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vestibular evoked myogenic potential

Magdalena Lachowska, Paulina Glinka, Kazimierz Niemczyk
BACKGROUND: Air-conducted and skull-tap cervical vestibular evoked myogenic potentials (AC-cVEMP and Tap-cVEMP) have been shown to be very promising tools in clinical practice. They are noninvasive, easy to obtain and - importantly - they require little time and the cost of the instruments is low. OBJECTIVES: The aim of this study was to evaluate the usefulness of the combined use of ACand Tap-cVEMPs as a diagnostic tool for advanced assessment of vestibular schwannoma in determining tumor origin, and to investigate whether the results are helpful for a surgeon as an additional source of information about the tumor before surgery...
March 13, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Ali Bayram, Mehmet Kalkan, Nuri Ünsal, Ahmet Kale, Bekir Küçük, Cemil Mutlu
OBJECTIVE: The aim of the present study was to investigate the influence of blindness on ocular vestibular evoked myogenic potentials (oVEMP) responses. METHODS: Thirty-one subjects with unilateral blindness (UB group) and 25 age and sex-matched healthy subjects (control group) were recruited for the present study. The oVEMP responses including latency, amplitude and amplitude asymmetry ratio (AR) were measured and compared between the blind side, the contralateral eye of the UB group and the control subjects...
March 3, 2018: American Journal of Otolaryngology
Katherine D Heidenreich, Crystal M Pitts, Kristen Angster, Trevor Zajac, Shaleta Havard, Tori L Melendez, Paul R Kileny
OBJECTIVE: To describe the electrocochleography (ECochG) findings in patients with bilateral vestibular paresis and sound- and/or pressure-induced horizontal nystagmus. DESIGN: Retrospective case series. SETTING: Tertiary care center. PATIENTS: Three adult patients with bilateral vestibular paresis and sound- and/or pressure-induced horizontal nystagmus were evaluated from 2012 to 2016. MAIN OUTCOME MEASURE: All patients underwent ECochG, vestibular evoked myogenic potential (VEMP) testing, bithermal caloric testing, rotary chair testing, audiometric testing, and temporal bone computed tomography (CT)...
March 1, 2018: Otology & Neurotology
Jin Su Park, Chang-Hee Kim, Min-Beom Kim
OBJECTIVE: The purpose of this study was to evaluate and compare the results of cervical vestibular evoked myogenic potential (cVEMP) and video head impulse test (p-vHIT) of posterior semicircular canal considered tools of inferior vestibular nerve function in vestibular neuritis. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary otology clinic. PATIENTS AND INTERVENTIONS: Seventy-nine patients with vestibular neuritis participated in this study...
February 28, 2018: Otology & Neurotology
Richard A Roberts
Purpose: This clinical report is presented to describe how results of vestibular function testing were considered along with other medical history to develop a management plan that was ultimately successful. Method: The patient underwent audio-vestibular assessment including comprehensive audiogram, videonystagmography, cervical vestibular evoked myogenic potential, and postural stability testing. Results: Results from initial testing were most consistent with uncompensated peripheral vestibular dysfunction affecting the right superior vestibular nerve...
February 19, 2018: American Journal of Audiology
Amanda I Rodriguez, Megan L A Thomas, Denis Fitzpatrick, Kristen L Janky
OBJECTIVES: Vestibular evoked myogenic potential (VEMP) testing is increasingly utilized in pediatric vestibular evaluations due to its diagnostic capability to identify otolith dysfunction and feasibility of testing. However, there is evidence demonstrating that the high-intensity stimulation level required to elicit a reliable VEMP response causes acoustic trauma in adults. Despite utility of VEMP testing in children, similar findings are unknown. It is hypothesized that increased sound exposure may exist in children because differences in ear-canal volume (ECV) compared with adults, and the effect of stimulus parameters (e...
March 2018: Ear and Hearing
A S Kudryavtseva, A V Amelin
AIM: To study the parameters of vestibular evoked myogenic potentials (VEMPs) in different types of vertigo. MATERIAL AND METHODS: Seventy-seven patients, 35 men and 42 women, aged 43.7±12.5 years, with vestibular vertigo and unsteadiness were examined. The activity of the stemocleidomastoid muscle in response to auditory stimulation of the ipsilateral ear was recorded using surface electromyography. RESULTS: There were a trend towards the increase in the N2 latency, the significant reduction of the P1-N2 amplitude (p<0,005) on both sides and significant changes in the coefficient of asymmetry...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
Arthur Mallinson, Anouk Kuijpers, Neil Longridge
OBJECTIVE: Ocular vestibular-evoked myogenic potentials (OVEMPs) in our hands provide us with reproducible and consistent results; however, it has been shown that the OVEMP amplitude decreases with increased stimulus duration. The exact number of stimuli for OVEMP recording is not consistent among the published papers describing this test. We aimed to determine the number of stimuli needed to produce a satisfactory OVEMP response and the consequences of a more prolonged stimulation to the OVEMP response...
February 20, 2018: Journal of International Advanced Otology
Huiqian Yu, Huawei Li
Background: Sudden sensorineural hearing loss (SSHL) not only involves cochlear function but might also be accompanied by vestibular disturbances. The assessment of vestibular function could be of great relevance in SSHL. Objective: To investigate the prevalence of vestibulocochlear lesions in SSHL and the correlation of specific vestibular organs with hearing prognosis. Data sources: A complete literature search of eligible studies in the PubMed and EMBASE databases was performed...
2018: Frontiers in Neurology
Chi Wang, Chien-Hao Wu, Po-Wen Cheng, Yi-Ho Young
OBJECTIVE: This study adopted an inner ear test battery comprising audiometry, and ocular vestibular evoked myogenic potential (oVEMP), cervical VEMP (cVEMP), and caloric tests to investigate the sequence of inner ear deficits in pediatric Meniere's disease (MD). METHODS: From 2005 to 2016, a total of 24 MD children aged <15 years old underwent otoscopy, CT scan, blood test, and an inner ear test battery. Nine subjects were males and 15 were females, with mean age of 12 years...
February 2018: International Journal of Pediatric Otorhinolaryngology
Nasrin Yazdani, Farzaneh Nejadian, Nima Rezazadeh, Reza Hoseinabadi, Ebrahim Karimi, Reza Gharibi, Sasan Dabiri
Despite some proposed roles for the diagnostic impact of the cervical vestibular evoked myogenic potential test in the patients with Meniere's disease, the role of this test as an objective instrument in following up the patients with Meniere's disease who underwent. Intratympanic steroid injection is not cleared. In a prospective study, thirty-one adult patients with definite one-sided Meniere's disease with vertigo as main complaint refractory to medical treatments for three months, were selected. Patients underwent three times of intratympanic dexamethasone injection with one-week intervals...
January 2018: Acta Medica Iranica
Christopher K Zalewski, R Steven Ackley, Devin L McCaslin, M Diane Clark, Wendy D Hanks, Carmen C Brewer
OBJECTIVES: Significant advancements have been made toward the clinical assessment of utricular function through ocular vestibular-evoked myogenic potentials (oVEMP) and unilateral centrifugation (UCF) testing. To date, no study has examined intrasubject relationships between these measures. The study hypothesis was that intrasubject responses from oVEMP and UCF testing would be correlated inasmuch as both tests have been reported to assess utricular function. DESIGN: UCF rotations and oVEMP testing were performed on healthy volunteers, aged 18 to 62 years...
February 10, 2018: Ear and Hearing
Aravind Kumar Rajasekaran, Amey Rajan Savardekar, Nagaraja Rao Shivashankar
BACKGROUND: Schwannoma of the hypoglossal nerve is rare. This case report documents an atypical abnormality of the cervical vestibular evoked myogenic potential (cVEMP) in a patient with schwannoma of the hypoglossal nerve. The observed abnormality was attributed to the proximity of the hypoglossal nerve to the spinal accessory nerve in the medullary cistern and base of the skull. PURPOSE: To report cVEMP abnormality in a patient with hypoglossal nerve schwannoma and provide an anatomical correlation for this abnormality...
February 2018: Journal of the American Academy of Audiology
Anuj Kumar Neupane, Krithika Gururaj, Sujeet Kumar Sinha
BACKGROUND: Motion sickness is a complex autonomic phenomenon caused by the intersensory conflict among the balancing systems, resulting in a mismatch of signals between static physical conditions of the susceptible individual exposed to dynamic environment. PURPOSE: The present study was done to assess the sacculocollic reflex pathway and six semicircular canals in individuals susceptible to motion sickness. RESEARCH DESIGN: Standard group comparison was used...
February 2018: Journal of the American Academy of Audiology
Devin L McCaslin
No abstract text is available yet for this article.
February 2018: Journal of the American Academy of Audiology
R Gürkov, C Jerin, W Flatz, R Maxwell
BACKGROUND: Superior canal dehiscence syndrome (SCDS) is a relatively rare neurotological disorder that is characterized by a heterogeneous clinical picture. Recently, vestibular evoked myogenic potential (VEMP) measurementwas established for the diagnosis of SCDS. In the present study, a case series of patients with SCDS were analyzed, with a focus on VEMP. METHODS: Four patients with SCDS were prospectively examined with ocular VEMP (oVEMP) and cervical VEMP (cVEMP)...
January 23, 2018: HNO
Maria Eduarda Di Cavalcanti Alves de Souza, Klinger Vagner Teixeira da Costa, Pedro de Lemos Menezes
INTRODUCTION: Caffeine can be considered the most consumed drug by adults worldwide, and can be found in several foods, such as chocolate, coffee, tea, soda and others. Overall, caffeine in moderate doses, results in increased physical and intellectual productivity, increases the capacity of concentration and reduces the time of reaction to sensory stimuli. On the other hand, high doses can cause noticeable signs of mental confusion and error induction in intellectual tasks, anxiety, restlessness, muscle tremors, tachycardia, labyrinthine changes, and tinnitus...
December 24, 2017: Brazilian Journal of Otorhinolaryngology
Sendhil Govender, James Gordon Colebatch
Our object was to investigate the effect of location and phase on the properties of oVEMPs and cVEMPs evoked by two bone conducted (BC) stimuli - 500 Hz and an impulsive stimulus - for midline skull sites, from Nz to Iz, in normal volunteers. Compressive and rarefactive onset phases were used and the induced linear and rotational accelerations measured. We confirmed our previous finding of marked changes in the polarity of oVEMPs with location. For cVEMPs using the 500 Hz stimulus there were few changes with location or phase but the impulsive stimulus showed clear phase-related changes at several locations, with the shortest latencies occurring with compressive stimuli at AFz and Fz and the largest amplitudes at Iz...
December 13, 2017: Journal of Neurophysiology
Kuei-You Lin, Te-Huei Yeh, Fu-Shan Jaw, Yi-Ho Young
This study investigated ocular vestibular-evoked myogenic potential (oVEMP) tests via Fpz and Fz taps to assess the role of the frontal sinus in mediating oVEMP elicitation. Forty healthy subjects and 80 patients with Ménière disease (MD) underwent a series of oVEMP tests via a minishaker tapping at the Fpz and Fz sites in a randomized order. Response rates of oVEMP test via various tapping sites were compared. Dimensions of the frontal sinus were measured via CT scan. A significantly negative correlation between the age and height of the frontal sinus was noted, and the cutoff age for discriminating present and absent Fpz oVEMPs in MD patients was 52 years...
January 18, 2018: Audiology & Neuro-otology
Hayoung Byun, Jae Ho Chung, Seung Hwan Lee, Chul Won Park, Dong Woo Park, Tae Yoon Kim
OBJECTIVE: To investigate the clinical significance of 4-hour delayed-enhanced 3.0 Tesla three-dimensional (3D) fluid-attenuated inversion recovery (FLAIR) magnetic resonance (MR) imaging in acute vestibular neuritis. STUDY DESIGN: A prospective observational study. METHODS: Twenty-nine vestibular neuritis patients were enrolled between January 2017 and June 2017. Vestibular function tests, comprising the caloric and video head impulse tests and vestibular-evoked myogenic potential measurements, were performed...
January 13, 2018: Laryngoscope
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