Unilateral Semicircular Canal Plugging for Intractable Bilateral Posterior Canal Benign Paroxysmal Positional Vertigo: A Case Report

Benign paroxysmal positional vertigo (BPPV) is believed to occur when dislodged otoconia from the utricle migrate into the semicircular canals. The condition resolves spontaneously or with canalith repositioning procedures in most cases. However, a subset of patients exhibits refractory BPPV that does not respond to conservative treatment, in which case, surgical intervention may need to be considered. We report a case in which a favorable clinical outcome was obtained following left posterior semicircular canal plugging performed in a patient who presented with refractory bilateral posterior canal BPPV that developed following a traffic accident.