OTOSCLEROSIS
❖Otosclerosisor “hardening of the ear” result from
the formation of an abnormal bone growth along
the stapes in the middle ear
❖With the new bone growth , the stapes become
immobile prevents transmission as sound
vibrationinto the ear, leading to conductive
hearing loss
❖Otosclerosisusually affect the both ears
CLASSIFICATION
There are mainly two types of classification:-
➢Histological otosclerosis
➢Clinical otosclerosis
CLASSIFICATION
Histological otosclerosis:-This type of
otosclerosisdoes not produce any
symptoms during life but is revealed only at
postmortem
Clinical otosclerosisThere are threesub types
✓Stapedialotosclerosis
✓Cochlear otosclerosis
✓Mixed otosclerosis
CLASSIFICATION
❖Stapedialotosclerosis:-The otosclerosisfocus
may produce ankylosisof the membraneous
labyrinth
❖Cochlear otosclerosis:-The otoscleroticprocess
proceeds upon the membraneouslabyrinth
producing sensory-neural deafness
❖Mixed otosclerosis:-Otosclerosiscauses both
fixation of the stapes as well as in involvement of
the labyrinthso that is mixed hearing loss
CAUSES
❑Exact cause is not known
❑Heredity: Family history of deafness is present
in 50%of cases
❑Viral infection(Measles etc.)
❑Other ear conditions
CLINICAL
MANIFESTATIONS
➢Hearing loss(progressive deafness which is
painless and is insidious)
➢Dizziness
➢Tinnitus
➢Buzzing in the ear
➢Vertigo
➢Headache & otalgia
DIAGNOSTIC EVALUATION
❖History
❖Physical examination
❖Tuning fork test
❖Audiometrytest
❖Tympanocentesis–send the fluid of middle ear for
culture
❖CT scan –collection of fluid in ear & mastoid
region , abscess formation
❖MRI–evaluation of tumor & soft tissue
❖Audiography–to assess hearing capability
MANAGEMENT
❑Otosclerosismay slowly get worse. The
condition may not require treatment until one
having severe hearing problems
❑Administer analgesics such as –
•IBUPROFEN
•OXYCODONE
•ACETAMENOPHEN (PCM)
❑Hearing aid may be used to treat the hearing
loss
SURGICAL MANAGEMENT
➢Stapedectomy:-The removal of portionof the
sclerotic stepesfootplateof stapes or complete
removal of the stapes and the implant with
prosthesis to maintain suitable conduction.
➢Stapedotomy:-Modern surgery called
stapedotomyis performed by drilling a small hole
in the stapes footplate with micro drill or laser,
and the insertion of a piston like prosthesis
COMPLICATIONS
➢Complete deafness
➢Infection
➢Dizziness
➢Pain
➢Blood clot in the ear after surgery
SELF CARE AT HOME (POST -
OPERATIVE)
➢Take medicine as prescribed
➢Blow nose gently
➢Sneeze and cough with mouth open for few weeks after surgery
➢Avoid heavy lifting, straining and bending
➢Popping and crackling sensation are normal for 3-5 weeks after
surgery
➢Temporary hearing loss is normal in operative ear
➢Change cotton ball in the ear as needed
➢Avoid getting in water for 2 weeks after surgery