Zhang Hui, Hu Jiajia, Wang Meng, Zhai Lihong, Lyu Xinyu, Jin Zhanguo
Vrtigo Clinic/Research Center of Aerospace Medicine，Air Force Medical Center，PLA，Beijing，100142，China.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2025 Apr;39(4):357-361. doi: 10.13201/j.issn.2096-7993.2025.04.012.
To investigate the effects of the Epley and Semont procedures with varying lateral angles of the head on posterior semicircular canal benign paroxysmal positional vertigo （PC-BPPV）. A total of 115 patients with unilateral PC-BPPV were randomly divided into five groups: Epley group, Semont group, Semont+10° group, Semont+20° group, and Semont+30° group, with 23 patients in each group. Corresponding reduction treatments were performed. The total effective rates for the Epley group, Semont group, Semont+10° group, Semont+20° group, and Semont+30° group were 95.7% （22/23）, 4.3% （1/23）, 30.4% （7/23）, 52.2% （12/23）, and 87.0% （20/23） respectively. The inefficiencies were 4.3% （1/23）, 95.7% （22/23）, 69.6% （16/23）, 47.8% （11/23）, and 13.0% （3/23）. Statistically significant differences were observed in the total effective rates among the five groups （χ²=54.11, <0.01）. The total effective rates in the Semont group, Semont+10° group, and Semont+20° group were significantly different from that of the Epley group （<0.01）, while no statistically significant difference was found between the Semont+30° group and the Epley group （= 0.608>0.012 5）. Among the four Semont methods with different lateral lying angles, the total effective rate of reduction treatment increased with the elevation of the lateral lying angle on the affected side. The efficacy of the Semont+30° group in treating PC-BPPV was not significantly different from the Epley group's reduction effect, which was markedly superior to that of the other four Semont methods at different angles. Therefore, the Semont+30° reduction technique is recommended for the treatment of PC-BPPV.
为探讨头部不同侧倾角度的Epley法和Semont法对半规管良性阵发性位置性眩晕（PC-BPPV）的影响。将115例单侧PC-BPPV患者随机分为五组：Epley组、Semont组、Semont+10°组、Semont+20°组和Semont+30°组，每组23例。进行相应的复位治疗。Epley组、Semont组、Semont+10°组、Semont+20°组和Semont+30°组的总有效率分别为95.7%（22/23）、4.3%（1/23）、30.4%（7/23）、52.2%（12/23）和87.0%（20/23）。无效率分别为4.3%（1/23）、95.7%（22/23）、69.6%（16/23）、47.8%（11/23）和13.0%（3/23）。五组总有效率差异有统计学意义（χ²=54.11，<0.01）。Semont组、Semont+10°组和Semont+20°组的总有效率与Epley组相比差异有统计学意义（<0.01），而Semont+30°组与Epley组相比差异无统计学意义（= 0.608>0.012 5）。在四种不同患侧卧位角度的Semont法中，复位治疗的总有效率随患侧卧位角度的升高而增加。Semont+30°组治疗PC-BPPV的疗效与Epley组的复位效果差异无统计学意义，明显优于其他四种不同角度的Semont法。因此，推荐采用Semont+30°复位技术治疗PC-BPPV。
