![]() A symptom reduction in patients with BPPV with posterior canal involvement is 3.3–107.7 times more likely following a canalith repositioning procedure (CRP) than under control conditions 1, 2, 3, 4. Similar content being viewed by othersīenign paroxysmal positional vertigo (BPPV) can be treated by a series of rotational head movements geometrically aligned with the affected semicircular canal. A guiding device based on head monitoring providing real-time auditory feedback may increase the self-administered CRP success rates in treating benign paroxysmal positional vertigo. Real-time feedback on head rotation angles induced more appropriate movements in the Epley and Barbeque roll maneuvers. The treatment success rates after 1 h were 71.4% and 100% for the Epley and Barbeque roll maneuvers, respectively. A learning effect was found in steps 4 and 5 of the Barbeque roll maneuver but not in the Epley maneuver. For all the Epley and Barbeque roll maneuvers steps, the absolute errors were smaller for IMU- than for EDU-CRPs, with significant differences in steps 2–4 and 3–6 of the Epley and Barbeque roll maneuvers, respectively. ![]() For BPPV participants, treatment success was assessed based on the presence or absence of nystagmus, vertigo, and dizziness. Differences in target angles based on the American Academy of Otolaryngology-Head and Neck Surgery guidelines were considered errors. IMU-CRP, respectively) twice, and head rotation accuracies were compared. Participants conducted the Epley and Barbeque roll maneuvers without and with auditory guidance (EDU-CRP vs. This single-institution prospective, comparative effectiveness study examined 19 participants without active vertigo or prior knowledge of benign paroxysmal positional vertigo and CRP. A pilot validation was also performed by analyzing the treatment success rate of IMU-CRP in patients with BPPV. ![]() Our study aimed to validate the feasibility of an inertial measurement unit sensor-based CRP (IMU-CRP) by analyzing the differences in accuracy in the rotational angles, comparing them with education-based conventional CRP (EDU-CRP). Similar results were obtained for the Barbeque maneuver: mean errors were 9.2°–13.0° by the specialists while they were significantly larger (22.9°–28.6°) when self-administered. Specialists-guided Epley maneuver reportedly had mean errors of 13.7°–24.4° while they were significantly larger (40.0°–51.5°) when self-administered. Performing an accurate canalith repositioning procedure (CRP) is important for treating benign paroxysmal positional vertigo, because inadequate rotational head angles can result in ineffective otolith mobilization and consequent treatment failure.
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