Table 1.

Pertinent clinical features of 6 patients with OPT plus dystonia

Patient	Age/Gender	History	Nystagmus	Palate Tremor	Dystonia	Other Movement Disorders	Pharmacotherapy
1	48/F	Resection of deep cerebellar mass	Torsional and vertical nystagmus on slight left gaze, nystagmus increases with further eccentric left gaze, no nystagmus on straight‐ahead gaze	Yes	Torticollis (mild), right hand (mild), both feet (moderate)	Lip tremor, speech tremor	Baclofen, clonazepam, BoTN
2	46/M	Hemorrhagic stroke in pons and midbrain owing to unknown etiology	Coarse irregular dysconjugate eye oscillatiions in horizontal, and vertical directions	Yes	Left laterocollis (mild), right torticollis (mild), right hand	Head tremor	memantine
3	26/M	Pliocytic astrocytoma status postradioablation, hemorrhage	Horizontal and vertical pendular nystagmus in straight‐ahead and eccentric gaze	No	Low face dystonia	Upper extremity ataxia	Leviteracetam (for history of seizure)
4	42/F	Infarction of brainstem, left cerebellar hemisphere, superior vermis, left superior cerebellar peduncle, thalamus, and left occipital cortex owing to vertebral artery dissection	Irregular, coarse, disconjugate oscillations of both eyes in all three axes, more prominent nystagmus in vertical axis	Yes	Torticollis (mild), right‐hand dystonia (mild)	Both appendicular ataxia, mild head tremor, perioral twiches	memantine, gabapentin, clonazepam
5	56/M	Pontine stroke	Prominent horizontal and mild torsional nystagmus in primary gaze; no change in eccentric gaze, enucleation of the left eye	Yes	Moderate‐to‐severe torticollis, mild retrocollis, mild shoulder elevation	Upper appendicular ataxia	BoTN
6	48/M	Pontine hemorrhagic stroke after AVM rupture and fall	Horizontal, vertical, and torsional coars, irregular, disconjugate nystagmus	Yes	Moderate‐to‐severe torticollis, mild laterocollis, moderate bilateral hand dystonia, bilateral foot dystonia		memantine

AVM, arteriovenous malformation.