Which tests are performed in the workup of benign paroxysmal positional vertigo (BPPV)?

Updated: Feb 15, 2018
  • Author: John C Li, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

See the list below:

  • The Dix-Hallpike maneuver is the standard clinical test for BPPV (see Physical).

  • Electronystagmography

    • Torsional eye movement cannot be demonstrated directly, but occasionally electronystagmography (ENG) is helpful in detecting the presence and timing of nystagmus.

    • Caloric test results can be normal or hypofunctional.

    • According to Mohammed Hamid, MD, a reduced vestibular response can occur secondary to the sluggishness of the particle-laden endolymph.

    • BPPV can originate in an ear with an absent caloric response because the nervous and vascular supply to the horizontal canal is separate from that of the PSCs.

  • Infrared nystagmography: Torsional eye movement can be demonstrated directly.

  • Audiogram: The result of an audiogram may be normal.

  • Posturography: Posturography results are often abnormal but follow no predictable or diagnostic pattern.


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