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caloric test vhit

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https://www.readbyqxmd.com/read/29771078/-analysis-of-the-difference-between-the-results-of-caloric-tests-and-video-head-pulse-tests-in-patients-with-vestibular-migraine-and-vestibular-neuritis
#1
W Wang, Y C Yang, J H Zhuang, F Li, B Gao
Objective: To compare the results of caloric tests and video head impulse tests (VHIT) in patients with vestibular migraine (VM) and vestibular neuritis (VN), so as to provide help for the differential diagnosis of the two patients. Method: Retrospectively analyze VM and VN patients within 2 weeks of onset from August 1, 2016 to December 31, 2017 in neurology clinic of the Changzheng Hospital of Second Military Medical University, all patients were examined by caloric tests and VHIT, and the results of the two groups were compared and analyzed...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29762197/high-frequency-horizontal-semicircular-canal-function-in-certain-meni%C3%A3-re-s-disease
#2
Claudia Jerin, Rebecca Maxwell, Robert Gürkov
OBJECTIVES: To characterize video head impulse testing (vHIT) in definitive Menière's disease and to investigate the relationship between vHIT results and other audiovestibular function tests. DESIGN: Fifty-four patients with certain Menière's disease, that is, patients with clinically definite Menière's disease and endolymphatic hydrops visualized by locally enhanced inner ear MR imaging, were recruited for this study. All patients underwent vHIT. The vestibular-ocular reflex gain at 60 ms and refixation saccades were the outcome parameters measured...
May 14, 2018: Ear and Hearing
https://www.readbyqxmd.com/read/29757550/-assessment-of-the-horizontal-semicircular-canal-function-after-cochlear-implantation-by-video-head-impulse-test-and-caloric-test
#3
Jie Zeng, Hong Ming Huang, Xiao Qian Wang, Kai Bang Zhong, Pei Na Wu
Objective: To analyze the functional change of horizontal semicircular canals after cochlear implantation. Method: Eighteen patients were enrolled in this study.Their vestibular function was evaluated by using the caloric test and video head impulse test before and one week,one month after CI surgery,respectively.The unilateral weakness(UW),slow phase velocity(SPV)in caloric test and gain in video head impulse test(vHIT-G)were observed.Caloric test was abnormal when UW>25% or SPV mean<6°/s,while vHIT was abnormal when vHIT-G<0...
January 20, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29747962/comparison-of-vemps-vhit-and-caloric-test-outcomes-after-vestibular-neurectomy-in-meni%C3%A3-re-s-disease
#4
Andrea Canale, Federico Caranzano, Michele Lanotte, Alessandro Ducati, Francesco Calamo, Andrea Albera, Michelangelo Lacilla, Marco Boldreghini, Sergio Lucisano, Roberto Albera
OBJECTIVE: Selective unilateral vestibular neurectomy (VN) is considered a reliable surgical treatment in case of recurrent vertigo in Menière's disease (MD) because of hearing preservation and a minimally invasive posterior fossa retrosigmoid approach. The present study aimed to assess the quality of life and the long-term vestibular function in patients submitted to yearly follow-up after VN because of intractable MD. METHODS: Retrospective series of 15 MD patients undergoing retrosigmoid VN for recurrent vertigo...
May 7, 2018: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29665318/assessment-of-vestibular-function-in-patients-with-chronic-middle-ear-disease-using-the-vhit-and-vemp-test
#5
J S Sandhu, M Yung, J Parker-George, B Kearney, J Ray
It is widely accepted that middle ear pathology can cause dizziness and imbalance, however this has been a challenging area to investigate, as the bi-thermal caloric test is difficult to interpret in this cohort. Recently vestibular tests that bypass the middle ear have been developed. These are the Video Head Impulse Test (vHIT) and the Bone Conduction Vestibular Evoked Myogenic Potentials (BC-VEMPs). We have successfully carried out pre-operative vHIT and BC-VEMPs on 20 patients awaiting surgery for middle ear pathologies and have shown that complete testing can be done in less than 30 minutes...
April 17, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29593640/vestibular-dysfunction-in-wernicke-s-encephalopathy-predominant-impairment-of-the-horizontal-semicircular-canals
#6
Seung-Han Lee, Sang-Hoon Kim, Ji-Min Kim, Alexander Andrea Tarnutzer
Background: Wernicke's encephalopathy (WE), a metabolic disorder due to thiamine deficiency, manifests with various neurological symptoms and signs. It has been known as a cause of vestibular dysfunction. Preliminary reports have proposed predominant involvement of the horizontal semicircular canals (HSCs). Objective: To better characterize the pattern of vestibular impairment in patients with WE using quantitative video head-impulse testing and to review the literature regarding this topic...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29557501/the-dizziness-handicap-inventory-does-not-correlate-with-vestibular-function-tests-a-prospective-study
#7
Chun Wai Yip, Michael Strupp
The Dizziness Handicap Inventory (DHI) is believed to quantitate the handicap related to the presence or severity of underlying vestibular dysfunction. However, patients with chronic vestibular diseases may manifest various degrees of behavioural and physiological adaptation resulting in variances of the DHI. Our primary study objective is to evaluate the correlation between the DHI and measurable vestibular parameters. Secondarily, we compared DHI among different vestibular disorders (central, peripheral and functional), and different types of anatomic deficits (semicircular canal vs otolithic)...
May 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29488491/-the-peculiar-features-of-vestibular-function-disorders-associated-with-meniere-s-disease
#8
V T Pal'chun, A L Guseva, S D Chistov
AIM: The objective of the present study was to reveal the special aspects of vestibular dysfunction in the patients presenting with unilateral Meniere's disease (MD) during the attack-free intervals. METHODS: The study included 23 patients suffering from unilateral MD; all of them were examined with the use of tonal threshold audiometry, videonystagmography, the caloric test and video head-impulse test (vHIT). RESULTS: The study has demonstrated that the patients with MD are characterized, during the attack-free intervals, by the absence of latent spontaneous nystagmus in conjunction with the positive results of the head shaking test...
2018: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/29305208/vestibulo-cochlear-function-in-inflammatory-neuropathies
#9
Marisa Blanquet, Jens A Petersen, Antonella Palla, Dorothe Veraguth, Konrad P Weber, Dominik Straumann, Alexander A Tarnutzer, Hans H Jung
OBJECTIVE: We aimed to quantify peripheral-vestibular deficits that may contribute to imbalanced stance/gait in patients with inflammatory neuropathies. METHODS: Twenty-one patients (58 ± 15 y [mean age ± 1SD]; chronic-inflammatory-demyelinating-polyneuropathy = 10, Guillain-Barré Syndrome = 5, Anti-MAG peripheral neuropathy = 2, multifocal-motor-neuropathy = 4) were compared with 26 healthy controls. All subjects received video-head-impulse testing (vHIT), caloric irrigation and cervical/ocular vestibular-evoked myogenic-potentials (VEMPs)...
April 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29274769/comparison-of-video-head-impulse-test-and-caloric-reflex-test-in-advanced-unilateral-definite-meni%C3%A3-re-s-disease
#10
F Rubin, F Simon, B Verillaud, P Herman, R Kania, C Hautefort
AIMS: There have been very few studies of the Video Head Impulse Test (VHIT) in patients with Menière's Disease (MD). Some reported 100% normal VHIT results, others not. These discrepancies may be due to differences in severity. The present study compared VHIT and caloric reflex test results in advanced unilateral definite MD. MATERIAL AND METHOD: A prospective study included 37 consecutive patients, with a mean age of 56±12 years. Mean hearing loss was 59±18dB HL; 12 patients were subject to Tumarkin's otolithic crises...
December 20, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29207275/clinical-features-of-otolith-organ-specific-vestibular-dysfunction
#11
Chisato Fujimoto, Sayaka Suzuki, Makoto Kinoshita, Naoya Egami, Keiko Sugasawa, Shinichi Iwasaki
OBJECTIVE: To elucidate the clinical features and vestibular symptoms of patients with otolith organ dysfunction in the presence of normal function of the semicircular canals. METHODS: We reviewed the clinical records of 277 consecutive new patients with balance disorders who underwent testing of cervical and ocular vestibular evoked myogenic potentials (cVEMPs and oVEMPs) as well as caloric testing and video head impulse testing (vHIT). RESULTS: We identified 76 patients who showed normal caloric responses and normal vHIT findings in each SCC plane, but abnormal responses in cVEMP and/or oVEMP testing...
January 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29190293/morphological-correlation-between-caloric-tests-and-vestibular-hydrops-in-m%C3%A3-ni%C3%A3-re-s-disease-using-intravenous-gd-enhanced-inner-ear-mri
#12
Ji Eun Choi, Yi-Kyung Kim, Young Sang Cho, Kieun Lee, Hyun Woo Park, Sung Hoon Yoon, Hyung-Jin Kim, Won-Ho Chung
The purpose of this study was to prove the hypothesis that caloric response in Ménière's disease (MD) is reduced by hydropic expansion of the vestibular labyrinth, not by vestibular hypofunction, by evaluating the correlation morphologically using an intravenous Gadolinium (IV-Gd) inner ear MRI. In study I, the prevalence of abnormal video Head Impulse Test (vHIT) results among the patients with definite unilateral MD (n = 24) and vestibular neuritis (VN) (n = 22) were investigated. All patients showed abnormal canal paresis (CP) (> 26%) on caloric tests...
2017: PloS One
https://www.readbyqxmd.com/read/29189298/laboratory-examinations-for-the-vestibular-system
#13
Raymond van de Berg, Sally Rosengren, Herman Kingma
PURPOSE OF REVIEW: In the last decades, researchers suggested that clinical assessment of labyrinthine function in detail became easy thanks to video head impulse tests (VHITs), vestibular evoked myogenic potential test (VEMP) and video-oculography (VOG). It has been argued that they can replace electronystagmography, the caloric and rotatory chair tests. This review addresses the latest evaluations of these tests and the opportunities they offer, but also the limitations in clinical practice...
February 2018: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29135873/the-effect-of-peripheral-vestibular-recovery-on-improvements-in-vestibulo-ocular-reflexes-and-balance-control-after-acute-unilateral-peripheral-vestibular-loss
#14
John H J Allum, Alja Scheltinga, Flurin Honegger
BACKGROUND: Patients with an acute unilateral peripheral vestibular deficit (aUPVD), presumed to be caused by vestibular neuritis, show asymmetrical vestibular ocular reflexes (VORs) that improve over time. Questions arise regarding how much of the VOR improvement is due to peripheral recovery or central compensation, and whether differences in peripheral recovery influence balance control outcomes. METHODS: Thirty patients were examined at aUPVD onset and 3, 6, and 13 weeks later with four different VOR tests: caloric tests; rotating (ROT) chair tests performed in yaw with angular accelerations of 5 and 20 degrees/s; and video head impulse tests (vHIT) in the yaw plane...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29102239/comparison-of-the-video-head-impulse-test-with-the-caloric-test-in-patients-with-sub-acute-and-chronic-vestibular-disorders
#15
Anne Burston, Stuart Mossman, Benjamin Mossman, Mark Weatherall
The aim of this prospective register-based study was to compare video Head Impulse Tests (vHIT) with caloric tests on 173 patients assessed by a tertiary Neurology referral centre who had been referred for investigation of dizziness or vertigo and whose symptom duration was one month or longer. Abnormal vHIT was defined as angular velocity gain (peak eye velocity/peak head velocity) less than 0.79 at 80 ms and 0.75 at 60 ms, which was two standard deviations below our institutions' lower limit of normal; together with refixation saccades...
January 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29089158/cerebellar-ataxia-with-neuropathy-and-vestibular-areflexia-syndrome-canvas
#16
Masakatsu Taki, Takashi Nakamura, Hiraku Matsuura, Tatsuhisa Hasegawa, Hirofumi Sakaguchi, Kanako Morita, Ryotaro Ishii, Ikuko Mizuta, Takashi Kasai, Toshiki Mizuno, Shigeru Hirano
Cerebellar ataxia with neuropathy and bilateral vestibular areflexia syndrome (CANVAS) is a novel ataxic disorder consisting of the triad of cerebellar impairment, bilateral vestibular hypofunction, and a somatosensory deficit. We report the first Japanese case of CANVAS. The patient is a 68-year-old Japanese male. He was referred to our university for further evaluation of progressive gait disturbance and ataxia. He exhibited horizontal gaze-evoked nystagmus and sensory deficit. Nerve conduction studies showed sensory neuronopathy...
October 28, 2017: Auris, Nasus, Larynx
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
#17
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/28955674/vestibulo-ocular-reflex-abnormalities-in-posterior-semicircular-canal-benign-paroxysmal-positional-vertigo-a-pilot-study
#18
Tayyebe Fallahnezhad, Mansoureh Adel Ghahraman, Saeid Farahani, Reza Hoseinabadi, Shohreh Jalaie
INTRODUCTION: Benign paroxysmal positional vertigo (BPPV), involving the semicircular canals, is one of the most common diseases of the inner ear. The video head impulse test (vHIT) is a new test that examines the function of the canals. This study aimed to investigate the vestibulo-ocular reflex (VOR) gain, gain asymmetry and saccades after stimulating all six canals in patients definitively diagnosed with posterior semicircular canal BPPV (PSC-BPPV). MATERIALS AND METHODS: Twenty-nine unilateral PSC-BPPV patients with normal oculographic and caloric results were enrolled in this study...
September 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28741403/comparative-study-between-the-caloric-vestibular-and-the-video-head-impulse-tests-in-unilateral-meni%C3%A3-re-s-disease
#19
Jonathan Andrés Cordero-Yanza, Edna Verónica Arrieta Vázquez, Juan Carlos Hernaiz Leonardo, Jimena Mancera Sánchez, Mario Sabas Hernández Palestina, Nicolás Pérez-Fernández
OBJECTIVE: Compare the caloric vestibular test (CVT) and the video head impulse test (vHIT) in the evaluation of Meniere's disease (MD) and to analyze their diagnostic accuracy. MATERIALS AND METHODS: Retrospective review of CVT and vHIT performed in MD patients at a tertiary care referral center in Spain. RESULTS: A total of 88 patients were reviewed. The CVT was abnormal in 67% (n = 59) of patients, while the vHIT was abnormal in 66% (n = 58) of them...
November 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28623066/association-of-posterior-semicircular-canal-hypofunction-on-video-head-impulse-testing-with-other-vestibulo-cochlear-deficits
#20
Alexander A Tarnutzer, Christopher J Bockisch, Elena Buffone, Konrad P Weber
OBJECTIVES: The video-head-impulse test (vHIT) provides a functional assessment of all six semicircular canals (SCC). Occasionally isolated loss of the posterior canal(s) (ILPC) is diagnosed, though this finding is poorly characterized. Here we assessed how accurate that diagnosis is by measuring the co-occurrence of abnormalities on caloric irrigation, vestibular-evoked myogenic-potentials and audiometry. METHODS: We identified 52 patients with ILPC (unilateral=40, bilateral=12)...
August 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
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