v-HIT horizontal canal gains and saccade prevalence by final diagnosis
| Vestibular neuritis n=53 Mean (SD) | Posterior circulation stroke n=20 Mean (SD) | Migraine n=21 Mean (SD) | P value | |
| VOR Gain | ||||
| Horizontal Canal (0.8)* | 0.56 (0.29) | 0.88 (0.28) | 1.00 (0.18) | <0.001 |
| Catchup Saccades† | 51 (96%) | 5 (20%) | 0 | <0.001 |
*Lower limit of normal value.
†Catchup saccades identified visually on v-HIT testing Comprehensive canal details can be found in online supplemental file 1.
v-HIT, video head impulse test; VOR, vestibular-ocular-reflex.