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Related Experiment Video

Updated: Dec 26, 2025

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Testing of all Six Semicircular Canals with Video Head Impulse Test Systems

Published on: April 18, 2019

Video head impulse test in vestibular migraine.

Márcio Cavalcante Salmito¹, Fernando Freitas Ganança¹

¹Universidade Federal de São Paulo (UNIFESP), São Paulo, SP, Brazil.

Brazilian Journal of Otorhinolaryngology

|March 12, 2020

Summary

Vestibular migraine patients show normal vestibular function on the video-head impulse test during symptom-free periods. However, they exhibit higher gain in vertical canals and report increased dizziness.

Keywords:

Dizziness Head impulse test Migraine disorders Vertigo Vestibular function tests

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Published on: March 3, 2023

Area of Science:

Neurology
Ophthalmology
Vestibular System Research

Background:

Vestibular migraine, described in 1999, lacks established pathophysiology.
Advancements in vestibular function assessment, such as the video-head impulse test (vHIT), aid research.
vHIT measures vestibular-ocular reflex gain to evaluate vestibular function.

Purpose of the Study:

To assess vestibular function in vestibular migraine patients using the vHIT.
To compare vHIT findings between vestibular migraine patients and healthy controls.

Main Methods:

A cross-sectional case-control study design was employed.
Participants included vestibular migraine patients meeting Barany Society/International Headache Society criteria.
The video-head impulse test was administered during the interictal period.

Main Results:

31 vestibular migraine patients (90.3% female, mean age 41) were evaluated.
Overall vestibular function appeared normal in both groups.
Higher gain values were observed in vertical semicircular canals of vestibular migraine patients (p<0.05).
Vestibular migraine patients reported significantly more dizziness during the vHIT (p<0.001).

Conclusions:

Vestibular migraine patients exhibit normal vestibular function on vHIT between attacks.
Elevated gain in vertical canals is a notable finding in vestibular migraine.
Increased dizziness perception during vHIT is characteristic of vestibular migraine.