Development of a new method to recovery positional nystagmus in benign paroxysmal positional vertigo that disappeared due to benign paroxysmal positional vertigo fatigue

UMIN ID: UMIN000054208

Registered date:20/04/2024

Basic Information

• Recruitment status: Recruiting
• Health condition(s) or Problem(s) studied: Posterior canal type of benign paroxysmal positional vertigo
• Date of first enrollment: 2024/04/19
• Target sample size: 30
• Countries of recruitment: Japan
• Study type: Interventional
• Intervention(s): After confirming that BPPV fatigue has occurred in the second Dix-Hallpike test, in a sitting position, bend the head forward approximately 90 degrees and rotate it toward the affected side in 20 patients. In the other 10 patients, soon after confirming that BPPV fatigue has occurred in the second Dix-Hallpike test, the third Dix-Hallpike test will be performed.

Outcome(s)

• Primary Outcome: The ratio of maximum slow phase eye velocity (MSPEV) of positional nystagmus when third Dix-Hallpike test against MSPEV of positional nystagmus when first Dix-Hallpike test
• Secondary Outcome: The values of all maximum slow phase eye velocity of positional nystagmus when first, second and third Dix-Hallpike tests

Key inclusion & exclusion criteria

• Age minimum: 20years-old
• Age maximum: 95years-old
• Gender: Male and Female
• Exclude criteria: Patients who have a disease in the neck or lumbar region and cannot undergo a Dix-Hallpike test Pregnant woman Other patients whose attending physician has determined that it is inappropriate to participate in this study

Related Information

• Primary Sponsor: Bell land General Hospital
• Source(s) of Monetary Support: KAKENHI Grant