Flashcards in Hearing Loss and Tinnitus Deck (23):
What is presbyacusis?
Age-related hearing loss due to accumulation of environmental noise toxicity
Which frequency of sound is lost first in presbyacusis?
What is the treatment for presbyacusis?
What decibel range is 'normal' on pure tone audiometry?
At what decibel of hearing might you consider grommets in a child?
At what decibel of hearing might you consider cochlear implants in an adult?
What might be the findings on audiometry and tympanometry in a patient with perforation of the tympanic membrane?
Audiometry = Conductive hearing loss
Tympanometry = No movement of the tympanic membrane i.e. appears flat
List some drugs which might cause sensorineural hearing loss
Streptomycin, vancomycin, gentamicin, vinca alkaloids, chloroquine, hydroxychloroquine
What diagnosis should you think of when there is unilateral sensorineural hearing loss?
Which is more common, sensorineural or conductive hearing loss?
What does a flat line on tympanometry suggest?
Fluid in the middle ear
What is the inheritance pattern of otosclerosis?
What are the symptoms of otosclerosis?
Conductive hearing loss
'Flamingo tinge' to the ear drum due to hyperaemia
'Cahart's notch' on audiometry - a dip at 2kHz
What is the (probable!) underlying pathology in Meniere's disease?
Dilatation of the chambers which carry endolymph in the membranous labyrinth
What is the characteristic triad of Meniere's disease?
Bilateral sensorineural hearing loss
Where might you expect the pathology to be if a patient complains of tinnitus which is ringing, hissing or buzzing?
Inner ear or central
Where might you expect the pathology to be if a patient complains of tinnitus which involves popping or clicking sounds?
Middle or external ear, or palate
What pathology might you expect if a patient complains of tinnitus which is pulsatile?
Benign intracranial hypertension
What diagnosis must be excluded in unilateral tinnitus?
Typically how long does the dizziness last in benign paroxysmal positional vertigo?
Less than 1 minute, usually 10-20 seconds
If both bone and air conduction are affected on audiogram, what is the likely problem?
Sensorineural hearing loss
What will an audiogram show in conductive hearing loss?
Bone conduction is better than air conduction