Correlation Tests for Patients With Benign Paroxysmal Positional Vertigo

Study Overview
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Brief Summary
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This study aimed to investigate whether there is a relationship between nystagmus intensity and vestibular-ocular reflex gains by comparing Videonystagmography and video head impulse test in patients with posterior semicircular canal-benign paroxysmal positional vertigo.

Detailed Description
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The aim of this study is to investigate the relationship between the vestibulo-ocular reflex (VOR) gains obtained by video Head Impulse Test (vHIT) and the slow phase velocity (SPV) of nystagmus in patients with benign paroxysmal positional vertigo (BPPV) originating from the posterior semicircular canal (PSCC). The patients were included in two groups. The study group consisted of patients with isolated PSCC BPPV (PSCC-BPPV), and the control group consisted of age and gender-matched healthy individuals. VOR gains were measured by vHIT in both the study group and the control group. The SPV values of the nystagmus observed during the Dix-Hallpike maneuver in the study group were recorded by Videonystagmography (VNG) and compared with the VOR gains.

Official Title
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Evaluation of Patients With Benign Paroxysmal Positional Vertigo With vHIT (Video Head Impulse Test) and VNG (Videonystagmography)

Conditions
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Positional Vertigo, Reflexes, Vestibo-Ocular, Nystagmus Vestibular

Intervention / Treatment
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* Diagnostic Test: The relationship between the vestibulo-ocular reflex (VOR) gains and the slow phase velocity (SPV)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with isolated benign paroxysmal positional vertigo were included in the study group. The patients included in the control group were composed of those who did not complain of vertigo. Exclusion Criteria: -Participants with a history of neuro-otologic disease, an orthopedic disease that prevents neck movements, and any disease or surgery that causes impairment in ocular movements were excluded from the study.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| BPPV (benign paroxysmal positional vertigo)<br>VOR gains were measured by vHIT in both the study group and the control group. The SPV values of the nystagmus observed during the Dix-Hallpike maneuver in the study group were recorded by Videonystagmography (VNG) and compared with the VOR gains. | Diagnostic Test: The relationship between the vestibulo-ocular reflex (VOR) gains and the slow phase velocity (SPV)<br>* The vestibulo-ocular reflex (VOR) gains were measured by video Head Impulse Test (vHIT) in both the study group and the control group. The slow phase velocity (SPV) values of the nystagmus observed during the Dix-Hallpike maneuver in the study group were recorded by Videonystagmography (VNG) and compared with the VOR gains.<br>|
| Control<br>VOR gains were measured by vHIT in both the study group and the control group. The SPV values of the nystagmus observed during the Dix-Hallpike maneuver in the study group were recorded by Videonystagmography (VNG) and compared with the VOR gains. | Diagnostic Test: The relationship between the vestibulo-ocular reflex (VOR) gains and the slow phase velocity (SPV)<br>* The vestibulo-ocular reflex (VOR) gains were measured by video Head Impulse Test (vHIT) in both the study group and the control group. The slow phase velocity (SPV) values of the nystagmus observed during the Dix-Hallpike maneuver in the study group were recorded by Videonystagmography (VNG) and compared with the VOR gains.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Comparison of nystagmus intensity and vestibulo-ocular reflex gains in patients with benign paroxysmal positional vertigo | The vestibulo-ocular reflex (VOR) gains and the slow phase velocity (SPV) of nystagmus were compared in patients with benign paroxysmal positional vertigo. | 2019-2010 (15 months) | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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vestibular function tests, Head Impulse Test, semicircular canals