The Comparison of Particle Repositioning Maneuver and Postural Restriction Therapy for Posterior Semicircular Canal Benign Paroxysmal Positional Vertigo

Objective:To assess the effects of particle repositioning maneuver(PRM) and postural restriction therapy on posterior semicir- cular canal benign paroxysmal positional vertigo(BPPV).Methods:Patients with posterior semicircular canal BPPV were randomly divided into 2 groups:repositioning group(n=33) and control group(n=32) .Patients in repositioning group were received PRM and postural re- striction therapy,patients in control group were only received postural restriction therapy.Results:The success rates in repositioning group and control group were 75． 8%(25/33) and 15． 6%(5/32) ,respectively 4 days after theroply,there was significant difference between the two groups(X~2=21． 28,P＜0． 005) .The two rates were 87． 9%(29/33) and 28． 1% (9/32) ,respectively 7 days after therapy the difference was also significant(X~2=21． 49,P＜0． 005) .Conclusion:The therapy effect of PRM was superior to postural striction,and all patients should be treated by PRM when the diagnosis of posterior semicircular canal BPPV was macle.