Benign paroxysmal positional vertigo (BPPV)

Posted by e-Medical PPT Monday, October 11, 2010
Benign paroxysmal positional vertigo (BPPV) is a disorder caused by problems in the inner ear. Within the labyrinth of the inner ear lie collections of calcium crystals known as otoconia. In patients with BPPV, the otoconia are dislodged from their usual position within the utricle and they migrate over time into one of the semicircular canals.When the head is reoriented relative to gravity, the gravity-dependent movement of the heavier otoconial debris within the affected semicircular canal causes abnormal fluid endolymph displacement and a resultant sensation of vertigo.
The condition is diagnosed from patient history (feeling of vertigo with sudden changes in positions) and by performing the Dix-Hallpike maneuver which is diagnostic for the condition. Two treatments have been found effective for relieving symptoms of posterior canal BPPV: the canalith repositioning procedure (CRP) or Epley maneuver, and the liberatory or Semont maneuver.Medical treatment with anti-vertigo medications may be considered in acute, severe exacerbation of BPPV, but in most cases are not indicated.

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