SNHL

Question 1

What is SNHL?

Answer 1

Deafness due to failure of the hair cells to detect sounds in the inner ear.

Question 2

Hearing is worse when with SNHL?

Answer 2

Worse in the presence of backghroiund noise?

Question 3

What do Renne and Webers show in SNHL?

Answer 3

Rinne’s positive.
Webers goes to ear where there is not a problem (other ear)

Audiomertyr, no air bone gap, symmetrical high frequency loss.

Question 4

Mainstay of treatment of sensorineural HL?

Answer 4

Hearing aids.

Question 5

What is presbycusis?

Answer 5

Gradual reduction in hearing with age.

Particular difficulties with background noise.

Question 6

What is a vestibular schwannoma?

Answer 6

Benign nerve sheath tumour of CN 8 that grows at the cerebello pontine angle.

Question 7

What would bilateral vestibular schwannomas siuggest?

Answer 7

Neurofibromatosis type 2.

Question 8

How does a vestibular schwaannoma present/

Answer 8

SNHL with distortion of sound and tinnitus.

Unsteadiness, vertigo and deep earache,

Facial pain, palsy or parasethaia,

UNilateral headache,

Investigation is CT head.

Question 9

What type of hearing loss does head injury cause?

Answer 9

Can cause a mixed hearing loss.