ABSTRACT
Objective:To investigate the characteristics of habitual sleeping position and triggered movement in patients with benign paroxysmal positional vertigoï¼BPPVï¼. Methods:The patients with idiopathic tubulitic BPPV who the symptoms were relieved after repositioning were enrolled in this study. The relationship between the side, the tube of otolith detachment and habitual sleeping position and triggered movement was analyzed. Results:â Among the 446 patients, female gender predominatedï¼319 cases, 71.5%ï¼, 41-60 years old group accounted for the highest proportionï¼192 cases, 43.0%ï¼, and posterior semicircular canal patients accounted for the highest proportionï¼289 cases, 64.8%ï¼; â¡The affected side was associated with habitual sleep postionï¼P<0.05, ES=0.392ï¼, ipsilateral ear was more common in left or right decubitus; â¢There were statistically significant differences in the triggered movement in different types of BPPVï¼P<0.05, ES=0.380ï¼, BPPV of multiple semicircular canals. Horizontal semicircular canals and posterior semicircular canals were more likely to induce vertigo and nystagmus. Conclusion:Habitual sleeping position and triggered movement could be collected during the diagnosis of BPPV, to predict the affected side and tube. The combination of Roll test and Dix-Hallpike test is more conducive to accurately distinguish the location of otolith shedding.
