TỈ LỆ CÁC PHÂN NHÓM CHÓNG MẶT TƯ THẾ KỊCH PHÁT LÀNH TÍNH TẠI BỆNH VIỆN QUÂN Y 175

Abstract

Objective: Assess the distribution of BPPV subtypes, we conducted a retrospective study of patients with VNG-diagnosed BPPV. Material and Methods: We reviewed medical records of patients with a diagnosis of BPPV at the Department of Neurology, Military Hospital 175, between March 2022 and December 2023. All patients were evaluated with the videonystagmography (VNG) system during the Dix-Hallpike test and the head roll test were performed. BPPV was confirmed based on diagnostic criteria set by the Committee for Classification of Vestibular Disorders of the Bárány Society by neurologist. Results: A total of 408 patients with VNG-confirmed BPPV, with 71.07 % women and median age of 54,020 ±14,190. Posterior canal - BPPV was found in 66.67% of patients. The horizontal and anterior canals accounted for 28.43% and 4.9%, respectively. Conclusion: BPPV is most seen in individuals aged 45–64 years, with a higher prevalence in females. Among the subtypes, posterior semicircular canal BPPV is the most common, followed by horizontal canal BPPV, while anterior canal BPPV is relatively rare compared to the other two. It is recommended that the Head Roll test be performed alongside the Dix-Hallpike maneuver in all patients with suspected BPPV. Keywords: BPPV, VNG.