. Nursing assessment
History of onset & progression of symptoms
Extend of hearing loss via audiotory
Rinne test – to evaluate loss of air conduction
Webers test-