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Dix-Hallpike test |
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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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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. Positional vertigo and nystagmus demonstrated on the Dix-Hallpike test that does not fit the characteristics of BPPV raises the suspicion of other diseases. |
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