Changes in quick phases of downbeat nystagmus during visual fixation
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DOI: 10.1007/s00415-017-8493-0
Abstract: Under normal conditions, the fixation of a target (visual fixation) consists of eye movements, such as microsaccades and drifts [1]. Nystagmus disturbs visual fixation by causing a substantial eye drift (slow phase) and a saccade… read more here.
Keywords: visual fixation; fixation; component; quick phases ... See more keywords
Spontaneous downbeat nystagmus in posterior semicircular canal benign paroxysmal positional vertigo: a canalith jam?
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DOI: 10.1007/s10072-020-04529-9
Abstract: Dear Editor-in-Chief, Downbeat nystagmus (DBN) is a common type of acquired nystagmus. Though it is generally attributed to central nervous system (CNS) diseases, mainly cerebellar dysfunctions or other posterior fossa abnormalities, it could be also… read more here.
Keywords: semicircular canal; psc; downbeat nystagmus; positional vertigo ... See more keywords
Lithium-induced downbeat nystagmus
Sign Up to like & getrecommendations! Published in 2017 at "American Journal of Ophthalmology Case Reports"
DOI: 10.1016/j.ajoc.2017.06.012
Abstract: We report the case of a 76-year old lady under lithium carbonate for a bipolar disorder who presented with a suspected optic neuritis. A typical lithium-induced downbeat nystagmus was observed. Discontinuation of lithium therapy resulted… read more here.
Keywords: ophthalmology; induced downbeat; downbeat nystagmus; lithium ... See more keywords
Prolonged Positional Downbeat Nystagmus in Benign Paroxysmal Positional Vertigo: A Case Report and Literature Review.
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DOI: 10.1044/2020_aja-20-00187
Abstract: Purpose This study aimed to report an unusual case of benign paroxysmal positional vertigo (BPPV), who showed prolonged positional downbeat nystagmus without latency and was diagnosed with cupulolithiasis of the anterior canal (AC). We compared… read more here.
Keywords: paroxysmal positional; positional vertigo; case; downbeat nystagmus ... See more keywords
Case Report: Downbeat Nystagmus Due to Epidural Puncture during Labor with Undiagnosed Arnold-Chiari Malformation
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DOI: 10.1097/opx.0000000000001916
Abstract: SIGNIFICANCE Epidural anesthesia is a safe procedure used in pregnant patients during labor. However, caution should be exercised in those patients who have concurrent Arnold-Chiari malformation. PURPOSE This study aimed to report a rare and… read more here.
Keywords: arnold chiari; downbeat nystagmus; report; chiari malformation ... See more keywords
Transient downbeat nystagmus
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DOI: 10.1136/pn-2022-003515
Abstract: © Author(s) (or their employer(s)) 2022. No commercial reuse. See rights and permissions. Published by BMJ. CLINICAL QUESTION An 82yearold woman developed new onset nystagmus immediately after undergoing a nephrectomy with radical cystectomy, performed for… read more here.
Keywords: transient downbeat; neurology; downbeat nystagmus;
Conversion of upbeat to downbeat nystagmus in Wernicke encephalopathy
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DOI: 10.1212/wnl.0000000000006385
Abstract: Objective To explain (1) why an initial upbeat nystagmus (UBN) converts to a permanent downbeat nystagmus (DBN) in Wernicke encephalopathy (WE) and (2) why convergence and certain vestibular provocative maneuvers may transiently switch UBN to… read more here.
Keywords: downbeat nystagmus; wernicke encephalopathy; dbn; conversion ... See more keywords