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J Int Adv Otol. 2015 Aug;11(2):133-7. doi: 10.5152/iao.2015.1087.

Normal Gain of VOR with Refixation Saccades in Patients with Unilateral Vestibulopathy.

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1
Department of Otorhinolaryngology, University of Navarra Faculty of Medicine, Pamplona, Spain. nperezfer@unav.es.

Abstract

OBJECTIVE:

To characterize the response in the video head-impulse test for the assessment of the vestibulo-ocular reflex (VOR) in patients because of vertigo and dizziness.

MATERIALS AND METHODS:

After rightward and leftward head impulses, the following results evaluated were: gain of the reflex and appearance of refixation saccades. A particular type of response (normal gain VOR and refixation saccades) was evaluated in a group of patients.

RESULTS:

In patients with a unilateral abnormality consisting of normal gain and refixation saccades, there was a close concordance with the diseased side and the side to which head impulses elicited the abnormal result.

CONCLUSION:

In the assessment of patients with dizziness, finding a normal gain VOR with refixation saccades indicates the existence of a peripheral vestibulopathy and localizes to the side of the lesion.

PMID:
26381003
DOI:
10.5152/iao.2015.1087
[Indexed for MEDLINE]
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