Prevalence and Characteristics of Positional Nystagmus in Normal Subjects

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
Camilla MartensStein Helge Glad Nordahl

Abstract

In clinical practice, patients are often referred due to a finding of positional nystagmus that does not always appear to correlate with clinical symptoms of benign paroxysmal positional vertigo. To know when to consider nystagmus to be of clinical relevance, it is necessary to know the prevalence and characteristics of positional nystagmus in a healthy population. Case series of 75 healthy subjects. Two tertiary referral centers in Norway. Seventy-five adult subjects aged 40 ± 13 years (mean ± SD; range, 21-87) without a history of vertigo or balance disorder were included from 2013 to 2015. The subjects underwent 6 different standardized positional tests in a repositioning chair. Videonystagmography was used to record eye movements. Of 1350 recordings, 1329 were included and analyzed. Positional nystagmus was detected in 88% of the subjects. The most common finding was nystagmus in the Dix-Hallpike position, which occurred in 55% of the subjects. The 95th percentile of the maximum slow-phase velocity for each subject was found to be 5.06° per second (n = 54) in the horizontal plane and 6.48° per second (n = 48) in the vertical plane. Positional nystagmus is a common finding in normal subjects and occurred in 88% of the health...Continue Reading

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Citations

Sep 16, 2016·Journal of Neurology·Miriam S WelgampolaG Michael Halmagyi
May 17, 2018·Acta Oto-laryngologica·Jin Su ParkMin-Beom Kim
Sep 2, 2017·International Journal of Audiology·Hanna JefferyJennifer Rogers
Nov 10, 2017·Current Opinion in Neurology·Alexander A Tarnutzer, Dominik Straumann
Sep 20, 2020·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Ellen LindellCaterina Finizia
Aug 31, 2020·Laryngoscope Investigative Otolaryngology·Camilla MartensStein Helge Glad Nordahl
May 16, 2019·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Camilla MartensStein Helge Glad Nordahl
Dec 9, 2020·Journal of Vestibular Research : Equilibrium & Orientation·Allison S YoungMiriam S Welgampola
Mar 26, 2021·BioMed Research International·Maja StriteskaJan Kremlacek
May 4, 2021·Cephalalgia : an International Journal of Headache·Allison S YoungMiriam S Welgampola
Aug 22, 2020·Magnetic Resonance Imaging·Andrea GrantKamil Uğurbil

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