Head-tilting stabilometry in patients with benign paroxysmal positional vertigo

Area of Science:

• Neurology
• Vestibular System Disorders
• Diagnostic Methods

Background:

• Benign paroxysmal positional vertigo (BPPV) is linked to otolith organ degeneration.
• Assessing otolith organ function is crucial for BPPV diagnosis and management.

Purpose of the Study:

• To investigate stabilometry parameter changes in BPPV patients under upright and head-tilt conditions.
• To evaluate the potential of head-tilting stabilometry as an otolith function test.

Main Methods:

• Stabilometry was performed on 21 right BPPV patients, 21 left BPPV patients, and 21 controls.
• Participants stood barefoot with eyes closed, first upright, then with 30-degree left and right head tilts.

Main Results:

• Right BPPV patients showed significantly smaller velocity vector lengths during head tilts compared to upright stance.
• Right BPPV patients exhibited larger enveloped areas and velocity vector lengths than controls.
• No significant differences were observed in left BPPV patients compared to controls.

Conclusions:

• Right BPPV lesions appeared more severe than left BPPV lesions in this cohort.
• Head-tilting stabilometry, using total velocity vector length, shows promise as a reliable method for examining otolith function.