Table 2.
Results of vestibular function tests according to the drug treatment responses.
| Vestibular function test | No medication required at 6-month FU, n (%) | Medication required at 6-month FU, n (%) | p-value |
|---|---|---|---|
| Caloric test | |||
| Normal (n = 59) | 48 (81%) | 11 (19%) | 0.014 |
| Abnormal (n = 14) | 7 (50%) | 7 (50%) | |
| vHIT gain | |||
| Normal (n = 72) | 59 (82%) | 13 (18%) | 0.011 |
| Abnormal (n = 9) | 4 (44%) | 5 (56%) | |
| CS amplitudes in vHIT | |||
| Normal (n = 72) | 58 (80.6%) | 14 (19.4%) | 0.089 |
| Abnormal (n = 9) | 5 (55.6%) | 4 (44.4%) | |
| Vestibular ratio in SOT | |||
| Normal (n = 40) | 30 (75%) | 10 (25%) | 0.539 |
| Abnormal (n = 25) | 17 (68%) | 8 (32%) | |
| cVEMP | |||
| Normal (n = 67) | 50 (74.6%) | 17 (25.4%) | 0.420 |
| Abnormal (n = 8) | 7 (87.5%) | 1 (12.5%) | |
| oVEMP | |||
| Normal (n = 55) | 40 (72.7%) | 15 (27.3%) | 0.271 |
| Abnormal (n = 20) | 17 (85%) | 3 (15%) | |
FU, follow-up examination; CS, catch-up saccades; cVEMP, cervical vestibular-evoked myogenic potential; oVEMP, ocular vestibular-evoked myogenic potential; vHIT, video head impulse test; SOT, sensory organization test.