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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/29757361/effects-of-rhinoplasty-on-labyrinthine-function
#4
Ahmet Mahmut Tekin, Erkan Soylu, Handan Turan Dizdar, Fahrettin Yilmaz, Yildirim Ahmet Bayazit
Background: Rhinoplasty is a common surgical procedure that is requested and accepted by patients for cosmetic and functional reasons. Osteotomies are performed on nasal bone, maxillary crest, or vomer to fix the deviations of the nasal dorsum or septum. During the percussion of the osteotomes with the surgical mallet, the vibration energy diffuses to the cranium. Auditory and vestibular systems may be affected by these vibrations. Objectives: To assess the effects of rhinoplasty, in which osteotomies were performed using a hammer, on the audiovestibular system...
May 11, 2018: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29750273/video-head-impulse-test-to-preoperatively-identify-the-nerve-of-origin-of-vestibular-schwannomas
#5
Felipe Constanzo, Patricia Sens, Bernardo Corrêa de Almeida Teixeira, Ricardo Ramina
BACKGROUND: Identification of the nerve of origin in vestibular schwannoma (VS) is an important prognostic factor for hearing preservation surgery. Thus far, vestibular functional tests and magnetic resonance imaging have not yielded reliable results to preoperatively evaluate this information. The development of the video head impulse test (vHIT) has allowed a precise evaluation of each semicircular canal, and its localizing value has been tested for some peripheral vestibular diseases, but not for VS...
May 10, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29747962/comparison-of-vemps-vhit-and-caloric-test-outcomes-after-vestibular-neurectomy-in-meni%C3%A3-re-s-disease
#6
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/29708491/video-head-impulse-testing-in-a-pediatric-population-normative-findings
#7
Katheryn Bachmann, Kaitlin Sipos, Violette Lavender, Lisa L Hunter
BACKGROUND: The video head impulse test (vHIT) is a new tool being used in vestibular clinics to assess the function of all six semicircular canals (SCCs) by measuring the gain of the vestibulo-ocular reflex (VOR) in response to rapid head turns. Whereas vHIT has been validated in adults for all SCCs, there are few studies describing the normal response in children, particularly for stimulation of the vertical canals. PURPOSE: The purpose of this study was to characterize the normal vHIT response for all six SCCs in children aged 4-12 years...
May 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/29692756/hierarchical-cluster-analysis-of-semicircular-canal-and-otolith-deficits-in-bilateral-vestibulopathy
#8
Alexander A Tarnutzer, Christopher J Bockisch, Elena Buffone, Konrad P Weber
Background: Gait imbalance and oscillopsia are frequent complaints of bilateral vestibular loss (BLV). Video-head-impulse testing (vHIT) of all six semicircular canals (SCCs) has demonstrated varying involvement of the different canals. Sparing of anterior-canal function has been linked to aminoglycoside-related vestibulopathy and Menière's disease. We hypothesized that utricular and saccular impairment [assessed by vestibular-evoked myogenic potentials (VEMPs)] may be disease-specific also, possibly facilitating the differential diagnosis...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29665318/assessment-of-vestibular-function-in-patients-with-chronic-middle-ear-disease-using-the-vhit-and-vemp-test
#9
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/29649051/comparison-of-video-head-impulse-test-vhit-gains-between-two-commercially-available-devices-and-by-different-gain-analytical-methods
#10
Sang Hun Lee, Myung Hoon Yoo, Jun Woo Park, Byung Chul Kang, Chan Joo Yang, Woo Suk Kang, Joong Ho Ahn, Jong Woo Chung, Hong Ju Park
OBJECTIVES: To evaluate whether video head impulse test (vHIT) gains are dependent on the measuring device and method of analysis. STUDY DESIGN: Prospective study. METHODS: vHIT was performed in 25 healthy subjects using two devices simultaneously. vHIT gains were compared between these instruments and using five different methods of comparing position and velocity gains during head movement intervals. RESULTS: The two devices produced different vHIT gain results with the same method of analysis...
April 11, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29649046/range-of-peak-head-velocity-in-video-head-impulse-testing-for-pediatric-patients
#11
Guangwei Zhou, Cassandra Goutos, Sophie Lipson, Jacob Brodsky
OBJECTIVE: To examine peak head velocity in video head impulse testing of pediatric patients and its effect on vestibulo-ocular reflex (VOR) gain. STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral center. PATIENTS: Pediatric patients ages 3 to 18 years old who underwent video head impulse testing during clinical evaluation of dizziness and/or imbalance. INTERVENTION(S): Conducted video head impulse test (vHIT) in horizontal, left anterior-right posterior (LARP), and right anterior-left posterior (RALP) planes...
April 11, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29599742/the-video-head-impulse-test-and-the-influence-of-daily-use-of-spectacles-to-correct-a-refractive-error
#12
T S van Dooren, F M P Lucieer, A M L Janssen, H Kingma, R van de Berg
Objective: To determine the influence of daily use of spectacles to correct a refractive error, on the vestibulo-ocular reflex (VOR) gain measured with the video head impulse test (vHIT). Study design: This prospective study enrolled subjects between 18 and 80 years old with and without a refractive error. Subjects were classified into three groups: (1) contact lenses, (2) spectacles, and (3) control group without visual impairment. Exclusion criteria comprised ophthalmic pathology, history of vestibular disorders, and alternated use of spectacles and contact lenses in daily life...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29593640/vestibular-dysfunction-in-wernicke-s-encephalopathy-predominant-impairment-of-the-horizontal-semicircular-canals
#13
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
#14
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/29533335/video-head-impulse-test-vhit-the-role-of-corrective-saccades-in-identifying-patients-with-vestibular-loss
#15
Kristen L Janky, Jessie Patterson, Neil Shepard, Megan Thomas, Kamran Barin, Tom Creutz, Kendra Schmid, Julie A Honaker
OBJECTIVE: 1) Characterize corrective saccades (CS) in normal controls, and 2) examine the sensitivity of the video head impulse test (vHIT) for identifying vestibular loss using both gain and CS. STUDY DESIGN: Prospective combined with retrospective review. SETTING: Tertiary referral center. PATIENTS: Seventy subjects with normal vestibular function served as controls (mean age, 44.1 yr; range, 10-78) and data from 49 patients with unilateral and bilateral vestibular loss was retrospectively reviewed (mean age, 50; range, 7-81)...
April 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29508131/acute-vestibular-syndrome-clinical-head-impulse-test-versus-video-head-impulse-test
#16
Nese Celebisoy
HINTS battery involving head impulse test (HIT), nystagmus, and test of skew is the critical bedside examination to differentiate acute unilateral peripheral vestibulopathy from posterior circulation stroke (PCS) in acute vestibular syndrome (AVS). The highest sensitivity component of the battery has been reported to be the horizontal HIT, whereas skew deviation is defined as the most specific but non-sensitive sign for PCS. Video-oculography-based HIT (vHIT) may have an additional power in making the differentiation...
March 5, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29494469/comparison-of-video-head-impulse-test-in-the-posterior-semicircular-canal-plane-and-cervical-vestibular-evoked-myogenic-potential-in-patients-with-vestibular-neuritis
#17
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...
April 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29488492/-the-compensation-of-the-vestibulo-ocular-reflex-during-rehabilitation-of-the-patients-presenting-with-vestibular-neuritis
#18
N L Kunel'skaya, E V Baibakova, A L Guseva, Ya Yu Nikitkina, M A Chugunova, E A Manaenkova
AIM: The objective of the present study was to elucidate the mechanisms behind the compensation of the vestibular ocular reflex and evaluate the effectiveness of vestibular rehabilitation in the patients presenting with vestibular neuritis (VN) with the application of the video head-impulse test (vHIT) and the dynamic visual acuity test (DVAT). METHODS: The study included 26 patients with vestibular neuritis whose condition was assessed by scoring based on the dizziness handicap inventory, the dynamic visual acuity test, and the video head-impulse test with the evaluation of saccades and the degree of eye-head movement coordination (gain) before and after the course of vestibular rehabilitation...
2018: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/29488491/-the-peculiar-features-of-vestibular-function-disorders-associated-with-meniere-s-disease
#19
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/29401064/higher-asymmetry-ratio-and-refixation-saccades-in-individuals-with-motion-sickness
#20
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
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