Benign paroxysmal positional vertigo overview
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Fahimeh Shojaei, M.D.
Overview
Historical Perspective
BPPV was first dicribed by Adler and Barany, who described it as a problem in the otolith organs. In 1952, Margaret Dix and Charles Hallpike named it positional nystagmus of the benign positional type. They noted nystagmus and vertigo with different headmovements. Hallpike also defined it as a peripheral problem rather than central (brain) problem. In 1962 Harold Schuknecht described theory of detached utricular otoconia (cupulolithiasis). Hall et al and Epley described the theory of free floating particle (canalithiasis). The first treatment strategy suggested for BPPV treatment was cawthorne's exercise (repeatitive head movement which cause vertigo in order to reach central adaption). The newest treatment strategy is to perform Dix Hallpike test to diagnos and induce the vertigo and then performing CRP (Epley) maneuver.
Classification
Benign paroxysmal positional vertigo may be classified according to which semicircular canal the otoconia have migrated to into 3 subtypes including posterior semicircular canal BPPV, lateral semicircular canal BPPV, and superior (anterior) semicircular canal BPPV.