vestibular neuronitis

Question 1

what

Answer 1

inflammation of the vestibular nerve

Question 2

vestibule

Answer 2

semicircular canals
otolith organs - urticle + saccule

detect head movement

Question 3

what do semicircular canals detect

Answer 3

head rotation

Question 4

what do otolith organs detect

Answer 4

gravity

linear acceleration

Question 5

what can trigger vestibular neuronitis

Answer 5

viral infection

Question 6

features

Answer 6

acute onset vertig o
Hx recent viral UTRI
N&V
balance problems

Question 7

vestibular neuronitis vs labrynthitis

Answer 7

labrynthitis = hearing loss

neuronitis = no hearing lsoss

Question 8

head impulse test results

Answer 8

eyes saccade if peripheral vertigo

normal result if peripheral vertigo but no current symptoms, or central vertigo

Question 9

Mx

Answer 9

admission if dehydration due to N&V

symptomatic Rx 3 days

• prochlorperazine
• antihistamines - cyclizine, promethazine

Question 10

when to consider further investigation or vestibular rehabilitation therapy

Answer 10

symptoms don’t improve after a week

symptoms dont resolve after 6wks

Question 11

prognosis

Answer 11

symptoms most severe first few days, will gradually resolve following 2-6wks

BPPV may develop after vestibular neuronitis