Normative Data on Angular Vestibulo-Ocular Responses in the Yaw Axis Measured Using the Video Head Impulse Test

Matiñó-Soler, Eusebi; Esteller, Manel; Martín‐Sánchez, Juan Carlos; Martinez-Sanchez, Jose-M.; Pérez-Fernández, Nicolas

doi:10.1097/mao.0000000000000661

Cited by 146 publications

(186 citation statements)

References 23 publications

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“…With increasing age between 71 and 91 years, the VOR gain reduction was found at lower velocity vHIT. At 91 years and above, the gain was significantly reduced for any [24]. This can be explained by loss of hair cells and vestibular nerve fibers that occur with increasing age [25], which can be named as presbyvestibulis.…”

Section: Discussionmentioning

confidence: 99%

Video head impulse test: a review of the literature

Alhabib

Saliba

2016

Eur Arch Otorhinolaryngol

144

110

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Video head impulse test (vHIT) is a new testing which able to identify the overt and covert saccades and study the gain of vestibulo-ocular reflex (VOR) of each semicircular canal. The aim of this study is to review the clinical use of vHIT in patients with vestibular disorders in different diseases. PubMed and Cochrane databases were searched for all articles that defined vHIT, compared vHIT with another clinical test, and studied the efficacy of vHIT as diagnostic tools with vestibular disease. 37 articles about vHIT were reviewed. All articles studied the vHIT in English and French languages up to May 2015 were included in the review. Editorial articles or short comments, conference abstracts, animal studies, and language restriction were excluded from the review. Four systems were used in the literature to do the vHIT. vHIT is physiological quick test, which studied the VOR at high frequency of each semicircular canal by calculating the duration ratio between the head impulse and gaze deviation. vHIT is more sensitive than clinical head impulse test (cHIT), especially in patient with isolated covert saccades. vHIT test is diagnostic of vestibular weakness by gain reduction and the appearance of overt and covert saccades. If the vHIT is normal, then caloric test is mandatory to rule out a peripheral origin of vertigo. It is recommended to test each semicircular canal, as isolated vertical canal weakness was identified in the literature. More investigation would be required to determine the evolution of the VOR gain with the progression of the vestibular disease.

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Section: Discussionmentioning

confidence: 99%

Video head impulse test: a review of the literature

Alhabib

Saliba

2016

Eur Arch Otorhinolaryngol

144

110

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“…Apart from velocity, we were interested in constancy, which means that they were found throughout the testing, as when performing impulses to one or the other side, and in at least 80% of the impulses registered. It must be stressed that overt saccades are frequently seen in normal subjects in particular if they are >71 years old and are dependent of the head impulse velocity [17] . For this reason it is desirable to perform a detailed assessment of ocular motility before the vHIT in order to analyze physiological saccades, saccadic intrusions and of spontaneous nystagmus.…”

Section: Discussionmentioning

confidence: 99%

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

Pérez-Fernández

Eza-Nuñez²

2015

Int Adv Otol

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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.

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“…The cut-off values are about 0.8 for horizontal and 0.6 for vertical vHIT. These values might decrease with an increasing age in some but not all studies and depending on the type of measuring device used [35][36][37][38][39][40]. RFS might occur during the head impulse or after the end of the head impulse and are referred to as covert and overt RFS [29].…”

Section: Video-head-impulse Test (Vhit)mentioning

confidence: 99%

Testing of the Semicircular Canal Function in Vertigo and Dizziness

Rambold¹

2017

Up to Date on Meniere's Disease

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Testing the function of the semicircular canals (SCC) in vertigo and dizziness is an important step towards a diagnosis. There are different vestibular tests available: rotatory testing, bithermal caloric irrigation (CI) and the video-head-impulse test (vHIT). This chapter describes the basic methods, the current knowledge and economic aspects focused on the vHIT and CI. After a general section, common vertigo diseases are discussed with respect to the functional tests. From this chapter, it is clear that not only one method has to be applied to test vestibular function but a battery including the CI and the vHIT in three dimensions.

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Normative Data on Angular Vestibulo-Ocular Responses in the Yaw Axis Measured Using the Video Head Impulse Test

Cited by 146 publications

References 23 publications

Video head impulse test: a review of the literature

Video head impulse test: a review of the literature

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

Testing of the Semicircular Canal Function in Vertigo and Dizziness

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