Effect of the course of posterior semicircular canal benign paroxysmal positional vertigo on residual symptoms after successful canalith repositioning procedure

• Published in: Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery head, and neck surgery, 2021-11, Vol.35 (11), p.976-980
• Main Authors: Gu, Lixin, Chen, Jianyong, Zhang, Qin, Shen, Jiali, Ma, Xiaobao, Wang, Wei, Wang, Lu, Shen, Min, Chen, Xiangping, Yang, Jun
• Format: Article
• Language: Chinese
• Subjects: Benign Paroxysmal Positional Vertigo - therapy; Disease Progression; Humans; Patient Positioning - methods; Semicircular Canals
• ISSN: 2096-7993
• DOI: 10.13201/j.issn.2096-7993.2021.11.004

To investigate the effect of the course of posterior semicircular canal benign paroxysmal positional vertigo（BPPV） on residual symptoms after successful canalith repositioning procedure（CRP）. A total of 56 patients with posterior semicircular canal BPPV were selected from July 2020 to March 2021. They were divided into the short course group and the long course group according to the duration of disease from symptom onset to CRP treatment. All patients were treated with mechanical Epley repositioning procedure with rotary chair assistance. After successful repositioning treatment, they were followed up for seven to ten days. All patients were assessed using the vertigo disorder scale （DHI） before and after treatment,the differences of each dimension score and total score of DHI before and after successful CRP were compared between these two groups. ① After successful CRP, in patients with mild residual symptoms, the ratio between short course group and long course group were 68.6% and 31.4%, respectively. Whi