Horizontal canalith jam: Review and two cases report
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Keywords
benign paroxysmal positional vertigo, bppv, vertigo, canalith jam, nystagmus
Abstract
Benign paroxysmal positional vertigo (BPPV) is an episodic vestibular syndrome (EVS) that is recognized for being the most frequent disorder observed in the clinic, with good and prompt resolution in the vast majority of cases. However, very unusual or atypical variants can occur, where the canalith jam is one of the forms most resistant to treatment by means of repositioning maneuvers, and for the same reason, the adequate recognition of this condition is essential for its correct approach. Two cases of BPPV with canalith jam in the horizontal semicircular canal and five diagnostic criteria for its identification are presented.