Review Article

Diagnosis of Single- or Multiple-Canal Benign Paroxysmal Positional Vertigo according to the Type of Nystagmus

Figure 5

Stimulation of the left anterior semicircular canal during the right Dix-Hallpike maneuver (c). On (a,b), the semicircular canals of the left and right ears, respectively, are shown. When otoconia is present in the contralateral (left) anterior canal (a), the affected anterior canal is stimulated due to the movement of endolymph that takes place in its rotation plane, inducing BPPV.
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(a)
483965.fig.005b
(b)
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(c)