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Left-posterior canal benign paroxysmal positional vertigo (BPPV)

Legend: The patient is in the left Dix-Hallpike position, and upbeat and left-torsional nystagmus is present. This pattern is consistent with left-posterior canal BPPV. The patient then sits up and is put in the right Dix-Hallpike position, and downbeat and right torsional nystagmus is present. This pattern is compatible with “unwinding” of left-posterior canal BPPV.

Duration: 2:03

Associated with: CONTINUUM: Lifelong Learning in Neurology. 27(2):330-347, April 2021

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