Causes of Conductive Hearing Loss Flashcards
describe what otitis externa is
inflammation of skin of ear canal, almost always infective, may be bacterial or fungal
what are some common causes of otitis externa
water, cotton buds, skin conditions(eg dermatitis)
what group of people is acute otitis media seen in most commonly
children
what symptom and other condition is acute otitis media associated with
associated with glue ear
commonly associated with URTIs
what is included in chronic otitis media
otitis media with effusion(ie glue ear), cholesteatoma, perforation
what are some of the causes of conductive hearing loss
otitis externa, otitis media(with/without effusion), cholesteatoma, perforation, otosclerosis
what pathology is otitis media with effusion(glue ear) associated with
Eustachian tube dysfunction or obstruction
what causes of otitis media with effusion(glue ear) must be considered in adults
rhinosinusitis, nasopharyngeal carcinoma, nasopharyngeal lymphoma
describe the conductive hearing loss seen in otitis media with effusion(glue ear)
conductive hearing loss with flat tympanogram, means no air behind the drum(due to effusion)
may be different presentation in young adults(ie speech development problems)
what can cause perforation of the ear drum
commonly due to acute otitis media, may also occur after trauma
describe what cholesteatoma is
presence of keratin within middle ear, erodes surrounding bone
what clinical features are associated with cholesteatoma
conductive hearing loss, discharge, complications
what treatment is generally required for cholesteatoma
surgical excision and reconstruction
what medial complications are associated with otitis media and cholesteatoma
sensorineural hearing loss, tinnitus, vertigo, facial palsy
what superior complications are associated with otitis media and cholesteatoma
brain abscess, meningitis
