Benign paroxysmal positional vertigo fatigue of inhibitory positional nystagmus in posterior-canal-type benign paroxysmal positional vertigo

Benign paroxysmal positional vertigo fatigue of inhibitory positional nystagmus in posterior-canal-type benign paroxysmal positional vertigo - BPPV fatigue of inhibitory positional nystagmus in posterior-canal-type BPPV

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000060886

Enrollment

Registered

2026-03-10

Start date

2026-03-10

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Posterior-canal-type benign paroxysmal positional vertigo

Interventions

Patients will be randomly assigned to either Group A or Group B, and the following interventions will be performed. Group A The Imai maneuver will be performed first, followed by a second Imai man

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: kdlsk

Exclusion criteria

Exclusion criteria: dkld

Design outcomes

Primary

Measure	Time frame
In patients with posterior-canal-type benign paroxysmal positional vertigo, inhibitory nystagmus in the affected posterior canal is induced by bending the head forward and rotating it toward the affected side while in a sitting position (a procedure called the Imai maneuver). The primary outcome measure of this study was the ratio of the maximum slow-phase eye velocity of positional nystagmus recorded during the second Imai maneuver to that recorded during the first Imai maneuver.	—

Measure

Time frame

In patients with posterior-canal-type benign paroxysmal positional vertigo, inhibitory nystagmus in the affected posterior canal is induced by bending the head forward and rotating it toward the affected side while in a sitting position (a procedure called the Imai maneuver). The primary outcome measure of this study was the ratio of the maximum slow-phase eye velocity of positional nystagmus recorded during the second Imai maneuver to that recorded during the first Imai maneuver.

—

Secondary

Measure	Time frame
How the maximum slow-phase velocity of positional nystagmus changes over three consecutive Imai maneuvers	—

Countries

Japan

Contacts

Public ContactTakao Imai

Bellland General Hospital Otorhinolaryngology - Head and Neck Surgery

timai@ent.med.osaka-u.ac.jp072-234-2001

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026