Prevalence of Positional Nystagmus in a Population of Healthy Adults

Completed

• Conditions: Healthy Volunteers; Positional Nystagmus

• Registration Number: NCT05554770
• Lead Sponsor: Aalborg University Hospital

Brief Summary

To investigate the prevalence of positional nystagmus in a population of healthy Danish adults.

Detailed Description

Open-label, cross-sectional prospective study examining the prevalence of positional nystagmus in healthy adults (adult with no previous or current inner ear disease) using a mechanical repositioning chair (TRV-chair, Interacoustics, Middelfart, Denmark). Patients will undergo traditional testing related to positional nystagmus by means of both the Dix-Hallpike test and Supine Roll Test (SRT) bilaterally. Latency, duration, and slow phase velocities will be registered and examiner as well as order of the positional tests performed with the TRV chair will be block randomized.

Study Timeline

• Study First Submitted: 2022-09-22
• Study First Submitted QC: 2022-09-22
• Study First Posted: 2022-09-26
• Study Start: 2022-10-06
• Primary Completion: 2023-01-01
• Study Completion: 2023-01-01
• Status Verified: 2023-08
• Last Update Submitted: 2023-08-07
• Last Update Posted: 2023-08-08

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 78

Inclusion Criteria

• • 18 years

Exclusion Criteria

• Previous or current BPPV, inner ear disease, other ear conditions or neurological conditions
• Reduced eye mobility
• Alcohol consumption within 48 hours
• Weight > 150 kg.
• Known cerebral aneurysm
• Cerebral haemorrhage within 1 month
• Trouble cooperating during examinations
• DHI-score > 14

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Prevalence of positional nystagmus	2 years	Number of subjects presenting with positional nystagmus during specific changes of head positions.

Secondary Outcome Measures

Name	Time	Method
Characteristics of positional nystagmus	2 years	Description the characteristics (latency, velocity, duration, direction) of positional nystagmus in healthy subjects.

Trial Locations

Locations (1)

Department of Otolaryngology, Head- and Neck Surgery and Audiology; 🇩🇰 Aalborg, North Denmark Region, Denmark