Table 3.
Vestibular function test results showing abnormal caloric test, abnormal horizontal vHIT, and catch-up saccades during the vHIT in MD, pMD, VM, and pVM patients.
| Diagnosis | MD | pMD | VM | pVM | p-value | |
|---|---|---|---|---|---|---|
| Abnormal horizontal vHITa, n (%) | 29 (15.3%) n = 190 |
10 (10.6%) n = 94 |
7 (7.1%) n = 99 |
8 (4.6%) n = 173 |
0.005b | |
| Catch-up saccadesc, n (%) | Ipsilesional 54 (28.9%) n = 187 |
Contralesional 17 (9.1%) n = 187 |
16 (17.0%) n = 94 |
12 (12.0%) n = 100 |
19 (10.7%) n = 177 |
<0.001d |
| Abnormal caloric teste, n (%) | 118 (66.3%) n = 178 |
50 (54.3%) n = 92 |
26 (28.0%) n = 93 |
27 (16.6%) n = 163 |
<0.001f | |
Gain <0.8 and presence of ipsilateral catch-up saccades.
Post-hoc pairwise comparisons with the Chi-square test revealed significant differences between MD and VM (p = 0.045), and MD and pVM (p < 0.001).
Catch-up saccades during the vHIT for pMD, VM, and pVM patients were labeled as present in case of presence on at least one, but any, side.
p-value given for the comparison of ipsilesional catch-up saccades in MD, compared with any catch-up saccades in VM, pMD and pVM. Post-hoc pairwise comparisons with the Chi-square test revealed significant differences between MD and VM (p = 0.001), MD and pMD (p = 0.030) and MD and pVM (p < 0.001).
UW ≥ 22%.
Post-hoc pairwise comparisons with the Chi-square test revealed significant differences between MD and VM (p < 0.001), MD and pVM (p < 0.001), pMD and VM (p < 0.001), pMD and pVM (p < 0.001), and VM and pVM (p = 0.030).
MD, definite unilateral Menière’s disease; pMD, probable Menière’s disease; VM, definite vestibular migraine; pVM, probable vestibular migraine; n, number of patients; vHIT, video head impulse test.