Table. Clinical and Neuro-Otologic Findings in the Patients

Table. Clinical and neuro-otologic findings in the patients

Pt Age/Sex Lesion INO SN GEN EOM Convergence OTR SVV Stroke Other limitati mechanism neurological on findings other than INO Side brainstem Limb Trunca H V H S O l T D T 1 57/M R Mid, rostral R C S Dissoci - - Depression Normal - - - C SAD Sensory pontine ated (OD) change torsion al- vertical 2 75/M R Rostral R C - - - - Normal Normal I I I I SAD Sensory pontine change 3 81/M R Rostral R B - Dissoci - - Normal Impaired C C C C SAD - pontine ated torsion al- vertical 4 61/M L Rostral L B M (C) Dissoci - - Normal Normal C C C C SAD - pontine ated torsion al- vertical 5 85/M L Rostral L B M (I) - - - Normal Normal C - C C SAD Facial palsy pontine 6 62/F R Rostral B C - - - - Normal Normal C - - C SAD - pontine 7 70/M L Rostral B B S - + + Normal Normal C C C C SAD Dysarthria, pontine facial palsy, sensory change 8 53/M R Rostral R B M (C) - - - One-and-a- Impaired C - C C SAD - pontine, half caudal syndrome midbrain (H/V) 9 49/M B Rostral B B S - - - Elevation, Impaired R R - - CE Dysarthria, pontine, abduction dysphagia, caudal (OU) tinnitus midbrain

10 86/M B Caudal B R S - - - Elevation Impaired - - R - CE - midbrain (OU), One- and-a-half syndrome 11 63/M L Caudal L I M (I) - - - Normal Normal C - C C SAD Dysarthria midbrain 12 66/F R Caudal L I S - - - Normal Normal C C C C SAD Dysarthria, midbrain facial palsy 13 68/F R Rostral R C M (C) - - + Elevation, Impaired C C C C SAD - midbrain depression (OD) 14 81/F L Mid pontine L - M (C) - - - One-and-a- Normal C C C - SAD - half syndrome 15 83/M R Rostral R - M (C) Dissoci - - Normal Impaired C C C C SAD - pontine ated torsion al- vertical 16 63/M R Rostral R - M (C) Lt - - Normal Normal C - C C SAD Sensory pontine change 17 71/M R Rostral R - M (C) Rt + + Normal Impaired C - C C SAD - pontine 18 40/F R Rostral R - M (C) Dissoci - - Normal Normal C C C C CE - pontine ated torsion al- vertical 19 74/M L Rostral L - M (C) Rt - - One-and-a- Impaired C - C C LAD Dysarthria pontine half syndrome 20 63/M R Rostral R - M (C) - - - Normal Impaired - - - - SAD - pontine 21 76/F R Rostral R - S CW - - Normal Normal C C C C SAD - pontine 22 60/F L Rostral L - S - - - Normal Normal C - C C SAD - pontine 23 70/M L Rostral L - S - + + Normal Normal C C C C SAD - pontine 24 69/F B Rostral B - S Dissoci + + Normal Normal L L L L SAD - pontine ated torsion al- vertical 25 59/M R Rostral R - M (C) Dissoci - - Elevation Impaired C C C C SAD - pontine, ated (OU) caudal torsion midbrain al- vertical 26 79/M B Rostral B - S - + + Elevation Impaired - - - R CE Dysarthria pontine, (OU) caudal midbrain 27 49/F L Caudal L - M (C) Dissoci + - Normal Normal C C C C SAD - midbrain ated torsion al- vertical 28 60/M L Caudal L - M (C) D + - Normal Normal C C C C SAD - midbrain 29 53/M L Caudal L - M (C) D + - Normal Normal C C C C CE - midbrain 30 62/M L Mid midbrain L - M (C) - + - Normal Impaired - - - C SAD Facial palsy B indicates bilateral; C, contralateral; CE, cardioembolic; CW, clockwise; D, downbeat; EOM, extraocular muscle; GEN, gaze-evoked nystagmus; H, horizontal; HT, head tilt; INO, internuclear ophthalmoplegia; L, left; LAD, large artery disease; Lt, left-beating; M, mild ataxia; OD, right eye; OS, left eye; OT, ocular torsion; OTR, ocular tilt reaction; OU, both eyes; R, right; Rt, right-beating; S, severe ataxia; SAD, small vessel disease; SD, skew deviation; SN, spontaneous nystagmus; SVV, subjective visual vertical; V, vertical.