Causes of Sensorineural Hearing Loss

Question 1

what are some of the causes associated with sensorineural hearing loss

Answer 1

presbycusis, trauma, vestibular shwannoma, drug-induced hearing loss, noise-induced hearing loss

Question 2

describe what presbycusis is

Answer 2

progressive, bilateral, symmetrical hearing loss that is usually for high frequencies at first
(has highly variable onset)

Question 3

what is presbycusis associated with

Answer 3

ageing

Question 4

what is classicly seen with noised induced hearing loss on audiometry

Answer 4

classical dip at 4kHz

Question 5

what are some drugs well known to cause drug-induced hearing loss

Answer 5

gentamicin(and other aminoglycides), chemotherapeutic drugs, aspirin or NSAID overdose

Question 6

describe what a vestibular shwannoma is

Answer 6

benign tumour arising in the Internal Acoustic Meatus

Question 7

what does a vestibular schwannoma present with

Answer 7

hearing loss, tinnitus, imbalance

Question 8

how is vestibular schwannoma diagnosed

Answer 8

with MRI scan

Question 9

what types of trauma can cause sensorineural hearing loss

Answer 9

direct trauma to the ear or head injuries

Question 10

what clinical features can be associated with skull fractures

Answer 10

hearing loss(conductive or sensorineural), facial palsy, CSF leak