Nystagmus characteristics of healthy controls.
Adolescent
Adult
Aged
Aged, 80 and over
Eye Protective Devices
Female
Healthy Volunteers
Humans
Male
Middle Aged
Nystagmus, Pathologic
/ diagnosis
Nystagmus, Physiologic
/ physiology
Patient Positioning
/ instrumentation
Vestibular Function Tests
/ instrumentation
Video Recording
/ methods
Young Adult
Nystagmus
normal control
vertigo
video nystagmography
video oculography
Journal
Journal of vestibular research : equilibrium & orientation
ISSN: 1878-6464
Titre abrégé: J Vestib Res
Pays: Netherlands
ID NLM: 9104163
Informations de publication
Date de publication:
2020
2020
Historique:
pubmed:
9
12
2020
medline:
9
10
2021
entrez:
8
12
2020
Statut:
ppublish
Résumé
Healthy controls exhibit spontaneous and positional nystagmus which needs to be distinguished from pathological nystagmus. Define nystagmus characteristics of healthy controls using portable video-oculography. One-hundred and one asymptomatic community-dwelling adults were prospectively recruited. Participants answered questions regarding their audio-vestibular and headache history and were sub-categorized into migraine/non-migraine groups. Portable video-oculography was conducted in the upright, supine, left- and right-lateral positions, using miniature take-home video glasses. Upright position spontaneous nystagmus was found in 30.7% of subjects (slow-phase velocity (SPV)), mean 1.1±2.2 degrees per second (°/s) (range 0.0 - 9.3). Upright position spontaneous nystagmus was horizontal, up-beating or down-beating in 16.7, 7.9 and 5.9% of subjects. Nystagmus in at least one lying position was found in 70.3% of subjects with 56.4% showing nystagmus while supine, and 63.4% in at least one lateral position. While supine, 20.8% of subjects showed up-beating nystagmus, 8.9% showed down-beating, and 26.7% had horizontal nystagmus. In the lateral positions combined, 37.1% displayed horizontal nystagmus on at least one side, while 6.4% showed up-beating, 6.4% showed down-beating. Mean nystagmus SPVs in the supine, right and left lateral positions were 2.2±2.8, 2.7±3.4, and 2.1±3.2°/s. No significant difference was found between migraine and non-migraine groups for nystagmus SPVs, prevalence, vertical vs horizontal fast-phase, or low- vs high-velocity nystagmus (<5 vs > 5°/s). Healthy controls without a history of spontaneous vertigo show low velocity spontaneous and positional nystagmus, highlighting the importance of interictal nystagmus measures when assessing the acutely symptomatic patient.
Sections du résumé
BACKGROUND
Healthy controls exhibit spontaneous and positional nystagmus which needs to be distinguished from pathological nystagmus.
OBJECTIVE
Define nystagmus characteristics of healthy controls using portable video-oculography.
METHODS
One-hundred and one asymptomatic community-dwelling adults were prospectively recruited. Participants answered questions regarding their audio-vestibular and headache history and were sub-categorized into migraine/non-migraine groups. Portable video-oculography was conducted in the upright, supine, left- and right-lateral positions, using miniature take-home video glasses.
RESULTS
Upright position spontaneous nystagmus was found in 30.7% of subjects (slow-phase velocity (SPV)), mean 1.1±2.2 degrees per second (°/s) (range 0.0 - 9.3). Upright position spontaneous nystagmus was horizontal, up-beating or down-beating in 16.7, 7.9 and 5.9% of subjects. Nystagmus in at least one lying position was found in 70.3% of subjects with 56.4% showing nystagmus while supine, and 63.4% in at least one lateral position. While supine, 20.8% of subjects showed up-beating nystagmus, 8.9% showed down-beating, and 26.7% had horizontal nystagmus. In the lateral positions combined, 37.1% displayed horizontal nystagmus on at least one side, while 6.4% showed up-beating, 6.4% showed down-beating. Mean nystagmus SPVs in the supine, right and left lateral positions were 2.2±2.8, 2.7±3.4, and 2.1±3.2°/s. No significant difference was found between migraine and non-migraine groups for nystagmus SPVs, prevalence, vertical vs horizontal fast-phase, or low- vs high-velocity nystagmus (<5 vs > 5°/s).
CONCLUSIONS
Healthy controls without a history of spontaneous vertigo show low velocity spontaneous and positional nystagmus, highlighting the importance of interictal nystagmus measures when assessing the acutely symptomatic patient.
Identifiants
pubmed: 33285657
pii: VES200022
doi: 10.3233/VES-200022
pmc: PMC9249309
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
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