Comparisons of Supine Roll Test and Alternative Positional Tests in HC-BPPV Lateralization  

作　　者：Geeta KOJU Dan BING Liang-qiang ZHOU Zhong-yao MAO Yan-ling TAO Qing-guo CHEN Jin CHEN Yun LIU Ting TONG Han-qi CHU 

机构地区：[1]Department of Otolaryngology-Head and Neck Surgery,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan 430030,China

出　　处：《Current Medical Science》2022年第3期613-619,共7页当代医学科学（英文）

基　　金：the National Natural Science Foundation of China(No.81500794,No.81271078 and No.81500791);Scientific Research Project of Hubei Province Health and Family Planning(No.WJ2015MB062).

摘　　要：Objective The purpose of the study was to evaluate the efficiency of the supine roll test(SRT)and alternative positional tests(APTs)including the bow and lean test(BLT),pseudo-spontaneous nystagmus(PSN),and lying down nystagmus(LDN)to identify the affected side in horizontal canal benign paroxysmal positional vertigo(HC-BPPV).Methods In our prospective study,we performed a testing profile(PSN,BLT,LDN,SRT)on 59 HC-BPPV patients using videonystagmography.We compared the accuracy and sensitivity of these tests in HC-BPPV lateralization.Data from 30 healthy patients were collected as the control group.Results When performing positional tests,the elicited nystagmus coinciding with Ewald’s second law was defined as a“positive response”.In 44 patients with geotropic nystagmus,the rates of positive response in LDN,PSN,and BLT were 22/44(50%),19/44(43%),and 18/44(41%),respectively,while in 15 patients with apogeotropic nystagmus,the positive response rates of these three tests were 10/15(66.7%),9/15(60%),and 4/15(27.00%),respectively.The sensitivity of LDN(54.38%)was higher than that of PSN(47.37%)and BLT(38.60%)but lower than that of SRT(89.47%).Notably,the accuracy rate of PSN(71.8%)was higher than that of the other APTs.In 6 patients with symmetrical nysgtamus during the roll test,5 patients showed a positive response in both LDN and BLT(83.34%),whereas 4 patients showed a positive response in PSN(66.67%).Conclusion All positional tests are helpful for determining the affected side of HC-BPPV,but SRT carries the highest accuracy of lateralization followed by PSN.

关 键 词：horizontal canal benign paroxysmal positional vertigo pseudo spontaneous nystagmus bow and lean test lying down nystagmus supine roll test 

分 类 号：R76[医药卫生—耳鼻咽喉科]