Pseudo-spontaneous nystagmus in patients with lateral canal benign paroxysmal positional vertigo

2021 ◽  
pp. 1-5
Author(s):  
Sertac Yetiser ◽  
Dilay Ince
Keyword(s):  
Benign Paroxysmal Positional Vertigo ◽  
Spontaneous Nystagmus ◽  
Lateral Canal ◽  
Positional Vertigo ◽  
Paroxysmal Positional Vertigo

scholarly journals Pseudo-spontaneous nystagmus in lateral semicircular canal benign paroxysmal positional vertigo: Correlation with bow and lean test in a pitch plane

PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0242580
Author(s):  
Hyun-Jin Lee ◽  
Seong Ki Ahn ◽  
Chae Dong Yim ◽  
Dae Hwan Kim ◽  
Dong Gu Hur
Keyword(s):  
Treatment Outcome ◽  
Semicircular Canal ◽  
Benign Paroxysmal Positional Vertigo ◽  
Spontaneous Nystagmus ◽  
Sitting Position ◽  
Lateral Semicircular Canal ◽  
Video Oculography ◽  
Positional Vertigo ◽  
End Of Treatment ◽  
Paroxysmal Positional Vertigo

Objectives We investigated the incidence and characteristics of pseudo-spontaneous nystagmus (PSN) in benign paroxysmal positional vertigo involving the lateral semicircular canal (LC-BPPV) and evaluated the correlation between PSN and the bow and lean test. Methods We examined nystagmus in the sitting position using video-oculography goggles in 131 LC-BPPV patients. The positioning test and bow and lean test were also performed. Patients were divided into canalolithiasis and cupulolithiasis groups according to the character of nystagmus. In each group, the incidence and direction of PSN, correlation with the bow and lean test, and treatment outcome were analyzed. Results PSN was observed in 25 cases (19.1%) in LC-BPPV patients, 7 of which were canalolithiasis and 18 of which were cupulolithiasis (p = 0.098). Of the 25 patients with PSN, 21 (84%) exhibited nystagmus consistent with the lean test whereas 4 (16%) exhibited nystagmus consistent with the bow test. In patients with PSN, nystagmus was observed in the bow and lean test in all cases (23/23), but in patients without PSN, no nystagmus was observed in 13 cases (13/87) in the bow and lean test (p = 0.048). The number of barbecue maneuvers performed until the end of treatment was 1.4 ± 0.7 in patients with PSN and 1.4 ± 0.9 in those without PSN (p = 0.976). Conclusion We identified PSN in patients with LC-BPPV irrelevant of subtype. Moreover, all patients with PSN showed nystagmus in the bow and lean test. The direction of PSN was mostly consistent with that of the lean test (21/25, 84%). The presence of PSN was not related to the treatment outcome in this study.

scholarly journals Efficacy of Epley maneuver in treatment of benign paroxysmal positional vertigo of the posterior semicircular canal

2012 ◽  
Vol 69 (8) ◽  
pp. 669-674 ◽  
Author(s):  
Snezana Babac ◽  
Nenad Arsovic
Keyword(s):  
Success Rate ◽  
Semicircular Canal ◽  
Benign Paroxysmal Positional Vertigo ◽  
Spontaneous Nystagmus ◽  
Posterior Semicircular Canal ◽  
Duration Of Symptoms ◽  
Positional Vertigo ◽  
Epley Maneuver ◽  
Repositioning Maneuver ◽  
Paroxysmal Positional Vertigo

Background/Aim. Benign paroxysmal positional vertigo is one of the most frequent peripheral vestibular system disorders. The aim of this study was to examine the efficacy of the Epley maneuver in treating benign paroxysmal positional vertigo of the posterior semicircular canal (p- BPPV) and to discover possible causes of failure. Methods. This prospective study included 75 patients. In all the cases medical history showed and the positioning Dix-Hallpike test confirmed the diagnosis of p-BPPV. We also performed clinical ENT examination, searching for spontaneous nystagmus, vestibulospinal tests, caloric test, and audiometry. All the patients were treated by the modified Epley canalith repositioning maneuver. The patients were followed up at the intervals of seven and, fourteen days, and one, tree, and six months and one year. The maneuver was repeated if vertigo and nystagmus on control positioning test persisted. The transition from positive into negative Dix Hallpike test after one or two Epley maneuver was considered as success in treatment. Results. After the initial Epley maneuver the recovery rate was 90.7%, and after the second 96%. In three (4%) patients with secondary p-BPPV, symptoms did not cease even after the second repositioning maneuver. The etiology of p-BPPV had a significant effect on the maneuver?s success rate (p < 0.01), whereas duration of symptoms, age and gender had no effect (p > 0.05). After a successful treatment 11 (14.66%) patients had recurrent attack of BPPV during the first year. Conclusion. The Epley maneuver is very successful repositioning procedure in treating p- BPPV. The patients with idiopathic form p-BPPV showed higher success rate with Epley maneuver than those with secondary p-BPPV.

Benign Paroxysmal Positional Vertigo Secondary to Mild Head Trauma

2016 ◽  
Vol 126 (1) ◽  
pp. 54-60 ◽  
Author(s):  
Dimitrios G. Balatsouras ◽  
George Koukoutsis ◽  
Andreas Aspris ◽  
Alexandros Fassolis ◽  
Antonis Moukos ◽  
...  
Keyword(s):  
Head Trauma ◽  
Medical Records ◽  
Benign Paroxysmal Positional Vertigo ◽  
Spontaneous Nystagmus ◽  
Control Group ◽  
Imaging Evaluation ◽  
Canal Paresis ◽  
Positional Vertigo ◽  
Anterior Semicircular Canal ◽  
Paroxysmal Positional Vertigo

Objectives: We studied the clinical characteristics, nystagmographic findings, and treatment outcome of a group of patients with benign paroxysmal positional vertigo (BPPV) secondary to mild head trauma and compared them with a group of patients with idiopathic BPPV. Methods: The medical records of 33 patients with BPPV associated with mild head trauma were reviewed. Data of a complete otolaryngological, audiological, neurotologic, and imaging evaluation were available for all patients. Three hundred and twenty patients with idiopathic BPPV were used as a control group. Results: The patients with BPPV secondary to mild head trauma presented the following features, in which they differed from the patients with idiopathic BPPV: (1) lower mean age, with more intense symptoms; (2) increased rate of horizontal and anterior semicircular canal involvement and frequent multiple canal and bilateral involvement; (3) greater incidence of canal paresis and presence of spontaneous nystagmus; (4) poorer treatment results, attributed mainly to coexisting canal paresis in many patients, and higher rate of recurrence. Conclusions: Benign paroxysmal positional vertigo associated with mild head trauma differs from idiopathic BPPV in terms of several epidemiological and clinical features; it responds less effectively to treatment and is prone to recurrence.

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