scholarly journals Nystagmus Parameters of Supine Roll Test Correlates With Prognosis After Repositioning Maneuver in Horizontal Semicircular Canal Benign Paroxysmal Positional Vertigo

2021 ◽  
Vol 12 ◽  
Author(s):  
Jia Yu ◽  
Yongzhe Gu ◽  
Guilin Meng ◽  
Xiaosa Zhu ◽  
Wenxie Wang ◽  
...  
Keyword(s):  
Semicircular Canal ◽  
Benign Paroxysmal Positional Vertigo ◽  
Slow Phase ◽  
Horizontal Semicircular Canal ◽  
Positional Vertigo ◽  
Affected Side ◽  
Healthy Side ◽  
Resistant Group ◽  
The Right ◽  
Paroxysmal Positional Vertigo

Background: Positional nystagmus induced by supine roll test is characteristic for diagnosing horizontal semicircular canal benign paroxysmal positional vertigo (HC-BPPV). In this study, we aimed to explore the value of nystagmus parameters in by supine roll test (SRT) as prognostic factors in HC-BPPV.Methods: We retrospectively analyzed the nystagmus parameters of 813 patients diagnosed with HC-BPPV by the SRT model in the SRM-IV system through video nystagmography. Then we used the computer-controlled canalith repositioning procedure (CCRP) mode for treatment. Based on the outcomes, patients were divided into either the cured group or the resistant group. The 1:1 propensity score matching (PSM) was applied to minimize potential selection bias. Then univariable and multivariable analyses were performed to identify the association of nystagmus parameters and the efficacy of CCRP.Results: Among the 813 patients, 99 (12.2%) were classified in the resistant group. The right side of HC-BPPV patients was twice the number of the left side patients (537 vs. 276). PSM is used to pair resistant patients to the cured patients, in which 99 pairs were successfully matched. Results of univariate and multivariate analyses showed that patients in the resistant group have longer latency in the affected side [odds ratio (OR) = 1.231 (1.110–1.366); P < 0.001] and slower slow phase velocity (SPV) in the healthy side [OR = 0.957 (0.917–0.999); P = 0.045].Conclusion: Nystagmus parameters may represent the characteristics of canalith. HC-BPPV patients with a longer latency in the affected side and slower SPV on the healthy side during SRT have a higher risk of HC-BPPV persisting after a single CCRP.

scholarly journals Serum levels of superoxide dismutases in patients with benign paroxysmal positional vertigo

2020 ◽  
Vol 40 (5) ◽  
Author(s):  
Jing Li ◽  
Rui Wu ◽  
Bin Xia ◽  
Xinhua Wang ◽  
Mengzhou Xue
Keyword(s):  
Serum Level ◽  
Semicircular Canal ◽  
Benign Paroxysmal Positional Vertigo ◽  
Serum Levels ◽  
Superoxide Dismutases ◽  
Binary Logistic Regression Analysis ◽  
Horizontal Semicircular Canal ◽  
Positional Vertigo ◽  
Paroxysmal Positional Vertigo

Abstract Objective: To investigate the possible role of superoxide dismutases (SODs) in the development of benign paroxysmal positional vertigo (BPPV) and recurrence events in a 1-year follow-up study. Methods: This was a prospective one-center study. A total of 204 patients with BPPV and 120 age-and sex matched healthy subjects were included. The levels of SOD between patients and control cases were compared. The levels of SOD between posterior semicircular canal (PSC) and horizontal semicircular canal (HSC) were also compared. In the 1-year follow-up, recurrence events were confirmed. The influence of SOD levels on BPPV and recurrent BPPV were performed by binary logistic regression analysis. Results: The serum levels of SOD in patients with BPPV were lower than in those control cases (P<0.001). Levels of SOD did not differ in patients with PSC and HSC (P=0.42). As a categorical variable, for per interquartile range (IQR) increment of serum level of SOD, the unadjusted and adjusted risks of BPPV would be decreased by 72% (with the odds ratio [OR] of 0.28 [95% confidence interval (CI): 0.21–0.37], P<0.001) and 43% (0.57 [0.42–0.69], P<0.001), respectively. Recurrent attacks of BPPV were reported in 50 patients (24.5%). Patients with recurrent BPPV had lower levels of SOD than in patients without (P<0.001). For per IQR increment of serum level of SOD, the unadjusted and adjusted risks of BPPV would be decreased by 51% (with the OR of 0.49 [95% CI: 0.36–0.68], P<0.001) and 24% (0.76 [0.60–0.83], P<0.001), respectively. Conclusion: Reduced serum levels of SOD were associated with higher risk of BPPV and BPPV recurrence events.

Sleep position and laterality of benign paroxysmal positional vertigo

2008 ◽  
Vol 122 (12) ◽  
pp. 1295-1298 ◽  
Author(s):  
S G Korres ◽  
C E Papadakis ◽  
M G Riga ◽  
D G Balatsouras ◽  
D G Dikeos ◽  
...  
Keyword(s):  
Semicircular Canal ◽  
Benign Paroxysmal Positional Vertigo ◽  
Sleep Onset ◽  
The Elderly ◽  
Posterior Semicircular Canal ◽  
Positional Vertigo ◽  
Subjective Preference ◽  
The Right ◽  
A Prospective Study ◽  
Paroxysmal Positional Vertigo

AbstractObjective:The aim of this study was to investigate the frequency of posterior semicircular canal benign paroxysmal positional vertigo in each ear, and to assess the association between the ear affected by benign paroxysmal positional vertigo and the head-lying side during sleep onset. Based on a previous study which used objective methods to prove the preference of the elderly for the right head-lying side during sleep, we hypothesised that a predominance of the same head-lying side in benign paroxysmal positional vertigo patients may affect the pathophysiology of otoconia displacement.Study design:We conducted a prospective study of out-patients with posterior semicircular canal benign paroxysmal positional vertigo, confirmed by a positive Dix–Hallpike test.Methods:One hundred and forty-two patients with posterior semicircular canal benign paroxysmal positional vertigo were interviewed about their past medical history, focusing on factors predisposing to benign paroxysmal positional vertigo. All patients included in the study were able to define a predominant, favourite head-lying side, right or left, during sleep onset.Results:The Dix–Hallpike test was found to be positive on the right side in 82 patients and positive on the left side in 54; six patients were found to be positive bilaterally. During sleep onset, 97 patients habitually laid their head on the right side and the remaining 45 laid their head on the left. The association between the affected ear and the head-lying side during sleep onset was statistically significant (p < 0.001).Conclusions:Our study found a predominance of right-sided benign paroxysmal positional vertigo, a subjective preference amongst patients for a right head-lying position during sleep onset, and an association between the ear affected by benign paroxysmal positional vertigo and the preferred head-lying side during sleep onset. The clinical and therapeutical implications of this observation are discussed.

Use of Vestibular Rehabilitation in the Treatment of Benign Paroxysmal Positional Vertigo

2020 ◽  
Vol 5 (4) ◽  
pp. 917-939
Author(s):  
Richard A. Clendaniel
Keyword(s):  
Semicircular Canal ◽  
Benign Paroxysmal Positional Vertigo ◽  
Semicircular Canals ◽  
Signs And Symptoms ◽  
Positional Nystagmus ◽  
Test Procedures ◽  
Horizontal Semicircular Canal ◽  
Treatment Techniques ◽  
Positional Vertigo ◽  
Paroxysmal Positional Vertigo

Purpose The purposes of this article are (a) to describe the different test procedures for benign paroxysmal positional vertigo (BPPV) and (b) to provide guidance for the treatment of the various forms of BPPV and to discuss the efficacy of the different interventions. Conclusions While BPPV primarily occurs in the posterior semicircular canal, it is also seen in the anterior and horizontal semicircular canals. There are distinctive patterns of nystagmus that help identify the affected semicircular canal and to differentiate between cupulolithiasis and canalithiasis forms of BPPV. There is reasonable evidence to support the different treatments for both posterior and horizontal semicircular canal BPPV. Anterior semicircular canal BPPV is rare, and as a consequence, there is little evidence to support the various treatment techniques. Finally, while BPPV is generally easy to identify, there are central causes of positional nystagmus with and without vertigo, which can complicate the diagnosis of BPPV. The signs and symptoms of BPPV are contrasted with those of the central causes of positional nystagmus.

BENIGN PAROXYSMAL POSITIONAL VERTIGO OF HORIZONTAL SEMICIRCULAR CANAL: DIAGNOSTICS AND TREATMENT

2017 ◽  
Vol 86 (1) ◽  
pp. 60-67
Author(s):  
N. L. Kunel’skaya ◽  
◽  
E. V. Baybakova ◽  
M. A. Chugunova ◽  
E. S. Yanyushkina ◽  
...  
Keyword(s):  
Semicircular Canal ◽  
Benign Paroxysmal Positional Vertigo ◽  
Horizontal Semicircular Canal ◽  
Positional Vertigo ◽  
Paroxysmal Positional Vertigo
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