BPPV (Benign Paroxysmal Positional Vertigo) occurs as a result of displaced otoconia, which are small crystals of calcium carbonate (also referred to as “otoliths” or “canaliths”) that are normally attached to the otolithic membrane in the utricle of the inner ear. Reasons of incidence range from trauma, infection, or even simple aging, canaliths can detach from the utricle and collect within the semicircular canals causing “spinning” or vertigo.
The goal of the canalith repositioning procedure (CRP), a form of vestibular rehabilitation therapy, is to move the displaced canaliths to stop these false signals and the debilitating symptoms they can cause.
These maneuvers involve a series of specifically patterned head and trunk movements performed by a trained professional who closely watches eye movements with each position change. CRP is very effective, with an approximate cure rate of 80%. The recurrence rate for BPPV after these maneuvers is low. However, in some instances additional treatment(s) may be necessary.