ArticleJournal of audiology & otology2024
Asymmetry of the Subjective Visual Vertical in Patients With Unilateral Peripheral Vestibular Deficit.
Article in Journal of audiology & otology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Side correlation between subjective visual vertical tilt and symptoms in migraine with vertigo.Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale · 2026Article
- Vestibular Evoked Myogenic Potentials to Diagnose Vestibular Neuritis: A Scoping Review.The Laryngoscope · 2026Article
- Ocular vestibular-evoked myogenic potentials in unilateral Ménière's disease: a narrative literature review.Frontiers in neurology · 2026Review
- Can video head impulse testing aid differential assessment of suspected vestibular migraine attacks?Frontiers in neurology · 2026Review
- Asymmetry and rehabilitation of the subjective visual vertical in unilateral vestibular hypofunction patients.Frontiers in systems neuroscience · 2024Article
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Authors and funding
2 authors.
Funding
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Abstract
BACKGROUND AND
objectivesPerception of verticality is clinically assessed using the subjective visual vertical (SVV), a test of the otolith system that consists of aligning a bar on the gravitational vertical in darkness. Patients with acute unilateral vestibulopathy (AUVP) show a systematic SVV bias toward the affected side, whichever the side of line orientation. Whether SVV estimates are symmetrical has not been investigated. SUBJECTS AND
methodsThis study included 10 patients with AUVP (vestibular neuritis) and 10 with BPPV (posterior semicircular canal). SVV measurements were made at two preset angles of line orientation (15° and 30°) toward the ipsilateral and contralateral sides, relative to the affected side.
resultsThe results showed asymmetrical SVV estimates in the AUVP group, with significantly greater SVV errors for ipsilateral than contralateral line orientation, as well as for the preset angle of 30° compared to 15°. SVV estimates were significantly lower in patients with BPPV who also exhibited SVV asymmetry. SVV estimates remained unchanged just after the maneuver and were normalized some days later or after supplementary maneuvers.
conclusionsSVV asymmetry should be routinely considered in the clinic. We recommend individually assessing ipsilateral and contralateral SVV and using at least two preset angles. This allows for a better assessment and diagnosis of otolith organ imbalance that can trigger chronic instability and dizziness. The contribution of neck afferents related to head position in space seems to be the main source of SVV asymmetry.
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