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Dix-Hallpike test

   Also found in: Wikipedia 0.01 sec.
Dix-Hallpike test
[hôl′pīk]
a method for evaluating the function of the vestibule of the ear in patients with vertigo or hearing loss. The patient's position is quickly changed from sitting to lying down with the neck hyperextended, and then returned to sitting. Nystagmus can then be evaluated, and specific disorders of the vestibule may be diagnosed. See also caloric test, electronystagmography, nystagmus.


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The criterion for a vestibular anomaly is either an abnormal result on the Dix-Hallpike test or an abnormal result on at least two of the other three tests (rotational chair test, posturography, or ENG/VNG).
The presence of a burst of rotary nystagmus, which is counterclockwise at the right side and clockwise at the left side in the Dix-Hallpike test and subsides within seconds, indicated a typical posterior semicircular canal BPPV.
Five months following her first visit, a Dix-Hallpike test revealed that nystagmus occurred only when her head was down and to the left.
 
 
 
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