Semont手法复位中的眼震变化与疗效的关系

Relationship between nystagmus and effectiveness in Semont maneuver for patients with benign paroxysmal positional vertigo

2015年1—10月对眩晕门诊的97例单侧后半规管良性阵发性位置性眩晕患者，行Semont手法复位治疗。69例治疗成功（71％）；Semont手法复位第3步时的眼震类型为同向眼震者45例、无眼震者42例和反向眼震者10例，3者复位的成功率分别为93％（42／45）、64％（27／42）和0／10，差异有统计学意义（ P＜0．05）。69例复位成功者与28复位失败者 Dix－Hallpike 诱发试验（DHT）的眼震潜伏期分别为3．5（2．6，5．0）和3．8（2．4，5．0）s、持续时间分别为16．3（12．0，25．3）和15．9（13．8，22．2）s，差异均无统计学意义（均P＞0．05）。 Semont第3步出现同向眼震预示复位成功，反向眼震预示复位失败，无眼震不一定预示复位失败。提示DHT时的眼震潜伏期、持续时间与疗效无关。

Semont maneuver was performed in 97 patients with benign paroxysmal positional vertigo involving the posterior semicircular canal.Among 97 patients the Semont maneuver was successful in 69 cases and failed in 28 cases.There were three nystagmus patterns during the third position of the Semont maneuver：orthotropic nystagmus （n=45）, no nystagmus （n=42） and reversed nystagmus （n=10）;and the effective rates in three groups were 93%, 64% and 0%, respectively （P〈0.05）.The duration of latency period and nystagmus status in Dix-Hallpike test has no effect on repositioning efficacy （ P〉0.05） .