MỘT SỐ YẾU TỐ NGUY CƠ GÂY TÁI PHÁT VÀ ĐÁNH GIÁ NGHIỆM PHÁP DIX- HALLPIKE TRONG CHẨN ĐOÁN CHÓNG MẶT TƯ THẾ KỊCH PHÁT LÀNH TÍNH

Abstract

Objective: To investigate risk factors for recurrence and evaluate the positive rate of the Dix-Hallpike maneuver in the diagnosis of benign paroxysmal positional vertigo (BPPV). Subjects and Methods: A cross-sectional descriptive study was conducted on 80 patients diagnosed with BPPV and treated at the Department of Neurology, Hoan My Cuu Long General Hospital, from March 2023 to September 2024. Results: The mean age of patients was 65.35 ± 11 years; females accounted for 80%. A history of recurrence was noted in 75% of patients. BMI score was 22.7 ± 2.6 kg/m². Osteoporosis was identified as a significant risk factor for BPPV recurrence (p < 0.001; OR = 5.7, 95% CI: 2.1–15.7). Potential risk factors included cardiovascular disease (p = 0.4; OR = 1.64, 95% CI: 0.49–5.5), type 2 diabetes mellitus (p = 0.39; OR = 1.59, 95% CI: 0.54–4.7), dyslipidemia (p = 0.1; OR = 2.1, 95% CI: 0.84–5.4), migraine (p = 0.2; OR = 2.1, 95% CI: 0.63–7.33), and head trauma (p = 0.06; OR = 4.2, 95% CI: 0.86–20.1). The Dix-Hallpike maneuver yielded a positive result in 73.8% of patients on the first attempt, with an additional 11.2% testing positive on the second attempt. Conclusion: BPPV was more common in females (80%), with 63.8% of patients experiencing a history of recurrence. Osteoporosis was identified as a statistically significant risk factor for recurrence, whereas cardiovascular disease, diabetes mellitus, hyperlipidemia, and migraine showed only a trend toward association. The Dix-Hallpike maneuver demonstrated a high positive rate (85%) and should be performed at least twice