Orthotropic nystagmus in predicting the efficacy of treatment in posterior canal benign paroxysmal positional vertigo
作者单位：Department of NeurologyZhejiang Hospital
会议名称：《2020长三角老年医学高峰论坛、浙江省老年医学学术大会、华东老年医学中心联盟会议、浙江省老年医学联盟会议、浙江省老年病专科联盟会议》
会议日期：2020年
学科分类：1002[医学-临床医学] 100212[医学-眼科学] 100213[医学-耳鼻咽喉科学] 10[医学]
关 键 词：Benign Paroxysmal Positional Vertigo Dix-Hallpike test orthotropic nystagmus BPPV diagnosis and treatment system
摘 要：Objective:To observe the type of nystagmus in each position of posterior semicircular canal benign paroxysmal positional vertigo(BPPV) after treatment with the Epley maneuver and analyze the relationship between the type of nystagmus in the second and third positions of the Epley maneuver and the effect of ***,the role of orthotropic nystagmus in predicting the success of posterior semicircular canal BPPV treatment was ***:Two hundred seventy-six patients diagnosed with posterior semicircular canal BPPV who were admitted from September 2018 to October 2019 to Zhejiang Hospital were *** patients were treated with BPPV diagnosis and treatment system(Epley maneuver).During the treatment,we observed and recorded the type of nystagmus in the second and third positions,including the direction and duration of *** hour after the first treatment,all patients were evaluated by both the Dix-Hallpike and Roll tests to determine whether the treatment was *** difference in the success rate of treatment between different types of nystagmus was compared,and the differences in sensitivity and specificity of orthotropic nystagmus in the second and third positions in predicting the effect of treatment were ***:Among the 234 patients who had successful repositioning for the first time,the proportion of orthotropic nystagmus during the third position of the Epley maneuver was 88.9%,which was significantly higher than 23% in the unsuccessful group(42 cases)(P0.05) The proportion of patients with reversed nystagmus(4.7% vs 33.3%,P 0.05) and no nystagmus(6.4% vs42.9%,P 0.05) was lower in the successful group than in the unsuccessful *** proportion of orthotropic nystagmus during the second position of the Epley maneuver was 50.9%,which was also higher than the 19% in the unsuccessful group(P 0.05).The proportion of reversed nystagmus(13.7% vs 31%,P 0.05) was lower in the successful group than in the unsuccessful