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vestibular evoked myogenic potential

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https://www.readbyqxmd.com/read/29142084/impaired-vestibular-responses-in-internuclear-ophthalmoplegia-association-and-dissociation
#1
Seo-Young Choi, Hyo-Jung Kim, Ji-Soo Kim
OBJECTIVE: To determine the role of the medial longitudinal fasciculus (MLF) in conveying vestibular signals. METHODS: In 10 patients with isolated acute unilateral internuclear ophthalmoplegia (INO) due to an acute stroke, we performed comprehensive vestibular evaluation using video-oculography, head impulse tests with a magnetic search coil technique, bithermal caloric tests, tests for the ocular tilt reaction, and measurements of subjective visual vertical and cervical and ocular vestibular evoked myogenic potentials (VEMPs)...
November 15, 2017: Neurology
https://www.readbyqxmd.com/read/29135871/ocular-vestibular-evoked-myogenic-potentials-where-are-we-now
#2
Julia Dlugaiczyk
OBJECTIVE: Over the last decade, ocular vestibular evoked myogenic potentials (oVEMPs) have evolved as a new clinical test for dynamic otolith (predominantly utricular) function. The aim of this review is to give an update on the neurophysiological foundations of oVEMPs and their implications for recording and interpreting oVEMP responses in clinical practice. CONCLUSION: Different lines of anatomical, neurophysiological, and clinical evidence support the notion that oVEMPs measure predominantly contralateral utricular function, while cervical cVEMPs are an indicator of ipsilateral saccular function...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29093067/practice-guideline-cervical-and-ocular-vestibular-evoked-myogenic-potential-testing-report-of-the-guideline-development-dissemination-and-implementation-subcommittee-of-the-american-academy-of-neurology
#3
Terry D Fife, James G Colebatch, Kevin A Kerber, Krister Brantberg, Michael Strupp, Hyung Lee, Mark F Walker, Eric Ashman, Jeffrey Fletcher, Brian Callaghan, David S Gloss
OBJECTIVE: To systematically review the evidence and make recommendations with regard to diagnostic utility of cervical and ocular vestibular evoked myogenic potentials (cVEMP and oVEMP, respectively). Four questions were asked: Does cVEMP accurately identify superior canal dehiscence syndrome (SCDS)? Does oVEMP accurately identify SCDS? For suspected vestibular symptoms, does cVEMP/oVEMP accurately identify vestibular dysfunction related to the saccule/utricle? For vestibular symptoms, does cVEMP/oVEMP accurately and substantively aid diagnosis of any specific vestibular disorder besides SCDS? METHODS: The guideline panel identified and classified relevant published studies (January 1980-December 2016) according to the 2004 American Academy of Neurology process...
November 1, 2017: Neurology
https://www.readbyqxmd.com/read/29081426/bilateral-vestibulopathy-diagnostic-criteria-consensus-document-of-the-classification-committee-of-the-b%C3%A3-r%C3%A3-ny-society
#4
Michael Strupp, Ji-Soo Kim, Toshihisa Murofushi, Dominik Straumann, Joanna C Jen, Sally M Rosengren, Charles C Della Santina, Herman Kingma
This paper describes the diagnostic criteria for bilateral vestibulopathy (BVP) by the Classification Committee of the Bárány Society. The diagnosis of BVP is based on the patient history, bedside examination and laboratory evaluation. Bilateral vestibulopathy is a chronic vestibular syndrome which is characterized by unsteadiness when walking or standing, which worsen in darkness and/or on uneven ground, or during head motion. Additionally, patients may describe head or body movement-induced blurred vision or oscillopsia...
2017: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/29080887/evaluation-of-vestibular-functions-in-patients-with-vogt-koyanagi-harada-disease
#5
Keishi Fujiwara, Shinya Morita, Kimiko Hoshino, Atsushi Fukuda, Yuji Nakamaru, Akihiro Homma
Vogt-Koyanagi-Harada (VKH) disease is an idiopathic, multisystem autoimmune disorder characterized by bilateral, diffuse granulomatous uveitis associated with neurological, audiovestibular, and dermatological manifestations. The purpose of this study is to investigate vestibular functions in patients with VKH disease. A total of 43 patients with VKH disease in Hokkaido University Hospital were enrolled in this study. Subjective symptoms such as dizziness or vertigo and the results of various vestibular examinations including nystagmus testing, caloric testing, and vestibular-evoked myogenic potential (VEMP) testing were investigated...
2017: Audiology & Neuro-otology
https://www.readbyqxmd.com/read/29079887/preoperative-determination-of-nerve-of-origin-in-patients-with%C3%A2-vestibular%C3%A2-schwannoma
#6
T Rahne, S Plößl, S K Plontke, C Strauss
BACKGROUND: Vestibular schwannoma (VS) is a benign tumor that develops in the internal auditory canal and the cerebellopontine angle, potentially diminishing hearing or balance. Most VS tumors arise from one of two vestibular branches: the superior or inferior vestibular nerve. Determining the specific nerve of origin could improve patient management in terms of preoperative counseling, treatment selection, and surgical decision-making and planning. The aim of this study was to introduce a novel scoring system that was designed to determine the nerve of origin...
October 27, 2017: HNO
https://www.readbyqxmd.com/read/29064832/prototype-tests-of-vertical-and-torsional-alignment-nulling-for-screening-vestibular-function
#7
M C Schubert, J Stitz, H S Cohen, H Sangi-Haghpeykar, A P Mulavara, B T Peters, J J Bloomberg
BACKGROUND: We have developed a non-invasive, behavioral measure of ocular alignment using a computer tablet, colored lenses, and touch screen software. OBJECTIVE: The goal of this study was to determine if these tests differentiate healthy controls from patients with vestibular disorders. METHODS: In the vertical alignment nulling test (VAN), subjects were asked to adjust a horizontal line that was offset vertically from a fixed horizontal line...
2017: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/29057523/aging-related-changes-in-the-cortical-processing-of-otolith-information-in-humans
#8
Peter Zu Eulenburg, Ria Maxine Ruehl, Pia Runge, Marianne Dieterich
Acoustic short tone bursts (STB) trigger ocular and cervical vestibular evoked myogenic potentials (oVEMPs/cVEMPs) by activating irregular otolith afferents. Simultaneously, STBs introduce an artificial net acceleration signal of otolith origin into the vestibular network. VEMP parameters as diagnostic otolith processing markers have been shown to decline after the age of thirty. To delineate the differential effects of healthy aging on the cortical vestibular subnetwork processing otolith information, we measured cVEMPs and the differential effects of unilateral STB in three age groups (20-40, 40-60, 60+; n=42) using functional neuroimaging...
October 23, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29030130/behavioural-and-objective-vestibular-assessment-in-persons-with-osteoporosis-and-osteopenia-a-preliminary-investigation
#9
Aditi Gargeshwari, Raghav Hira Jha, Niraj Kumar Singh, Prawin Kumar
INTRODUCTION: Calcium is vital for the functioning of the inner ear hair cells as well as for the neurotransmitter release that triggers the generation of a nerve impulse. A reduction in calcium level could therefore impair the peripheric vestibular functioning. However, the outcome of balance assessment has rarely been explored in cases with osteopenia and osteoporosis, the medical conditions associated with reduction in calcium levels. OBJECTIVE: The present study aimed to investigate the impact of osteopenia and osteoporosis on the outcomes of behavioural and objective vestibular assessment tests...
September 21, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28990655/round-window-plugging-in-the-treatment-of-superior-semicircular-canal-dehiscence
#10
Eric F Succar, Periakaruppan V Manickam, Sara Wing, Jeffrey Walter, Joseph S Greene, William J Azeredo
OBJECTIVES/HYPOTHESIS: Objectives were to describe the use of round window plugging for superior semicircular canal dehiscence syndrome and review further recommendations regarding the procedure based on our experience and to compare results with recent literature on round window plugging. STUDY DESIGN: Retrospective case series. METHODS: Fourteen patients underwent round window plugging for superior semicircular canal dehiscence at our institution from 2012 to 2015...
October 9, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28980781/-inferior-vestibular-neuritis
#11
Stephen Jacques Alzuphar, Raphaël Maire
Inferior vestibular neuritis is a rare form of acute peripheral vestibular loss that only implies the lesion of the inferior vestibular nerve. The diagnosis is based on the observation of a spontaneous downbeating nystagmus, pathological head impulse test for the posterior semicircular canal and abnormal cervical vestibular-evoked myogenic potentials. Bithermal caloric testing and head impulse test for horizontal and anterior canals are normal, as well as the ocular vestibular-evoked myogenic potentials. The differential diagnosis of inferior vestibular neuritis includes the various central lesions that produce vertical down beating nystagmus (posterior fossa) and a cerebral magnetic resonance imaging is mandatory...
October 4, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28980586/-the-importance-of-vestibular-evoked-myogenic-potentials-for-the-assessment-of-the-otolith-function-in-the-patients-presenting-with-benign-paroxysmal-positional-vertigo
#12
N L Kunel'skaya, E V Baybakova, A L Guseva, M A Chugunova, E A Manaenkova
The objective of the present study was to evaluate the otolith function in the patients presenting with idiopathic benign paroxysmal positional vertigo (pBPPV) attributable to the occlusion of the posterior semicircular canal (PSCC) of the inner ear with the use of vestibular evoked myogenic potentials (VEMP). Cervical (cVEMP) and ocular VEMP (oVEMP) were measured in 34 patients with idiopathic pBPPV before and 7 days after the treatment by means of reposition maneuvers. The results of the repeated Dix-Hallpike test performed 7 days after the repositioning maneuver were negative in 27 patients and positive in 7 patients...
2017: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/28948300/-preoperative-determination-of-nerve-of-origin-in-patients-with-vestibular-schwannoma-german-version
#13
T Rahne, S Plößl, S K Plontke, C Strauss
BACKGROUND: Vestibular schwannoma (VS) is a benign tumor that develops in the internal auditory canal and the cerebellopontine angle, potentially diminishing hearing or balance. Most VS tumors arise from one of two vestibular branches: the superior or inferior vestibular nerve. Determining the specific nerve of origin could improve patient management in terms of preoperative counseling, treatment selection, and surgical decision-making and planning. The aim of this study was to introduce a novel scoring system that was designed to determine the nerve of origin...
September 25, 2017: HNO
https://www.readbyqxmd.com/read/28928714/abnormal-cervical-vestibular-evoked-myogenic-potentials-predict-evolution-of-isolated-recurrent-vertigo-into-meniere-s-disease
#14
Sun-Uk Lee, Hyo-Jung Kim, Jeong-Yoon Choi, Ja-Won Koo, Ji-Soo Kim
INTRODUCTION: Vestibular-evoked myogenic potentials (VEMPs) can be abnormal in patients with idiopathic recurrent spontaneous vertigo. We aimed to determine whether abnormal cervical vestibular-evoked myogenic potentials (cVEMPs) can predict evolution of isolated recurrent vertigo into Meniere's disease (MD). METHODS: We had followed up 146 patients with isolated recurrent vertigo and an evaluation of cVEMPs for 0-142 months [median = 6, interquartile range (IQR) = 0-29] at the Dizziness Clinic of Seoul National University Bundang Hospital from June 2003 to May 2014...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28906242/safe-use-of-acoustic-vestibular-evoked-myogenic-potential-stimuli-protocol-and-patient-specific-considerations
#15
Cory D F Portnuff, Samantha Kleindienst, Jamie M Bogle
BACKGROUND: Vestibular-evoked myogenic potentials (VEMPs) are commonly used clinical assessments for patients with complaints of dizziness. However, relatively high air-conducted stimuli are required to elicit the VEMP, and ultimately may compromise safe noise exposure limits. Recently, research has reported the potential for noise-induced hearing loss (NIHL) from VEMP stimulus exposure through studies of reduced otoacoustic emission levels after VEMP testing, as well as a recent case study showing permanent sensorineural hearing loss associated with VEMP exposure...
September 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28878303/typewriter-tinnitus-revisited-the-typical-symptoms-and-the-initial-response-to-carbamazepine-are-the-most-reliable-diagnostic-clues
#16
Woongsang Sunwoo, Yung Jin Jeon, Yun Jung Bae, Jeong Hun Jang, Ja-Won Koo, Jae-Jin Song
Although neurovascular compression of the cochlear nerve (NVC-C) presenting as typewriter tinnitus is a discrete disease category, verified diagnostic criteria are lacking. We sought to refine the diagnostic criteria for NVC-C by reference to a relatively large case series. The medical records of 22 NVC-C patients were retrospectively reviewed. Psychoacoustic characteristics, the results of diagnostic work-up (including audiovestibular neurophysiological tests and radiological evaluations), and the initial treatment response to carbamazepine were investigated...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28861037/the-clinical-utility-of-vestibular-evoked-myogenic-potentials-in-the-diagnosis-of-m%C3%A3-ni%C3%A3-re-s-disease
#17
REVIEW
Maxime Maheu, Jenny Marylin Alvarado-Umanzor, Audrey Delcenserie, François Champoux
Ménière's disease (MD) is a condition that has been proposed over 150 years ago, which involves audiological and vestibular manifestations, such as aural fullness, tinnitus, vertigo, and fluctuating hearing thresholds. Over the past few years, many researchers have assessed different techniques to help diagnose this pathology. Vestibular-evoked myogenic potential (VEMP) is an electrophysiological method assessing the saccule (cVEMP) and the utricule (oVEMP). Its clinical utility in the diagnosis of multiple pathologies, such as superior canal dehiscence, has made this tool a common method used in otologic clinics...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28861034/playing-music-may-improve-the-gait-pattern-in-patients-with-bilateral-caloric-areflexia-wearing-a-cochlear-implant-results-from-a-pilot-study
#18
Ann Hallemans, Griet Mertens, Paul Van de Heyning, Vincent Van Rompaey
HYPOTHESIS: Auditory information through an active cochlear implant (CI) influences gait parameters in adults with bilateral caloric areflexia and profound sensorineural hearing loss. BACKGROUND: Patients with bilateral caloric areflexia suffer from imbalance, resulting in an increased risk of falling. In case of simultaneous deafness, the lack of auditory feedback results in less awareness of the auditory scene. This combination might produce significant challenges while walking and navigating...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28832351/characterizing-the-age-and-stimulus-frequency-interaction-for-ocular-vestibular-evoked-myogenic-potentials
#19
Niraj Kumar Singh, Husna Firdose
OBJECTIVES: The normal process of aging is mostly associated with global decline in almost all sensory aspects of the human body. While aging affects the 500-Hz tone burst-evoked ocular vestibular-evoked myogenic potentials (oVEMPs) by reducing the amplitudes and prolonging the latencies, its interaction with oVEMP responses at other frequencies has not been studied. Therefore, the present study aimed at investigating the impact of advancing age on the frequency tuning of oVEMP. DESIGN: Using a cross-sectional research design, oVEMPs were recorded for tone burst frequencies of 250, 500, 750, 1000, 1500, and 2000 Hz from 270 healthy individuals divided into six age groups (10-20, 20-30, 30-40, 40-50, 50-60, and >60 years)...
August 19, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/28816686/vestibular-response-to-electrical-stimulation-of-the-otolith-organs-implications-in-the-development-of-a-vestibular-implant-for-the-improvement-of-the-sensation-of-gravitoinertial-accelerations
#20
Angel Ramos de Miguel, Juan Carlos Falcon Gonzalez, Angel Ramos Macias
OBJECTIVE: Electrical stimulation of the utricular and saccular portions of the vestibular nerve improves stability in patients suffering from vestibular dysfunction. The main objective of this study was to evaluate a new technique, vestibular response telemetry (VRT), for measuring the electrically evoked vestibular compound action potential (saccular and utricular) after stimulating the otolith organ (saccular and utricular) in adults. This study used evidence that the otolith organ can be electrically stimulated in order to develop a new vestibular implant design to improve the sensation of gravitoinertial acceleration...
August 2017: Journal of International Advanced Otology
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