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| ID | Type | Description | Link |
|---|---|---|---|
| F2022-081 | Registry Identifier | Datatilsynet, Region Nordjylland, Denmark |
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To investigate the prevalence of positional nystagmus in a population of healthy Danish adults.
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.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Examinations in a TRV chair | Diagnostic Test | Positional tests (Dix-Hallpike and SRT) traditionally used to diagnose BPPV uwith a TRV chair. |
| Measure | Description | Time Frame |
|---|---|---|
| Prevalence of positional nystagmus | Number of subjects presenting with positional nystagmus during specific changes of head positions. | 2 years |
| Measure | Description | Time Frame |
|---|---|---|
| Characteristics of positional nystagmus | Description the characteristics (latency, velocity, duration, direction) of positional nystagmus in healthy subjects. | 2 years |
| Measure | Description | Time Frame |
|---|---|---|
| Specify current diagnostic criteria for Benign Paroxysmal Positional Vertigo | Expansion and clarification of current diagnostic criteria for BPPV | 2 years |
Inclusion Criteria:
Exclusion Criteria:
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A population of healthy adults who meets the in- and exclusion criteria.
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| Name | Affiliation | Role |
|---|---|---|
| Dan D Hougaard, MD | Aalborg University Hospital | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Otolaryngology, Head- and Neck Surgery and Audiology | Aalborg | North Denmark | 9000 | Denmark |
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| ID | Term |
|---|---|
| D010808 | Physical Examination |
| ID | Term |
|---|---|
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
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