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V Marcelli
The objective was to evaluate nystagmus intensity and direction (NID) during bow and lean test (BLT) in subjects suffering from idiopathic lateral semicircular canal benign paroxysmal positional vertigo (LSC-BPPV), in order to differentiate between the geotropic and the apogeotropic form and to determine the affected ear before using classic diagnostic procedures. The BLT was performed in 32 subjects affected by LSC-BPPV. "Nystagmus intensity" evaluation allows distinguishing the geotropic variant from the apogeotropic one, while the "nystagmus direction" allows identification of the side...
December 2016: Acta Otorhinolaryngologica Italica
Francisco Carlos Zuma e Maia, Pedro Luiz Mangabeira Albernaz, Renato Valério Cal
The objective of the present study is to analyze the quantitative vestibulo-ocular responses in a group of patients with benign paroxysmal positional vertigo (BPPV) canalolithiasis and compare these data with the data of the tridimensional biomechanical model. This study was conducted on 70 patients that presented idiopathic posterior semicircular canal canalolithiasis. The diagnosis was obtained by Dix-Hallpike maneuvers recorded by videonystagmograph. The present study demonstrates that there is a significant correlation between the intensity of the nystagmus and its latency in cases of BPPV-idiopathic posterior semicircular canal canalolithiasis type...
April 20, 2016: Audiology Research
Hiroaki Ichijo
CONCLUSION: Benign paroxysmal positional vertigo (BPPV) is strongly related to sleep. This study proposes a micro-otoconia accumulation theory in which the pathological debris is an aggregate of micro-otoconia over a long time period, and which begins to slide by its own weight during sleep. OBJECTIVES: To examine the onset time of idiopathic BPPV and to investigate its etiology. METHOD: Patients (n = 351) were classified as posterior canalolithiasis (PC), horizontal canalolithiasis (HC), and horizontal heavy cupula (HHC) according to nystagmus findings...
February 2017: Acta Oto-laryngologica
Masanori Yatomi, Yasuo Ogawa, Mamoru Suzuki, Koji Otsuka, Taro Inagaki, Ujimoto Konomi, Kiyoaki Tsukahara
CONCLUSIONS: The co-existence of cupulolithiasis and canalolithiasis might be a possible mechanism for the spontaneous inversion of positional nystagmus. OBJECTIVE: To investigate the mechanism of spontaneous inversion of nystagmus direction without a positional change in experimental models of co-existing cupulolithiasis and canalolithiasis. METHODS: Co-existing canalolithiasis and cupulolithiasis models were prepared using the bullfrog posterior semicircular canal (PSC)...
January 2017: Acta Oto-laryngologica
Pia Michael, Carolina Estibaliz Oliva, Marcia Nuñez, Cristian Barraza, Juan Pablo Faúndez, Hayo A Breinbauer
INTRODUCTION: Benign paroxysmal positional vertigo (BPPV) secondary to canalolithiasis of the posterior semicircular canal is perhaps the most frequent cause of vertigo and dizziness. One of its properties is a high response rate to canalith repositioning maneuvers. However, delays in the diagnosis and treatment of this entity can range from days to years, depending on the setting. Here, we present an abbreviated variation of the Dix-Hallpike maneuver, which can be used to diagnose this disease...
2016: Frontiers in Neurology
Chang-Hee Kim, Jung Eun Shin, Young Soo Yang, Donghyuk Im
OBJECTIVES: To investigate the initial findings of positional nystagmus in patients with sudden sensorineural hearing loss (SSNHL) and positional vertigo, and to compare hearing improvement among patients with different types of positional nystagmus. DESIGN: The characteristics of positional nystagmus upon initial examination were analysed, and the initial mean pure-tone audiometry (PTA) threshold was compared with that at three months after treatment. STUDY SAMPLE: Forty-four SSNHL patients with concomitant positional vertigo were included...
October 2016: International Journal of Audiology
Kyung-Hwa Jeong, Jung Eun Shin, Dong Hyuk Shin, Chang-Hee Kim
OBJECTIVES: To investigate the incidence and characteristics of direction-reversing nystagmus in patients with horizontal (HSCC) and posterior semicircular canal (PSCC) canalolithiasis, and evaluate the effect of direction-reversing nystagmus on the treatment outcome. STUDY DESIGN: A retrospective study. METHODS: Between March 2014 and September 2015, 63 and 92 consecutive patients with HSCC and PSCC canalolithiasis, respectively, were enrolled...
July 2016: Otology & Neurotology
Takao Imai, Noriaki Takeda, Tetsuo Ikezono, Kohichiro Shigeno, Masatsugu Asai, Yukio Watanabe, Mamoru Suzuki
Benign paroxysmal positional vertigo (BPPV) is the most common peripheral vertigo and the posterior and/or lateral semicircular canals are usually affected. BPPV is characterized by brief attacks of rotatory vertigo associated with positional and/or positioning nystagmus, which are elicited by specific head positions or changes in head position relative to gravity. In patients with the posterior-canal-type of BPPV, torsional nystagmus is induced by the Dix-Hallpike maneuver. In patients with the lateral-canal-type of BPPV, horizontal geotropic or apogeotropic nystagmus is induced by the supine roll test...
February 2017: Auris, Nasus, Larynx
Jung Eun Shin, Kyung-Hwa Jeong, Sung Hwan Ahn, Chang-Hee Kim
OBJECTIVE: To demonstrate positional nystagmus during a head-roll test in two patients with lateral semicircular canal (LSCC) cupulolithiasis who presented with spontaneous detachment of otoliths from the LSCC cupula, and to confirm that otoliths may adhere to both the utricle and canal sides of the cupula. PATIENTS AND METHODS: Using video nystagmography, positional nystagmus was evaluated in two patients with LSCC cupulolithiasis who showed the change of nystagmus direction during a head-roll test...
April 2017: Auris, Nasus, Larynx
Chang-Hee Kim, Yong Gyu Kim, Jung Eun Shin, Young Soo Yang, Donghyuk Im
Accurate lateralization is important to improve treatment outcomes in horizontal semicircular canal (HSCC) benign paroxysmal positional vertigo (BPPV). To determine the involved side in HSCC-BPPV, the intensity of nystagmus has been compared in a head-roll test (HRT) and the direction of nystagmus was evaluated in a bow and lean test (BLT). The aim of this study is to compare the results of a BLT with those of a HRT for lateralization of HSCC-canalolithiasis and cupulopathy (heavy cupula and light cupula), and evaluate treatment outcomes in patients with HSCC-canalolithiasis...
October 2016: European Archives of Oto-rhino-laryngology
A P Casani, I Dallan, E Navari, S Sellari Franceschini, N Cerchiai
The aim of this paper is to analyse, after clinical experience with a series of patients with established diagnoses and review of the literature, all relevant anamnestic features in order to build a simple diagnostic algorithm for vertigo in childhood. This study is a retrospective chart review. A series of 37 children underwent complete clinical and instrumental vestibular examination. Only neurological disorders or genetic diseases represented exclusion criteria. All diagnoses were reviewed after applying the most recent diagnostic guidelines...
June 2015: Acta Otorhinolaryngologica Italica
Sertac Yetiser
Clockwise or counterclockwise, rotational, upbeating nystagmus is seen in patients with posterior canal benign paroxysmal positional vertigo during left or right head-hanging test, respectively. Rotating of nystagmus in opposite direction to the ear tested or even reversal of initial positioning rotational nystagmus is not usual and has never been reported before. We propose a new variant of posterior canal benign paroxysmal positional vertigo due to unusual behavior and location of the otoliths inside the membranous labyrinth...
2015: Case Reports in Otolaryngology
Kamran Sari, Tekin Yildirim, Hasan Borekci, Ibrahim Akin, Reha Aydin, Mahmut Ozkiris
CONCLUSION: Although there have been few studies concerning BPPV and thyroid autoimmunity and a positive relation was found between them, this study didn't find any relation between BPPV and thyroid autoimmunity. IT is thought that further large-scale studies must be done to clarify the relation. OBJECTIVES: Benign paroxysmal positional vertigo (BPPV) consists of ∼ 20% of vestibular disorders. Self-limited rotatory nystagmus with positional vertigo are the main findings of BPPV...
August 2015: Acta Oto-laryngologica
Niels West, Søren Hansen, Martin Nue Møller, Sune Land Bloch, Mads Klokker
The objective was to evaluate the clinical value of repositioning chairs in management of refractory benign paroxysmal positional vertigo (BPPV) and to study how different BPPV subtypes respond to treatment. We performed a retrospective chart review of 150 consecutive cases with refractory vertigo referred to our clinic within a 10-month period. The BPPV patients were managed with classical manual manoeuvres, the Epley Omniax(®) rotator (EO) or the TRV chair (TRV). In addition, a comprehensive review of the literature was performed...
March 2016: European Archives of Oto-rhino-laryngology
S Yetiser, D Ince
BACKGROUND: Benign paroxysmal positional vertigo (BPPV) is the most common peripheral vestibular problem. However, demographic analysis is few. AIM: The aim of this study was to document the demographic data of patients with BPPV regarding distribution of gender, age, associated problems, most common form, symptom duration, severity of nystagmus and cure rate. SUBJECTS AND METHODS: A total of 263 patients with video-nystagmography confirmed BPPV were enrolled in this retrospective study (2009-2013)...
January 2015: Annals of Medical and Health Sciences Research
Béla Büki, Marco Mandalà, Daniele Nuti
Atypical variants of benign paroxysmal positional vertigo (BPPV) are often encountered and frequently confusing. The authors present a hypothetical framework that accounts for all classical patterns of BPPV and several unusual variants such as BPPV without nystagmus, BPPV with downbeat nystagmus and BPPV with paradoxically direction-changing nystagmus. The authors introduce new concepts, such as "ipsicanal switch" and "horizontal short arm canalolithiasis" and suggest that their use may improve diagnosis and treatment in everyday clinical practice...
2014: Journal of Vestibular Research: Equilibrium & Orientation
L Califano, F Salafia, S Mazzone, M G Melillo, M Califano
Posterior canal benign paroxysmal positional vertigo (BPPV) is the most frequent form of BPPV. It is characterized by a paroxysmal positioning nystagmus evoked through Dix-Hallpike and Semont positioning tests. Anterior canal BPPV (AC) is more rare than posterior canal BPPV; it presents a prevalent down beating positioning nystagmus, with a torsional component clockwise for the left canal, counterclockwise for the right canal. Due to the possible lack of the torsional component, it is sometimes difficult to identify the affected ear...
June 2014: Acta Otorhinolaryngologica Italica
Nicolas Perez-Fernandez, Marta Martinez-Lopez, Raquel Manrique-Huarte
CONCLUSION: The function of all the semicircular canals in patients with idiopathic benign paroxysmal positional vertigo (BPPV) in whom otoconial debris is located in the superior semicircular canal (SSC) is normal. OBJECTIVE: BPPV of SSC is an infrequent entity in which otoconial debris evokes vertigo and nystagmus in the head-hanging position and during anterior flexion of the patient. METHODS: We studied the vestibulo-ocular reflex (VOR) in 12 patients with this particular type of BPPV...
May 2014: Acta Oto-laryngologica
Corinna Lechner, Rachael L Taylor, Chris Todd, Hamish Macdougall, Robbie Yavor, G Michael Halmagyi, Miriam S Welgampola
Direction changing horizontal positional nystagmus can be observed in a variety of central and peripheral vestibular disorders. We tested sixty subjects with horizontal positional nystagmus and vertigo on the Epley Omniax(®) rotator. Monocular video recordings were performed with the right or left ear down, in the supine and prone positions. Nystagmus slow-phase velocity (SPV) was plotted as a function of time. Thirty-one subjects diagnosed with horizontal canalolithiasis had paroxysmal horizontal geotropic nystagmus with the affected ear down (onset 0...
May 2014: Journal of Neurology
K Otsuka, M Negishi, M Suzuki, T Inagaki, M Yatomi, U Konomi, T Kondo, Y Ogawa
OBJECTIVES: Using American bullfrog models under normal conditions and under vestibular dysfunction, we investigated whether mechanical vibration applied to the ear could induce otoconial dislodgement. METHODS: Vibration was applied to the labyrinth of the bullfrog using a surgical drill. The time required for the otoconia to dislodge from the utricular macula was measured. Vestibular dysfunction models were created and the dislodgement time was compared with the normal models...
January 2014: Journal of Laryngology and Otology
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