Clinical Trial: The Treatment of Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: The Effectiveness Comparison of Three Different Methods for the Treatment of Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo: Prospective, Double Blinded

Brief Summary: The purpose of this study was to compare the treatment effectiveness of three different methods for posterior semicircular canal benign paroxysmal positional vertigo. The included methods are Modified Epley maneuver, Semont maneuver and Sham maneuver.

Detailed Summary: This study was a prospective, double blinded, randomized, multicenter clinical trial. The enrolled posterior semicircular canal benign paroxysmal positional vertigo patients were randomized to one of the three treatment regimens when they are diagnosed with the Dix-Hallpike test. An then the patient was treated with one of the three maneuvers. After 20 minutes, the patient was examined with the Dix-Hallpike test again. The resolution of nystagmus and symptoms were checked. When the nystagmus was sustained, the same treatment was applied once again. And after 20 minutes, the patient was examined with the Dix-Hallpike test too. 1 day after and 7 days after, the patient was re-examined with the Dix-Hallpike test.
Sponsor: Asan Medical Center

Current Primary Outcome: Initial Effectiveness of Treatment for the Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo [ Time Frame: 20 minutes ]

The immediate effectiveness of treatment was determined by otolaryngologists with the Dix-Hallpike test 20 minutes after initial manerver applied. The investigator had no information of the treatment applied to the patient. The complete resolution means absence of nystagmus and paroxysmal vertigo symptom. If there was a sustained nystagmus, the latency and duration was measured.


Original Primary Outcome: Same as current

Current Secondary Outcome: Delayed Effectiveness of Treatment for the Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo [ Time Frame: 1, 7 day ]

Ather 1 day and 7 days after the initial treatment was applied, the patients were re-visit the clinic and re-examined with the Dix-Hallpike test. The absence of nystagmus and vertigo was determinded.


Original Secondary Outcome: Same as current

Information By: Asan Medical Center

Dates:
Date Received: January 6, 2014
Date Started: October 2012
Date Completion:
Last Updated: January 6, 2014
Last Verified: January 2014