Exam Preview for 41670: Bascule Maneuver for the Management of Atyp

Bascule Maneuver for the Management of Atypical Posterior Canal BPPV

Please note: exam questions are subject to change.

1. Which of the following findings is most suggestive of an apogeotropic posterior canal BPPV rather than a typical posterior canal BPPV? Torsional upbeat nystagmus during the Dix–Hallpike test Apogeotropic torsional nystagmus due to otoconia settling in nondependent canal segments Downbeat nystagmus during head-hanging No positional nystagmus observed
2. A persistent sitting-up vertigo accompanied by positional nystagmus is most commonly associated with which of the following? Horizontal canal geotropic BPPV Superior canal BPPV Posterior canal canalith jam Migraine-related dizziness
3. What is the primary therapeutic goal of the Bascule maneuver? To stimulate central vestibular pathways To apply an impulsive rotation along the affected posterior canal plane to mobilize otoconia in atypical variants To replicate the Epley maneuver with higher rotational velocity To improve utricular sensitivity
4. Compared to Brandt–Daroff exercises, the Bascule maneuver differs primarily because it: Utilizes prolonged static head positions Is intended only for horizontal canal disorders Applies a targeted impulsive movement designed specifically for stenotic or atypical posterior canal tracts Requires no clinician guidance
5. In which clinical scenario is the Bascule maneuver particularly useful for clarifying diagnosis? Typical posterior canal BPPV responding immediately to Epley Positional vertigo due to orthostatic hypotension Atypical nystagmus patterns where converting the case into a “typical” BPPV helps localize otoconia Chronic subjective dizziness