Background:Benign paroxysmal positional vertigo(BPPV)is characterized by vertigo lasting from seconds to minutes,induced by head movements.Objectives:Our study aimed to investigate the clinical significance of the cal...Background:Benign paroxysmal positional vertigo(BPPV)is characterized by vertigo lasting from seconds to minutes,induced by head movements.Objectives:Our study aimed to investigate the clinical significance of the caloric vestibular and video head-impulse tests(vHIT)diagnosing the disorder.Methods:68 patients suffering from posterior canal BPPV(25 male,43 females,mean age±SD,54.5±13.2 years)and 56 patients with a normal functioning vestibular system as control were investigated.Bithermal caloric test and vHIT was performed during the same medical check-up.Canal paresis(CP%),gain(GA)and asymmetry(GA%)parameters were calculated.Results:The Dix-Hallpike manoeuvre was only positive in 4%of this population.The CP%parameter was only pathologic in two patients,and there was no significant difference between control and BPPV patients(p=0.76).The GA value was never under 0.8 in this population,but GA%was abnormal in 63.2%.A significant difference comparing the GA%values to the control group was seen(p=0.034).There was no correlation detected between the CP%and GA%values in BPPV.Regarding the GA%value,61%sensitivity and 76%specificity was seen.Conclusion:The Dix-Hallpike manoeuvre was not often positive in the non-acute phase of BPPV;therefore,objective testing is essential.The caloric test does not have clinical significance in BPPV,but vHIT can be helpful based on the GA%parameter。展开更多
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...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.展开更多
Introduction: The absence of vertigo during the caloric test, despite a robust response, has been suggested to represent a central vestibular system phenomenon. The purpose of this investigation was to determine the p...Introduction: The absence of vertigo during the caloric test, despite a robust response, has been suggested to represent a central vestibular system phenomenon. The purpose of this investigation was to determine the prevalence of absent caloric-induced vertigo perception in an unselected group of patients and to assess possible predicting variables.Methods: Prospective investigation of 92 unselected patients who underwent caloric testing. Inclusion criteria were that each patient generate a maximum slow phase velocity(maxSPV) > 15 deg/sec and a caloric asymmetry of≤10%. Following the caloric, patients were asked, "Did you have any sensation of motion?"Results: Results showed 75% of patients reported motion with a mean age of 56.51 years compared to a mean age of 66.55 in the 25% of patients reporting an absence of motion. A logistic regression was performed and the overall model was statistically significant accounting for 29% of the variance in caloric perception. The significant predictor variables were patient age and maxSPV of the caloric response. The effect size for both variables was small with an odds ratio of.9 for maxSPV and 1.06 for age.Conclusions: The current investigation showed that both age and maxSPV of the caloric response were significant predictors of vertigo perception during the caloric exam. However, the association between age and caloric perception is not conclusive. Although there is evidence to suggest that these findings represent age-related changes in the central processing of vestibular system stimulation, there are additional unmeasured factors that influence the perception of caloric-induced vertigo.展开更多
目的分析儿童常见周围性眩晕的视频头脉冲试验(video head impulse test,vHIT)结果并探讨vHIT的诊断价值。方法回顾性选取2020年1月至2022年3月就诊于苏州大学附属第二医院眩晕诊治中心的儿童常见周围性眩晕患儿78例,根据年龄将患儿分为...目的分析儿童常见周围性眩晕的视频头脉冲试验(video head impulse test,vHIT)结果并探讨vHIT的诊断价值。方法回顾性选取2020年1月至2022年3月就诊于苏州大学附属第二医院眩晕诊治中心的儿童常见周围性眩晕患儿78例,根据年龄将患儿分为≤10岁组26例和>10岁组52例,分析其vHIT检查结果。结果78例周围性眩晕患儿中儿童良性阵发性眩晕(benign paroxysmal vertigo of childhood,BPVC)28例,前庭性偏头痛(vestibular mi⁃graine,VM)20例,前庭神经炎(vestibular neuritis,VN)15例,突发性聋伴眩晕(sudden deafness with vertigo,SD)8例,梅尼埃病(Meniere's disease,MD)7例。vHIT检查结果异常47例,其中BPVC14例,VM12例,VN14例,SD3例,MD4例。儿童vHIT检查中出现伪迹的概率更高,最常见的伪迹类型为眨眼,高增益值及追踪震荡,≤10岁组vHIT检查出现伪迹多于>10岁组,差异有统计学意义(P<0.001)。结论儿童周围性眩晕最常见的病因主要为BPVC及VM,vHIT在儿童眩晕的诊断中具有很高的特异性,但出现伪迹的概率较高,检查过程中需注意甄别并防范。展开更多
目的探讨传统滚转试验(supine roll test,SRT)、低头-抬头试验(bow and lean test,BLT)和快速轴位滚转试验(rapid axial roll test,RART)在水平半规管良性阵发性位置性眩晕(horizontal semicircular canal benign paroxysmal positional...目的探讨传统滚转试验(supine roll test,SRT)、低头-抬头试验(bow and lean test,BLT)和快速轴位滚转试验(rapid axial roll test,RART)在水平半规管良性阵发性位置性眩晕(horizontal semicircular canal benign paroxysmal positional vertigo,HSC-BPPV)责任半规管判定中的临床价值。方法选取2021年3月至2022年4月西安交通大学第一附属医院HSC-BPPV患者328例,根据不同的变位试验分为SRT组(113例)、BLT+SRT组(104例)和RART+SRT组(111例),BLT+SRT组和RART+SRT组分为2个阶段,第一阶段进行BLT或RART,第二阶段进行SRT。比较不同组别眼震引出率,采用Kappa一致性检验比较BLT/RART与SRT眼震引出结果的一致性。结果328例患者中,男95例,女233例,年龄18~86岁,平均(55.5±13.8)岁。RART+SRT组眼震引出率高于BLT+SRT组和SRT组(94.59%比81.73%比74.34%);RART+SRT组第一阶段眼震引出率、第二阶段SRT眼震引出率、责任半规管判定一致比例均高于BLT+SRT组,差异均有统计学意义(P<0.05);对责任半规管判定一致的患者进行复位治疗,BLT+SRT组痊愈率为92.59%(50/54),RART+SRT组为97.96%(96/98),两组痊愈率的比较,差异无统计学意义(χ^(2)=2.645,P=0.187)。Kappa一致性检验结果显示,RART与SRT在眼震引出率方面具有较好的一致性,一致率达94.59%(Kappa=0.638,P<0.001)。结论RART具有加速度大、安全性好、眼震引出率高的特点,能够有效诱发出HSC-BPPV特征性眼震,提高半规管定侧定位的准确性,为HSC-BPPV的临床实践提供更优化的检查方案,值得在临床中广泛推广。展开更多
急性中枢性头晕/眩晕通常为危急重症,早期明确诊断并有效治疗在急诊诊疗中至关重要。头脉冲-眼震-眼偏斜检查法(Head Impulse-Nystagmus-Test of Skew, H.I.N.T.S)是一项可有效鉴别中枢性与外周性头晕/眩晕的床旁检查法。为更好地了解H....急性中枢性头晕/眩晕通常为危急重症,早期明确诊断并有效治疗在急诊诊疗中至关重要。头脉冲-眼震-眼偏斜检查法(Head Impulse-Nystagmus-Test of Skew, H.I.N.T.S)是一项可有效鉴别中枢性与外周性头晕/眩晕的床旁检查法。为更好地了解H.I.N.T.S检查法,我们回顾了近年来国内外大量相关文献,并予以综述,同时对视眼动检查技术未来在我国急诊的临床应用进行展望。展开更多
基金supported by EFOP-3.6.3-VEKOP-16-2017-00009 Project and by theÚNKP-20-4-I New National Excellence Program of The Ministry for Innovation and Technology from the Source of The National Research,Development and Innovation Fund.
文摘Background:Benign paroxysmal positional vertigo(BPPV)is characterized by vertigo lasting from seconds to minutes,induced by head movements.Objectives:Our study aimed to investigate the clinical significance of the caloric vestibular and video head-impulse tests(vHIT)diagnosing the disorder.Methods:68 patients suffering from posterior canal BPPV(25 male,43 females,mean age±SD,54.5±13.2 years)and 56 patients with a normal functioning vestibular system as control were investigated.Bithermal caloric test and vHIT was performed during the same medical check-up.Canal paresis(CP%),gain(GA)and asymmetry(GA%)parameters were calculated.Results:The Dix-Hallpike manoeuvre was only positive in 4%of this population.The CP%parameter was only pathologic in two patients,and there was no significant difference between control and BPPV patients(p=0.76).The GA value was never under 0.8 in this population,but GA%was abnormal in 63.2%.A significant difference comparing the GA%values to the control group was seen(p=0.034).There was no correlation detected between the CP%and GA%values in BPPV.Regarding the GA%value,61%sensitivity and 76%specificity was seen.Conclusion:The Dix-Hallpike manoeuvre was not often positive in the non-acute phase of BPPV;therefore,objective testing is essential.The caloric test does not have clinical significance in BPPV,but vHIT can be helpful based on the GA%parameter。
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).
文摘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.
文摘Introduction: The absence of vertigo during the caloric test, despite a robust response, has been suggested to represent a central vestibular system phenomenon. The purpose of this investigation was to determine the prevalence of absent caloric-induced vertigo perception in an unselected group of patients and to assess possible predicting variables.Methods: Prospective investigation of 92 unselected patients who underwent caloric testing. Inclusion criteria were that each patient generate a maximum slow phase velocity(maxSPV) > 15 deg/sec and a caloric asymmetry of≤10%. Following the caloric, patients were asked, "Did you have any sensation of motion?"Results: Results showed 75% of patients reported motion with a mean age of 56.51 years compared to a mean age of 66.55 in the 25% of patients reporting an absence of motion. A logistic regression was performed and the overall model was statistically significant accounting for 29% of the variance in caloric perception. The significant predictor variables were patient age and maxSPV of the caloric response. The effect size for both variables was small with an odds ratio of.9 for maxSPV and 1.06 for age.Conclusions: The current investigation showed that both age and maxSPV of the caloric response were significant predictors of vertigo perception during the caloric exam. However, the association between age and caloric perception is not conclusive. Although there is evidence to suggest that these findings represent age-related changes in the central processing of vestibular system stimulation, there are additional unmeasured factors that influence the perception of caloric-induced vertigo.
文摘目的分析儿童常见周围性眩晕的视频头脉冲试验(video head impulse test,vHIT)结果并探讨vHIT的诊断价值。方法回顾性选取2020年1月至2022年3月就诊于苏州大学附属第二医院眩晕诊治中心的儿童常见周围性眩晕患儿78例,根据年龄将患儿分为≤10岁组26例和>10岁组52例,分析其vHIT检查结果。结果78例周围性眩晕患儿中儿童良性阵发性眩晕(benign paroxysmal vertigo of childhood,BPVC)28例,前庭性偏头痛(vestibular mi⁃graine,VM)20例,前庭神经炎(vestibular neuritis,VN)15例,突发性聋伴眩晕(sudden deafness with vertigo,SD)8例,梅尼埃病(Meniere's disease,MD)7例。vHIT检查结果异常47例,其中BPVC14例,VM12例,VN14例,SD3例,MD4例。儿童vHIT检查中出现伪迹的概率更高,最常见的伪迹类型为眨眼,高增益值及追踪震荡,≤10岁组vHIT检查出现伪迹多于>10岁组,差异有统计学意义(P<0.001)。结论儿童周围性眩晕最常见的病因主要为BPVC及VM,vHIT在儿童眩晕的诊断中具有很高的特异性,但出现伪迹的概率较高,检查过程中需注意甄别并防范。
文摘目的探讨传统滚转试验(supine roll test,SRT)、低头-抬头试验(bow and lean test,BLT)和快速轴位滚转试验(rapid axial roll test,RART)在水平半规管良性阵发性位置性眩晕(horizontal semicircular canal benign paroxysmal positional vertigo,HSC-BPPV)责任半规管判定中的临床价值。方法选取2021年3月至2022年4月西安交通大学第一附属医院HSC-BPPV患者328例,根据不同的变位试验分为SRT组(113例)、BLT+SRT组(104例)和RART+SRT组(111例),BLT+SRT组和RART+SRT组分为2个阶段,第一阶段进行BLT或RART,第二阶段进行SRT。比较不同组别眼震引出率,采用Kappa一致性检验比较BLT/RART与SRT眼震引出结果的一致性。结果328例患者中,男95例,女233例,年龄18~86岁,平均(55.5±13.8)岁。RART+SRT组眼震引出率高于BLT+SRT组和SRT组(94.59%比81.73%比74.34%);RART+SRT组第一阶段眼震引出率、第二阶段SRT眼震引出率、责任半规管判定一致比例均高于BLT+SRT组,差异均有统计学意义(P<0.05);对责任半规管判定一致的患者进行复位治疗,BLT+SRT组痊愈率为92.59%(50/54),RART+SRT组为97.96%(96/98),两组痊愈率的比较,差异无统计学意义(χ^(2)=2.645,P=0.187)。Kappa一致性检验结果显示,RART与SRT在眼震引出率方面具有较好的一致性,一致率达94.59%(Kappa=0.638,P<0.001)。结论RART具有加速度大、安全性好、眼震引出率高的特点,能够有效诱发出HSC-BPPV特征性眼震,提高半规管定侧定位的准确性,为HSC-BPPV的临床实践提供更优化的检查方案,值得在临床中广泛推广。
文摘急性中枢性头晕/眩晕通常为危急重症,早期明确诊断并有效治疗在急诊诊疗中至关重要。头脉冲-眼震-眼偏斜检查法(Head Impulse-Nystagmus-Test of Skew, H.I.N.T.S)是一项可有效鉴别中枢性与外周性头晕/眩晕的床旁检查法。为更好地了解H.I.N.T.S检查法,我们回顾了近年来国内外大量相关文献,并予以综述,同时对视眼动检查技术未来在我国急诊的临床应用进行展望。
