Table 2.
Ocular motor (A) and neurological findings (B) before and after surgical intervention.
| A | B | |||||
|---|---|---|---|---|---|---|
| P | Pathological ocular motor findings | Pathological neurological findings | ||||
| Before | After 1 week | After 3 months | Before | After 1 week | After 3 months | |
| 1 | GEN r > l, PN l, HIT r | SP v and h | SP v and h | Finger-chase dysmetria b, Heel-shin slide dysmetria, dysesthesia in both hands | Finger-chase dysmetria l | Finger-chase dysmetria l |
| 2 | Strabismus sursoadductorius l | md | Unchanged | None | md | None |
| 3 | n | md | n | Finger-chase dysmetria l, Hypaesthesia l hand and arm | md | None |
| 4 | PN l | n | DBN | Atrophy and paresis of the interosseal muscles, finger-nose dysmetria l | Gait ataxia, atrophia and paresis unchanged, finger-nose dysmetria r > l | Improvement of paresis and atrophy of hand muscles, Finger-chase dysmetria l |
| 5 | n | SVV r | n | Unsteady gait, hypesthesia right arm and leg | Unsteady stance, finger-chase dysmetria and diadochokinesis r | Finger-chase dysmetria |
| 6 | OTR r (head tilt, SVV), VFS v | n | n | Intention tremor l | Finger-chase dysmetria l | Hearing impairment l, finger-chase dysmetria l |
| 7 | n | n | SP v | Dysdiadochokinesis r, hypesthesia in both hands, pallhypesthesia | none | Lateral canal BPPV r |
| 8 | GEN h, RN, SP v and h, hypermetric saccades v and h, VFS h > v, HIT l and r, PN l, DBN | GEN h, RN, SP v and h, hypermetric saccades v and h, VFS h > v, PN l | GEN h, RN, SP h and v, hypermetric saccades h, VFS h > v, SVV l | Isolated ocular motor findings | md | Unchanged |
| 9 | n | md | GEN h, RN, SP v | None | md | 4/5 paresis and hyperesthesia of the right upper and lower limb with reduced reflexes, dysdiadochokinesis r |
| 10 | n | SVV r | SP h | Paresis of triceps and interosseal muscles, finger-nose dysmetria l >r, hypesthesia in the fingers | md | Improvement of the paresis and hypesthesia |
P, patient number; r, right; l, left; b, both; h, horizontal; v, vertical; n, none; md, missing data; GEN, Gaze-evoked nystagmus; PN, head-shaking nystagmus; HIT, head impulse test; SP, smooth pursuit; DBN, downbeat nystagmus; SVV, deviation of the subjective visual vertical > 2.5°; OTR, ocular tilt reaction; VFS, visual fixation suppression of the vestibulo-ocular reflex; RN, rebound nystagmus.