Efficacy of Postural Restriction in Treating Benign Paroxysmal Positional Vertigo

Study Overview
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Brief Summary
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The standard treatment of posterior semicircular canal benign paroxysmal positional vertigo is the canalith repositioning procedure or the Epley maneuver. Based on the present literature, there is controversy on the efficacy of post-maneuver postural restrictions.The aim of this study was to conduct a randomized controlled trial to compare the treatment efficacy of post-maneuver postural restriction with CRP alone in patients with posterior semicircular canal benign paroxysmal positional vertigo.

Detailed Description
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Benign paroxysmal positional vertigo is the most common cause of vertigo. Based on the present literature, there is controversy on the efficacy of post-maneuver postural restrictions.Some study designs were not randomized controlled trials. The present study offers an alternative way of postural restriction to maintain postural restriction as much as possible.

Official Title
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Efficacy of Postural Restriction in Treating Benign Paroxysmal Positional Vertigo

Conditions
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Benign Paroxysmal Positional Vertigo

Intervention / Treatment
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* Behavioral: Postural restriction
* Behavioral: Normal daily activity


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with unilateral posterior semicircular canal benign paroxysmal positional vertigo and A negative neurologic examination Exclusion Criteria: Secondary benign paroxysmal positional vertigo caused by trauma head injury, inner ear surgery, viral labyrinthitis or Meniere's disease Patients with central vertigo, cervical spine, neurologic, otologic, psychiatric diseases Patients who used medications that affected the neurologic and otologic systems for less than 48 hours

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Postural restriction<br>The patients were instructed to avoid head movements, wear a soft collar during the daytime, wear a supporting pillow and sleep in the semi-upright position at a 45 degree head elevation from the horizontal plane during the nighttime for 48 hours. | Behavioral: Postural restriction<br>* The patients were instructed to avoid head movements, wear a soft collar during the daytime, wear a supporting pillow and sleep in the semi-upright position at a 45 degree head elevation from the horizontal plane during the nighttime for 48 hours.<br>|
| Active Comparator: Normal daily activity<br>The patients did not follow any postural restrictions and were asked to live as normally as possible. | Behavioral: Normal daily activity<br>* The patients did not follow any postural restrictions and were asked to live as normally as possible.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The Dix-Hallpike test | The Dix-Hallpike test results | 2 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Resolution time | Time interval until the patient report recurrent vertigo confirmed by positive Dix-Hallpike | 24 weeks | 
| Medication needed | Need of medication to treat vertigo (in this study, betahistine) | 24 weeks | 
| the Dizziness Handicap Inventory (DHI) |  | 24 weeks | 
| Recurrent rate |  | 24 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Benign Paroxysmal Positional Vertigo, Postural Restriction