ArticleClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2018
Ocular torsion responses to electrical vestibular stimulation in vestibular schwannoma.
Article in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Optimising electrical vestibular stimulation (EVS) for assessing vestibular function.Clinical neurophysiology practice · 2025Article
- Induced electric fields in MRI settings and electric vestibular stimulations: same vestibular effects?Experimental brain research · 2024Review
- Development of a conversion model between mechanical and electrical vestibular stimuli.Journal of neurophysiology · 2020Article
- Comparing Ocular Responses to Caloric Irrigation and Electrical Vestibular Stimulation in Vestibular Schwannoma.Frontiers in neurology · 2019Article
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6 authors.
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Abstract
objectivesWe determined if eye movements evoked by Electrical Vestibular Stimulation (EVS) can be used to detect vestibular dysfunction in patients with unilateral vestibular schwannoma (VS).
methodsOcular torsion responses to monaural sinusoidal EVS currents (±2 mA, 2 Hz) were measured in 25 patients with tumours ranging in size from Koos grade 1-3. For comparative purposes we also measured postural sway response to EVS, and additionally assessed vestibular function with the lateral Head Impulse Test (HIT). Patient responses were compared to age-matched healthy control subjects.
resultsPatients exhibited smaller ocular responses to ipsilesional versus contralesional EVS, and showed a larger asymmetry ratio (AR) than control subjects (19.4 vs. 3.3%, p < 0.05). EVS-evoked sway responses were also smaller in ipsilesional ear, but exhibited slightly more variability than the eye movement response, along with marginally lower discriminatory power (patients vs. controls: AR = 16.6 vs 2.6%, p < 0.05). The HIT test exhibited no significant difference between groups.
conclusionsThese results demonstrate significant deficits in the ocular torsion response to EVS in VS patients. SIGNIFICANCE: The fast, convenient and non-invasive nature of the test are well suited to clinical use.
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