| Clinical Application and Update of Video Head Impulse Test |
| Jung Yup Lee, Jin Su Park, Min-Beom Kim |
| Department of Otolaryngology-Head and Neck Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea |
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Received: August 10, 2018; Accepted: September 1, 2018. Published online: September 1, 2018. |
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| ABSTRACT |
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Recently with the introduction of Video Head Impulse Test (vHIT), it can be easily performed quantitative and objective measurement of vestibule-ocular reflex (VOR). vHIT has been used as a clinical vestibular function test that can individually evaluate the function of each semicircular canal. Loss of VOR gain and corrective catch-up saccades that occur during the vHIT usually indicate peripheral vestibular hypofunction, whereas in acute vestibular syndrome, normal vHIT should prompt a search for a central lesion. In this study, we will examine the principle of vHIT and its interpretation, and explain its clinical application in peripheral and central vestibulopathy. In addition, we will compare the caloric test and the differences, and review the most recently introduced Suppression Head Impulse Paradigm (SHIMP) test. |
| Keywords:
Video head impulse test; Vestibulo-Ocular Reflex; Semicircular Canals; Vestibulopathy |
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