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TitleDescriptionSubject
1 Central Positional Vertigo and Nystagmus in a Posterior Fossa TumorThis is a 30-year old woman who presented with positional vertigo and vomiting following a concussion related to a car accident 3 months prior. She was initially diagnosed with posterior canal (PC) benign paroxysmal positional vertigo (BPPV), although there was no improvement with Epley maneuvers. T...Vestibular Nystagmus, Jerk Nystagmus, Gaze-Evoked Nystagmus, Central Positional Nystagmus, Cerebellar OMS, Downbeat Nystagmus, Upbeat Nystagmus
2 Idiopathic downbeat nystagmus exacerbated with positional maneuversThis is a 45-yo-woman with vertical oscillopsia for 6+ months, found to have downbeat nystagmus on examination. She mainly complained of dizziness and oscillopsia when laying down. She was found to have a significant exacerbation in her baseline downbeat nystagmus with straight head hanging, and in ...Downbeat nystagmus, Jerk nystagmus, Central positional nystagmus
3 Idiopathic downbeat nystagmus exacerbated with positional maneuvers - Part 2: patient is now on 4-aminopyridineThis is a 45-yo-woman presented in "Idiopathic downbeat nystagmus exacerbated with positional maneuvers". This video was taken after the patient had been on 4-aminopyridine for 3 months. There was marked improvement in subjective oscillopsia and objective downbeat nystagmus. The strong positional co...Downbeat nystagmus, Jerk nystagmus, Central positional nystagmus
4 Positional Nystagmus During an Attack of Vestibular MigraineA 50-year-old woman presented to clinic after experiencing multiple episodes of hours-long vertigo attacks that were associated with headache, photophobia and phonophobia. She had a history of motion sickness and migraine headaches in her teenage years. She was diagnosed with vestibular migraine. Sh...Central Positional Nystagmus; Downbeat Nystagmus; Rotary Nystagmus; Jerk Nystagmus
5 Positional downbeat nystagmus mimicking anterior canal BPPVAlthough positional downbeat nystagmus (pDBN) can indicate the rare anterior canal variant of benign paroxysmal positional vertigo, central mimics are common causes of pDBN. pDBN may be seen in multiple system atrophy (MSA), or seen with posterior fossa lesions, with a common example being a stroke ...Cerebellar, Jerk Nystagmus, Downbeat Nystagmus, Central Positional Nystagmus
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