Head impulse test was positive at both sides, while VHIT
showed absent VOR.
In the English literature, there is only one relevant study that investigated vHIT
parameters in PSCC-BPPV (14).
We used the ICS Impulse version 3.0 vHIT
test system by GN Otometrics of Denmark.
Vestibulo-ocular reflex was evaluated using vHIT
to register and measure the head and eye velocity during head impulse (GN Otometrics, Denmark).
Bartolomeo et al compared the diagnostic value of vHIT
Ulmer; Synapsys; Marseille, France) with that of caloric testing using the receiver-operating characteristic curve.
Two important factors in vHIT
are the normality and the artifact of the dataset.
The head rotation was only done towards the affected ear, while the patient used the vHIT
With the vHIT
we were able to record a very low gain for head impulses towards the affected side with covert and overt refixation saccades as a response to the vestibular deficit and because of the spontaneous nystagmus beating towards the normal ear as well as anticompensatory quick eye movements for head movements towards the nonaffected side (Figure 2).
Main features: acquisition of an audiometry booth and a vhit
ent for nantes university hospitalevery lot is an ordinary market.
To determine the premise, the ICS Impulse version 3.0 vHIT
test system by GN Otometrics of Denmark was employed.
There are no reports of relapses of vestibular neuritis assessed by vHIT
The head impulse test (HIT) and caloric irrigation showed a deficit of the vestibulo-ocular reflex (VOR) on the left side, as confirmed by video HIT (vHIT