27 dizziness Flashcards
what is “BPPV”
Benign paroxysmal positional vertigo
describe Benign paroxysmal positional vertigo
Commonest cause of paroxysmal vertigo
Occurs at all ages, increasingly common in older age
Believed to result from small particles of otoconia dislodged from utricular maculae and trapped in semi-circular canals
Brief paroxysms of vertigo and nausea/vomiting induced by head movements
Vertigo settles with complete stillness
Nystagmus accompanies vertigo
What manoeuvre can diagnose benign paroxysmal positional vertigo and what can treat it
Dix-Hallpike manoeuvre usually diagnostic
Epley manoeuvre (and similar) usually effective in treating
Typically occurs over a period of weeks, often recurrent
what is Meniere’s disease
Uncommon cause of dizziness in the elderly
Classical triad of vertigo, tinnitus and sensorineural hearing loss
Vertigo typically in episodes of 20 minutes – 12 hours
Vertigo worsened but not precipitated by head movements
Usually a feeling of fullness in the ear
Cause believed to be increased volume and pressure of endolymph
Treatment symptomatic
what is “HINTS” for?
head impulse, nystagmus and test of skew (HINTS) examination
what is Dix-Hallpike manoeuvre for
what is vertigo
Vertigo specifically describes the sensation of illusory movement
If a patient has vertigo what do you need to figure out?
Determining whether vertigo is of peripheral or central origin is critical.