Idiopathic downbeat nystagmus exacerbated with positional maneuvers

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Identifier DBN_positional
Title Idiopathic downbeat nystagmus exacerbated with positional maneuvers
Subject Downbeat nystagmus, Jerk nystagmus, Central positional nystagmus
Creator Daniel R. Gold, DO, Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, Emergency Medicine, and Medicine, The Johns Hopkins School of Medicine
Description This 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 right and left Dix-Hallpike. Although positional downbeat nystagmus (pDBN) can be seen with the uncommon anterior canal variant of BPPV, usually it is seen with disorders of the cerebellum or cervicomedullary junction. When pDBN is seen in a patient with parkinsonism, multiple system atrophy should be a consideration. In this patient, the downbeat was in isolation, there was no cerebellar ataxia, and extensive evaluation was unrevealing. Number of Figures and legend for each: 0 Number of Videos and legend for each: 1, Patient with downbeat nystagmus, most prominent with positional maneuvers.
Publisher Spencer S. Eccles Health Sciences Library, University of Utah
Date 2016
Type Image/MovingImage
Format video/mp4
Rights Management Copyright 2016. For further information regarding the rights to this collection, please visit:
Collection Neuro-ophthalmology Virtual Education Library: NOVEL
Language eng
ARK ark:/87278/s66t3w9k
Setname ehsl_novel_gold
Date Created 2016-09-07
Date Modified 2017-04-17
ID 187739
Reference URL
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