ArticleFrontiers in systems neuroscience2024
Asymmetry and rehabilitation of the subjective visual vertical in unilateral vestibular hypofunction patients.
Article in Frontiers in systems neuroscience, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Vestibular rehabilitation and recovery in divers with inner ear decompression sickness: a case series.Diving and hyperbaric medicine · 2025Observational
- Updated Views on Vestibular Physical Therapy for Patients with Vestibular Disorders.Healthcare (Basel, Switzerland) · 2025Article
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Authors and funding
4 authors.
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Abstract
Aims: Patients with acute unilateral peripheral vestibular hypofunction (AUVP) show postural, ocular motor, and perceptive signs on the diseased side. The subjective visual vertical (SVV) test measures the perceived bias in earth-vertical orientation with a laser line in darkness. This study was aimed at (1) examining whether SVV bias could depend on preset line orientation and angles, and (2) investigating whether vestibular rehabilitation (VR) can improve SVV normalization. To our knowledge, SVV symmetry/asymmetry and impact of VR on SVV normalization have never been documented in the literature. Participants and methods: We investigated the SVV bias in a retrospective study (Study 1: Results: Study 1 showed asymmetrical values of the SVV bias. On average, the SVV errors were significantly higher for ipsilateral compared to contralateral line orientation (6.98° ± 3.7° vs. 4.95° ± 3.6°; Conclusion: We recommend routine assessment of the ipsilateral and contralateral SVV bias separately for a better evaluation of otolith organs imbalance that can trigger chronic instability and dizziness. The SVV bias and the postural impairment caused by the imbalanced otolith inputs after unilateral vestibular loss can be rapidly normalized by tilting the patients in the roll plane, an additional means in the physiotherapist's toolbox. The protocol likely reweights the visual and somatosensory cues involved in the perception of verticality.
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