Abstract
Benign paroxysmal positional vertigo (BPPV) is the most common and the most effectively
treated vestibular disorder. The prevailing pathomechanism is canalolithiasis, which
is otoconia falling in one of the semicircular canals where they move in response
to changes of the head position, triggering excitation of the vestibular receptors
of the affected canal. In the majority of patients with BPPV, the posterior canal
is affected by canalolithiasis and there are two highly effective therapeutic maneuvers
for treatment. About 20% of patients present with lithiasis of the horizontal or anterior
canal. The author focuses on recent advances in diagnosis and treatment of the more
rare variants of BPPV.
Keywords
positional vertigo - paroxysmal vertigo - dizziness - canalolithiasis - cupulolithiasis