Subjective Visual Vertical and Horizontal in Vestibular Migraine

Area of Science:

• Neuroscience
• Otolaryngology
• Vestibular System

Background:

• Vestibular migraine is a common cause of recurrent vertigo.
• Otolithic pathways are crucial for sensing gravity and linear acceleration.
• Assessing otolithic function is key to understanding vestibular migraine pathophysiology.

Purpose of the Study:

• To evaluate otolithic pathway function in vestibular migraine patients.
• To compare static and dynamic subjective visual vertical (SVV) and subjective visual horizontal (SVH) test results between patients and controls.
• To determine the utility of SVV and SVH testing in vestibular migraine.

Main Methods:

• A prospective hospital-based study involving 66 vestibular migraine patients and 82 healthy adults.
• Measurement of static and dynamic SVV and SVH using a software-based protocol.
• Analysis stratified by age groups (20-40, 41-60 years) and gender.

Main Results:

• Dynamic SVV and SVH were significantly elevated in vestibular migraine patients compared to controls across both age groups (p<0.05).
• Static SVH was significantly higher in older patients (41-60 years) with vestibular migraine (p<0.05).
• Elevated dynamic SVV and SVH were observed in both male and female patients (p<0.05).

Conclusions:

• Findings suggest evidence of otolithic pathway abnormalities in vestibular migraine.
• SVV and SVH testing can be a valuable tool for evaluating vestibular migraine.
• These tests may assist in symptom interpretation and rehabilitation strategies for vestibular migraine.