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Updated: Aug 22, 2025

Assessment of Static Graviceptive Perception in the Roll-Plane using the Subjective Visual Vertical Paradigm
Published on: April 28, 2020
[The changes in subjective visual vertical after otolith reduction in patients with BPPV]
Peihong Li1, Qiang Liu1, Wei Wang1
1Department of Otorhinolaryngology Head and Neck Surgery,Tianjin First Central Hospital;Institute of Otolaryngology of Tianjin;Key Laboratory of Auditory Speech and Balance Medicine,Tianjin;Key Medical Discipline of Tianjin(Otolaryngology.
Benign paroxysmal positional vertigo (BPPV) treatment impacts subjective visual vertical (SVV) perception. Otolith reduction in BPPV patients alters SVV, aiding in utricular function assessment.
Area of Science:
- Neurology
- Otolaryngology
- Vestibular System
Context:
- Benign paroxysmal positional vertigo (BPPV) is a common vestibular disorder.
- Otolith dysfunction is implicated in BPPV pathophysiology.
- Accurate assessment of vestibular function is crucial for BPPV management.
Purpose:
- To investigate the changes in subjective visual vertical (SVV) following otolith reduction in BPPV patients.
- To analyze the correlation between otolith reduction and SVV deviation.
- To evaluate the utility of SVV testing in assessing utricular function post-treatment.
Summary:
- This study analyzed SVV changes in 46 BPPV patients before and after otolith reduction, comparing them to 50 healthy controls.
- Significant SVV deviations were observed in right-sided BPPV before and after treatment, and compared to controls.
- Left-sided BPPV showed no significant SVV difference post-treatment compared to controls, though individual variations occurred.
Impact:
- Otolith reduction in BPPV can induce new vestibular stimulation, affecting utricular function.
- SVV testing serves as a valuable tool for evaluating utricular function in BPPV patients.
- Understanding SVV changes aids in refining BPPV treatment strategies and patient prognoses.
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