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Clinical Trial Summary

Benign Paroxysmal Positional Vertigo (BPPV) is a benign inner ear disease that causes the patient to experience short episodes of vertigo when there are changes in head position. The current theory on the causes of BPPV is the displacement of the otoconia from the otolith organ to the semicircular canal organs. BPPV's current treatments consist of repositioning maneuvers to readjust the location of the otoconia back to its original place. Even though the treatments are highly successful in many cases, this study, if proven successful, will help confirm this theory and will help diagnose complicated cases where BPPV is recurrent and treatment has been unsuccessful.


Clinical Trial Description

Benign Paroxysmal Positional Vertigo (BPPV) is a benign inner ear disease that causes the patient to experience vertigo when there are changes in head position. The prevalence is estimated to account for 20-30% of all vertigo diagnoses in a specialized clinic (von Brevern et al., 2007). The current theory on the cause of BPPV is the displacement of otoconia from the otolith organ to the semicircular canal organs due to gravitational forces. Current treatments for BPPV consist of repositioning maneuvers to readjust the location of the otoconia back to its original place (von Brevern et al., 2015). Even though the treatment is highly successful in many cases patients still have recurrent (26%) or persistent (4%) symptoms (Dorigueto et al., 2009), and objective confirmation of the disease is warranted. Until now, visualization and confirmation of the presence of otoliths have not been successful in clinical practice. This is largely due to the very small size of the otoliths in a small inner ear structure, requiring sensitive and ultra-high-resolution imaging. In 2021, a study was performed in Japan using 3 Dimensional Computed Tomography (3D CT) scans to detect the otoconia inside the horizontal canal. It compared scans of people with BPPV in the horizontal canal and healthy individuals (Yamane et al., 2021). The authors were able to visualize otoconia-like substance inside the canal in all 10 out of 10 affected patients and 6 out of 10 of the healthy participants in at least one ear (Yamane et al., 2021). In this study, the investigators will image the patients temporal bone with an ultra-high-resolution CT-scan (Benson et al.2022). They will focus on imaging the posterior canal for BPPV, and compare it with the imaging of individuals who do not have BPPV. In addition, they will compare the imaging of the canal pre and post-treatment using the Epley maneuver. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05969340
Study type Interventional
Source Academisch Ziekenhuis Maastricht
Contact
Status Withdrawn
Phase N/A
Start date November 1, 2023
Completion date March 1, 2025

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