Benign paroxysmal positional vertigo Flashcards
1
Q
BBPV
A
Peripheral cause of vertigo (problem located in the ear rather than in the brain)
2
Q
Features
A
Vertigo triggered by change in head position
May be associated with nausea
Lasts 10-20 seconds
NO hearing loss or tinitus
3
Q
Pathophysiology
A
Calcium carbonate crystals (otoconia) become displaced into the semicircular canals
Most often in the posterior semicircular canal
Disrupt the flow of endolymph through the canals, confusing the vestibular system
4
Q
Dix-Hallpike Manoeuvre
A
Moves patient so that endolymph moves through semicircular canals and triggers vertigo in patients with BPPV
Make sure they have no neck pain or pathology before
5
Q
Epley manoeuvre
A
Used to treat BPPV
Moves crystals in the semicircular canals into position that does not disrupt enolymph flow
