The purpose of this study was to compare the immediate efficacies of each treatment maneuvers in treatment of geotorpic horizontal canal benign paroxysmal positional vertigo (HC-BPPV).

A randomized prospective study of patients with HC-BPPV. Patients with geotropic type of HC-BPPV were randomized to one of each three treatment groups at their first clinic visit. These groups included the barbecue maneuver, Gufoni's maneuver, and sham group in geotropic HC-BPPV. Responsiveness of treatment maneuver was determined by positioning maneuver immediately after each treatment method based on resolves of vertigo and positional nystagmus.

Inclusion Criteria:

• a history of brief episodes of positional vertigo, direction-changing horizontal nystagmus beating toward the uppermost (apogeotropic nystagmus) ear in both the lateral head turning positions,
• no spontaneous nystagmus during upright sitting position
• absence of identifiable central nervous system disorders that could explain the positional vertigo and nystagmus

Exclusion Criteria:

• central positional nystagmus with identifiable CNS lesions that could explain the positional nystagmus