NCT02626052

Helpfulness of the Vibration Test Performed in Room Light on Clients With Inner Ear Problems

Diagnostic Accuracy of the Vibration Induced Nystagmus Test in Room Light.

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 256 (actual)
• Sponsor: Aultman Health Foundation · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study is to explore the diagnostic values associated with both a positive and negative Skull Vibration Induced Nystagmus Test (SVINT) performed in room light (with fixation). The hypotheses include: 1. A positive room light SVINT will be identified in individuals with moderate to severe vestibular asymmetries. 2. A positive room light SVINT will be present when 10 beats or more (counted over 10 seconds) of nystagmus are found with fixation blocked.

Detailed description

Dizziness and vertigo account for about four million visits to the Emergency Department per year and costs for management in the Emergency Department are estimated to be about four billion dollars per year. Vestibular problems are a major cause of dizziness. Simple to perform and inexpensive bedside vestibular tests are needed. The Skull Vibration-Induced Nystagmus Test (SVINT) with fixation blocked has been considered a vestibular gold standard test with strong psychometric values. No studies on the diagnostic accuracy of the SVINT in room light have been performed.

Conditions

• Vestibular Disease

Interventions

Type	Name	Description
BEHAVIORAL	Dizziness Handicap Inventory	A standardized questionnaire used to quantify symptoms of dizziness.
BEHAVIORAL	Global Rating of Change	A standardized questionnaire used to review the overall outcome of the participants condition with physical therapy.
BEHAVIORAL	Patient Acceptable Symptom State	A standardized questionnaire used to determine whether meaningful progress has been made
PROCEDURE	Spontaneous Nystagmus Test	An observational test procedure used to identify involuntary eye movements caused by inner ear and/or brain dysfunction. The test is performed both in room light and with fixation blocked with a Micromedical Technologies infrared lens.
PROCEDURE	Gazehold Nystagmus Test	An observational test procedure used to identify involuntary eye movements caused by inner ear and/or brain dysfunction. The test is performed both in room light and with fixation blocked with a Micromedical Technologies infrared lens.
PROCEDURE	Primary Vibration Test	A test used to identify asymmetry that may be present in the vestibular system through 60-100 MHz vibration applied to the mastoid bone. A WAHL massager is used to stimulate the inner ear by vibrating the mastoid bone. The test is performed both in room light and with fixation blocked with a Micromedical Technologies infrared lens.

Timeline

• Start date: 2015-12-01
• Primary completion: 2017-01-26
• Completion: 2017-01-26
• First posted: 2015-12-10
• Last updated: 2020-01-18