Conductive HL Flashcards
What is a cholesteatoma and how does it present?
When skin (stratified squamous epithelium) growing into middle ear.
CHL
Otalgia
headache
Foul smelling cheesy discharge
Rx = siurgical removal
Rinne and Weber’s signs of conductive HL?
Rinne’s negative
Webers localises to side of loss
Audiogram = air bone gap
How is otosclerosis inherited?
Autosomal dominant
How does otosclerosis present?
CHL that is often better with background noise
Usually presents in early adult life and is made worse by pregnancy.
What does otosclerosis show on audiogram
Carharts notch at 2000Hz.
What is the carharts notch?
When the air bone gap narrows ast 2000Hz.
Management of otosclerosis?
Hearing aid, surgical replacement of stapes, Cochlear implant.
What is otitis media with effusion?
Inflammation of the middle ear in the absence of infection.
Development is thought to be associated with Eustachian tube dysfunction.
What is unilateral OME in an adult suggestive of?
A nasopharyngeal cancer.
How does OME present?
Deafness, speech delay, behavioural problems, poor school performance.
Cinvestiugastion of OME, what does the tympanic membrane look like?
Conductive HL, Flat, type B tympanogram.
When do you refer OME?
Majority resolve within 3 months.
Refer if >3/12, bilateral, significant HL or impact on behaviour?
Surgical management of OME?
<3 yrs = grommets.
> 3 years = 1) Grommets
2) Grommets + adenoidectomy.
