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https://www.readbyqxmd.com/read/28168887/cervical-and-ocular-vemp-testing-in-diagnosing-superior-semicircular-canal-dehiscence
#1
Jacob B Hunter, Neil S Patel, Brendan P O'Connell, Matthew L Carlson, Neil T Shepard, Devin L McCaslin, George B Wanna
Objective To determine the sensitivity and specificity of ocular and cervical vestibular evoked myogenic potentials (VEMPs) in the diagnosis of superior semicircular canal dehiscence (SCD) and to describe the VEMP response characteristics that are most sensitive to SCD and compare the findings to previous reports. Study Design Case series with chart review. Setting Two tertiary neurotologic referral centers. Subjects and Methods Cervical and ocular VEMP peak-to-peak amplitudes and thresholds from 39 adult patients older than 18 years with surgically confirmed SCD were compared with 84 age-matched controls...
February 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28167018/dysequilibrium-in-a-5-year-old-child-with-intrameatal-vascular-loops-bilaterally
#2
Ming-Hsun Wen, Po-Wen Cheng, Yi-Ho Young
A 5 year-old boy was rather healthy until one month ago when loss of balance and muscle tone was noted by the parents. A battery of tests comprising electroencephalography, audiometry, caloric test and ocular vestibular evoked myogenic potential (oVEMP) test were performed, yet all tests showed normal responses. Conversely, cervical VEMP (cVEMP) test showed delayed responses bilaterally. MR imaging demonstrated bilaterally intrameatal vascular loops extending into both internal auditory canals. After a 3-month medication, delayed cVEMPs were resolved and returned to normal cVEMPs bilaterally, accompanied by subsidence of dysequilibrium...
March 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28104012/-simultaneous-triple-semicircular-canal-plugging-and-cochlear-implantation-in-advanced-meniere-s-disease
#3
D G Zhang, L Xu, Y C Han, Y F Lyu, J F Luo, Y W Li, R J Wang, Z M Fan, H B Wang
Objective: To evaluate the feasibility of combining simultaneous triple semicircular canal plugging (TSCP) and cochlear implantation (CI) to treat vertigo and hearing loss in advanced Meniere's disease(MD) patients, so as to provide an alternative surgical procedure for treating this disorder. Methods: Data from seven patients, who were referred to our hospital and diagnosed with unilateral MD strictly meeting the criteria issued by Chinese Academy of Otolaryngology-Head and Neck Surgery Committee (2006), from Jan...
January 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28017229/vestibular-evoked-myogenic-potentials-and-mri-in-early-multiple-sclerosis-validation-of-the-vemp-score
#4
Luka Crnošija, Magdalena Krbot Skorić, Tereza Gabelić, Ivan Adamec, Mario Habek
BACKGROUND: To validate the VEMP score as a measure of brainstem dysfunction in patients with the first symptom of multiple sclerosis (MS) (clinically isolated syndrome (CIS)) and to investigate the correlation between VEMP and brainstem MRI results. METHODS: 121 consecutive CIS patients were enrolled and brainstem functional system score (BSFS) was determined. Ocular VEMP (oVEMP) and cervical VEMP (cVEMP) were analyzed for latencies, conduction block and amplitude asymmetry ratio and the VEMP score was calculated...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27930443/otolith-dysfunction-in-persons-with-both-diabetes-and-benign-paroxysmal-positional-vertigo
#5
Linda J DʼSilva, Hinrich Staecker, James Lin, Christy Maddux, John Ferraro, Hongying Dai, Patricia M Kluding
OBJECTIVE: Vestibular dysfunction is a well-recognized complication of type 2 diabetes (DM) that may contribute to increased fall risk. The prevalence of benign paroxysmal positional vertigo (BPPV) is higher in people with DM. The impact of DM on the otolith organs of the vestibular system in people with BPPV is unknown. The purpose of this study was to analyze otolith function using vestibular-evoked myogenic potential (VEMP) tests in people with DM and concurrent BPPV (BPPV + DM), and to examine the relationships between VEMP variables and diabetes-related variables...
March 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/27889628/effect-of-betel-nut-chewing-on-the-otolithic-reflex-system
#6
Chuan-Yi Lin, Yi-Ho Young
OBJECTIVE: This study investigated the effect of betel nut chewing on the otolithic reflex system. METHODS: Seventeen healthy volunteers without any experience of chewing betel nut (fresh chewers) and 17 habitual chewers underwent vital sign measurements, ocular vestibular-evoked myogenic potential (oVEMP), and cervical VEMP (cVEMP) tests prior to the study. Each subject then chewed two pieces of betel nut for 2min (dosing). The same paradigm was repeated immediately, 10min, and 20min after chewing...
January 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27856148/evaluation-of-benign-paroxysmal-positional-vertigo-following-le-fort-i-osteotomy
#7
K Deniz, S S Akdeniz, A Ö Koç, S Uçkan, L N Ozluoğlu
The Le Fort I osteotomy is widely used to correct dentofacial deformities. Benign paroxysmal positional vertigo (BPPV) is a common vestibular end organ disorder characterized by short, often recurrent episodes of vertigo. Head trauma is one of the known causes of BPPV. During pterygoid osteotomy, the surgical trauma induced by percussion with the surgical mallet and osteotomes can displace otoliths into the semicircular canal, resulting in BPPV. The aim of this study was to evaluate the potential risk of occurrence of BPPV in individuals undergoing Le Fort I osteotomy...
March 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27814311/effects-of-acoustic-stimulus-duration-on-cervical-vestibular-evoked-myogenic-potentials-a-neurophysiological-and-modeling-study
#8
A Ciardo, N El Assawy, S Mauro, L Priano
OBJECTIVE: To analyze and model the effects of acoustic stimulus duration on cervical vestibular evoked myogenic potentials (cVEMPs). DESIGN: Subjects with normal hearing and no vestibular or cervical disorders were tested using 1 kHz tone bursts (TBs) of different durations to evoke cVEMPs from the ipsilateral sternocleidomastoid muscle. VEMP modeling was performed in Labview. RESULTS: The increase in TB duration initially resulted in a non-linear increase in cVEMP amplitude, followed by more complex cVEMP modifications that were mainly related to the appearance of a new wave (nX) that interfered with n23...
November 3, 2016: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/27746761/vestibular-function-tests-for-vestibular-migraine-clinical-implication-of-video-head-impulse-and-caloric-tests
#9
Woo Seok Kang, Sang Hun Lee, Chan Joo Yang, Joong Ho Ahn, Jong Woo Chung, Hong Ju Park
Vestibular migraine (VM) is one of the most common causes of episodic vertigo. We reviewed the results of multiple vestibular function tests in a cohort of VM patients who were diagnosed with VM according to the diagnostic criteria of the Barany Society and the International Headache Society and assessed the efficacy of each for predicting the prognosis in VM patients. A retrospective chart analysis was performed on 81 VM patients at a tertiary care center from June 2014 to July 2015. Patients were assessed by the video head impulse test (vHIT), caloric test, vestibular-evoked myogenic potentials (VEMPs), and sensory organization test (SOT) at the initial visit and then evaluated for symptomatic improvement after 6 months...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27716603/do-vestibular-evoked-myogenic-potential-abnormalities-in-patients-with-cochlear-implant-only-reflect-saccular-dysfunction
#10
Hasan Demirhan, Muhammet Yıldız, Özgür Yiğit
OBJECTIVE: The objective of this study was to explore the usefulness of 1000-Hz tone burst (TB) stimuli for detecting cervical vestibular-evoked myogenic potential (cVEMP) abnormalities in patients with a cochlear implant (CI). MATERIALS AND METHODS: Thirty asymptomatic patients who received unilateral CI because of severe bilateral sensorineural hearing loss were assessed for cVEMP produced by TB stimuli at two frequencies (500 and 1000 Hz) in the airway. VEMPs were recorded when the devices were switched to the on (CI-on) and off (CI-off) positions...
August 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27716602/evaluation-of-the-vestibular-system-and-etiology-in-children-with-unilateral-sensorineural-hearing-loss
#11
Leman Birdane, Armağan İncesulu, Erkan Özüdoğru, Cemal Cingi, Hamdi Caklı, Melek Kezban Gürbüz, Baki Adapınar
OBJECTIVE: The aim of this study was to evaluate the vestibular system of children with unilateral sensorineural hearing loss (USNHL), investigate the etiological factors of USNHL and analyze whether a genetic predisposition exists. MATERIALS AND METHODS: Thirty-three children aged less than 18 years with USNHL, who visited the ear, nose, and throat (ENT) department between January 2004 and December 2012, were included in this study. Cases with conductive hearing loss were excluded from the study...
August 2016: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/27679562/stimulation-from-cochlear-implant-electrodes-assists-with-recovery-from-asymmetric-perceptual-tilt-evidence-from-the-subjective-visual-vertical-test
#12
Joshua J Gnanasegaram, William J Parkes, Sharon L Cushing, Carmen L McKnight, Blake C Papsin, Karen A Gordon
Vestibular end organ impairment is highly prevalent in children who have sensorineural hearing loss (SNHL) rehabilitated with cochlear implants (CIs). As a result, spatial perception is likely to be impacted in this population. Of particular interest is the perception of visual vertical because it reflects a perceptual tilt in the roll axis and is sensitive to an imbalance in otolith function. The objectives of the present study were thus to identify abnormalities in perception of the vertical plane in children with SNHL and determine whether such abnormalities could be resolved with stimulation from the CI...
2016: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/27666701/-characteristics-of-cervical-vestibular-evoked-myogenic-potential-in-different-test-positions
#13
X X Fu, B Liu, B E Qi, C Ji, J Z Guan
Objective: To investigate the characteristics of cervical vestibular evoked myogenic potential (cVEMP) of normal youth with different test positions, to study the relationship between test positions and test parameters, and to explore the suitable test position for clinical practice. Methods: Fifty healthy young volunteers (25 males, 25 females, 100 ears) were enrolled in this study. Two test positions were used, including sitting with the head turned away from the test (SIT) and supine with the head held straight up (SUP)...
September 7, 2016: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/27638068/vestibular-evoked-myogenic-potentials
#14
REVIEW
J G Colebatch, S M Rosengren, M S Welgampola
The vestibular-evoked myogenic potential (VEMP) is a short-latency potential evoked through activation of vestibular receptors using sound or vibration. It is generated by modulated electromyographic signals either from the sternocleidomastoid muscle for the cervical VEMP (cVEMP) or the inferior oblique muscle for the ocular VEMP (oVEMP). These reflexes appear to originate from the otolith organs and thus complement existing methods of vestibular assessment, which are mainly based upon canal function. This review considers the basis, methodology, and current applications of the cVEMP and oVEMP in the assessment and diagnosis of vestibular disorders, both peripheral and central...
2016: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27624122/altered-processing-of-otolithic-information-in-isolated-lateral-medullary-infarction
#15
Hyo-Jung Kim, Seoyeon Kim, Jae Han Park, Ji-Soo Kim
Ocular and cervical vestibular-evoked myogenic potentials (VEMPs) evaluate the function of otolithic pathways in central as well as peripheral vestibular disorders. This study aimed to determine the associations and dissociations of otolithic dysfunction in lateral medullary infarction (LMI), the most well-known disorder of central vestibulopathy. At the Dizziness Clinic of a referral-based University Hospital, 45 patients with isolated LMI (28 men, mean age = 55.6 ± 12.5) had evaluation of the ocular tilt reaction (OTR), tilt of the subjective visual vertical (SVV), and ocular and cervical VEMPs from Janurary 2011 to August 2015 during the acute phase, 1-11 days from the symptom onset (median = 2 days)...
December 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27609665/ocular-vestibular-evoked-myogenic-potential-testing-for-the-prognosis-of-bell-s-palsy
#16
Chul Won Yang, Sang Hoon Kim, Seung Geun Yeo, Moon Suh Park, Jae Yong Byun
CONCLUSION: oVEMP could be a useful tool for predicting the prognosis of Bell's palsy comparable to ENoG and H-B grade. OBJECTIVES: Several previous studies have reported cases of Bell's palsy with vestibular function disorder. The basic hypothesis behind this effect lies in the close proximity of the vestibular and facial nerves in the internal auditory canal (IAC). Therefore, the aim of this study was to investigate the correlation between Bell's palsy prognosis and ocular vestibular evoked myogenic potentials (oVEMPs)...
September 9, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27608722/end-point-indicators-of-low-dose-intra-tympanic-gentamicin-in-management-of-m%C3%A3-ni%C3%A3-re-s-disease
#17
Hong Liu, Ting Zhang, Qianru Wu, Yibo Zhang, Chunfu Dai
CONCLUSIONS: One-shot, low-dose intra-tympanic gentamicin (ITG) treatment was effective and safe for Ménière's disease (MD) patients. Head thrust test (HTT) and vestibular evoked myogenic potentials (VEMPs) test could be used as endpoint indicators for vertigo control in MD patients. OBJECTIVES: The present study is to explore end-point indicators of ITG injection in MD. METHODS: Patients with MD were reviewed from June 2012 to March 2014...
September 9, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27557910/vestibular-evoked-myogenic-potentials-in-vestibular-migraine-do-they-help-differentiating-from-meni%C3%A3-re-s-disease
#18
Aki Inoue, Naoya Egami, Chisato Fujimoto, Makoto Kinoshita, Tatsuya Yamasoba, Shinichi Iwasaki
OBJECTIVE: To investigate whether both cervical and ocular vestibular myogenic potentials (cVEMPs and oVEMPs) to air-conducted sound (ACS) and bone-conducted vibration (BCV) can help to differentiate vestibular migraine (VM) and Menière's disease (MD). STUDY DESIGN: Retrospective study. SETTINGS: A tertiary referral center. SUBJECTS AND METHODS: Twenty-eight patients with VM, 28 patients with definite unilateral MD, and 28 age-matched controls were included...
November 2016: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/27553486/n-acetylcysteine-as-a-single-therapy-for-sudden-deafness
#19
Chao-Hsien Chen, Yi-Ho Young
CONCLUSION: Like NAC ameliorates hearing loss from acoustic trauma in the inner ear, NAC may also rescue hearing loss from sudden deafness confined to the inner ear. OBJECTIVE: This study assesses the effect of N-acetyl-L-cysteine (NAC) as a single therapy for sudden deafness. METHODS: Thirty-five sudden deafness patients with neither systemic disorders nor central signs in electronystagmography were treated with NAC alone and assigned to Group A...
January 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27525621/correlation-of-superior-canal-dehiscence-surface-area-with-vestibular-evoked-myogenic-potentials-audiometric-thresholds-and-dizziness-handicap
#20
Jacob B Hunter, Brendan P O'Connell, Jianing Wang, Srijata Chakravorti, Katie Makowiec, Matthew L Carlson, Benoit Dawant, Devin L McCaslin, Jack H Noble, George B Wanna
OBJECTIVE: To correlate objective measures of vestibular and audiometric function as well as subjective measures of dizziness handicap with the surface area of the superior canal dehiscence (SCD). STUDY DESIGN: Retrospective chart review and radiological analysis. SETTING: Single tertiary academic referral center. PATIENTS: Preoperative computed tomography imaging, patient survey, audiometric thresholds, and vestibular evoked myogenic potential (VEMP) testing in patients with confirmed SCD...
September 2016: Otology & Neurotology
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