Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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! # Ola via Alexandros G.Sfakianakis on Inoreader

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Τετάρτη 26 Σεπτεμβρίου 2018

The Video Head Impulse Test: Our Experience in 45 Cases

Abstract

To evaluate the role of video head impulse test in the diagnosis of peripheral vestibular disorders, we performed an observational study in the outpatient department in a tertiary setup in which the clinical head impulse test and the video head impulse test were performed on 45 patients with clinically suspected peripheral vestibular disorders, and their results were correlated. To analyse our results, each ear was counted individually and hence, among 45 patients, 12 out of 90 ears showed abnormal clinical head impulse test for lateral semicircular canals and 27 out of 90 ears showed abnormal video head impulse test for lateral semicircular canals. This gave us an additional diagnostic accuracy of 21.1% on using video head impulse test for the lateral semicircular canals as compared to the clinical head impulse test. Video head impulse test is a physiological, quick and well tolerated test for assessing the vestibular function, and the only practical test for assessing the vertical semicircular canal function. Video head impulse test provides valuable information in localising the site of lesion as it assesses the semicircular canals individually. Video head impulse is merely not an objectification and registration system for the clinical head impulse test as it provides additional information such as vestibulo–ocular reflex gain, and occurrence of covert refixation saccades which cannot be picked up by naked eyes.



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