Posterior semicircular canal benign paroxysmal positional vertigo should be diagnosed and confirmed with a positive Dix-Hallpike test, and only then should a particle repositioning maneuver be performed. If a patient with positional vertigo has a Dix-Hallpike test that is repeatedly negative or results in atypical nystagmus, less common BPPV variants or central positional vertigo should be considered.
Conditions: Posterior semicircular canal benign paroxysmal positional vertigo (BPPV)
Diagnostic Tests: Dix-Hallpike test
Procedures: Particle repositioning maneuvers (Epley or Semont)
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