keyword
Keywords Head Impulse Test OR Nystagmus...

Head Impulse Test OR Nystagmus OR Test Of Skew OR skew Deviation

https://read.qxmd.com/read/38493767/utricular-dysfunction-and-hearing-impairment-affect-spatial-navigation-in-community-dwelling-healthy-adults-analysis-from-the-baltimore-longitudinal-study-of-aging
#1
JOURNAL ARTICLE
Colin R Grove, Eric Anson, Yuri Agrawal, Eleanor M Simonsick, Michael Schubert
INTRODUCTION: Spatial navigation, the ability to move through one's environment, is a complex skill utilized in everyday life. The effects of specific vestibular end-organ deficits and hearing impairments on spatial navigation have received little to no attention. We hypothesized that hearing impairment adversely affects spatial navigation and that bi-modal impairments (vestibular and hearing) further impair navigation ability. METHODS: Data from 182 participants in the Baltimore Longitudinal Study of Aging who had interpretable results for the video head impulse test (vHIT), cervical (cVEMP) and ocular (oVEMP) vestibular evoked myogenic potentials, audiometric testing, and the triangle completion test (TCT) were retrospectively analyzed...
March 15, 2024: Audiology & Neuro-otology
https://read.qxmd.com/read/38476505/insights-into-vestibulo-ocular-reflex-artifacts-a-narrative-review-of-the-video-head-impulse-test-vhit
#2
REVIEW
Melissa Castillo-Bustamante, Henrique F Pauna, Rafael da Costa Monsanto, Veronica A Gutierrez, Jorge Madrigal
Video head impulse test (vHIT) artifacts are defined as spurious elements or disturbances in the recorded data that deviate from the true vestibulo-ocular reflex response. These artifacts can arise from various sources, encompassing technological limitations, patient-specific factors, or environmental influences, introducing inaccuracies in vHIT outcomes. The absence of standardized criteria for artifact identification leads to methodological heterogeneity. This narrative review aims to comprehensively examine the challenges posed by artifacts in the vHIT...
March 2024: Curēus
https://read.qxmd.com/read/37891805/development-of-a-magnetoresistive-based-wearable-eye-tracking-system-for-oculomotor-assessment-in-neurological-and-otoneurological-research-preliminary-in-vivo-tests
#3
JOURNAL ARTICLE
Aniello Donniacuo, Francesca Viberti, Mario Carucci, Valerio Biancalana, Lorenzo Bellizzi, Marco Mandalà
Over the past 20 years, several eye-tracking technologies have been developed. This article aims to present a new type of eye tracker capable of producing detailed information on eye and head movements using an array of magnetoresistive detectors fixed on the patient's head and a small magnet inserted into a contact lens, adapted to the curvature of the cornea of the subject. The software used for data analysis can combine or compare eye and head movements and can represent them as 2D or 3D images. Preliminary data involve an initial patient who was asked to perform several tasks to establish the accuracy, reliability, and tolerance of the magnetic eye tracker and software...
October 10, 2023: Brain Sciences
https://read.qxmd.com/read/37887849/concordant-grade-3-truncal-ataxia-and-ocular-laterodeviation-in-acute-medullary-stroke
#4
JOURNAL ARTICLE
Jorge C Kattah
Background: Severe truncal ataxia associated with an inability to sit up without assistance (STA grade 3) is frequent in patients with central acute vestibular syndrome (AVS) involving the brainstem or cerebellum. When these patients have nystagmus, central HINTS excludes peripheral lesions; however, additional localization and lateralization signs are helpful, not only to resolve the peripheral versus central vestibular lesion dilemma, but to zero in on a precise lesion localization/lateralization to the lateral medulla, the most common ischemic lesion localization associated with an initially false-negative stroke MRI...
October 18, 2023: Audiology Research
https://read.qxmd.com/read/37748887/clinical-features-and-neurotologic-findings-in-patients-with-acute-unilateral-peripheral-vestibulopathy-associated-with-antiganglioside-antibody
#5
JOURNAL ARTICLE
Keun-Tae Kim, Euyhyun Park, Sun-Uk Lee, Byungjun Kim, Byung-Jo Kim, Ji-Soo Kim
BACKGROUND AND OBJECTIVES: Anecdotal studies have reported the presence of antiganglioside antibodies in acute unilateral peripheral vestibulopathy (AUPV). This study aimed to determine the prevalence, clinical characteristics, and neurotologic findings of AUPV associated with antiganglioside antibodies. METHODS: Serum antigangliosides were measured in consecutive patients with AUPV according to the Bárány Society criteria during the acute and recovery phases in a referral-based university hospital in South Korea from September 2019 to January 2023...
November 7, 2023: Neurology
https://read.qxmd.com/read/37455947/a-comparison-of-functional-vestibulo-ocular-reflex-and-proprioception-in-athletes-of-combat-sports-and-ball-sports
#6
JOURNAL ARTICLE
Fatma Kızılay, Deniz Uğur Cengiz
BACKGROUND: The contribution and role of sensory systems in providing postural control may vary depending on the condition or activity. Vestibulo-ocular reflex (VOR) and proprioception might be affected by the type of sport. OBJECTIVE: This study aimed to compare athletes engaged in combat sports and ball sports in terms of functional VOR and proprioception. DESIGN: This study is a cross-sectional, comperative research. METHOD: Twenty-four athletes engaged in combat sports and 20 in ball sports were included in the study...
July 2023: Heliyon
https://read.qxmd.com/read/37437361/numerical-simulations-to-determine-the-stimulation-of-the-crista-ampullaris-during-the-head-impulse-test
#7
JOURNAL ARTICLE
Ismael Arán-Tapia, Andrés Soto-Varela, Vicente Pérez-Muñuzuri, Sofía Santos-Pérez, Ismael Arán, Alberto P Muñuzuri
The Head Impulse Test, the most widely accept test to assess the vestibular function, comprises rotations of the head based on idealized orientations of the semicircular canals, instead of their individual arrangement specific for each patient. In this study, we show how computational modelling can help personalize the diagnosis of vestibular diseases. Based on a micro-computed tomography reconstruction of the human membranous labyrinth and their simulation using Computational Fluid Dynamics and Fluid-Solid Interaction techniques, we evaluated the stimulus experienced by the six cristae ampullaris under different rotational conditions mimicking the Head Impulse Test...
July 3, 2023: Computers in Biology and Medicine
https://read.qxmd.com/read/37342103/quantitative-vestibular-assessment-the-development-and-validation-of-a-novel-remote-video-head-impulse-test-against-in-clinic-measurements
#8
JOURNAL ARTICLE
Raymond J So, Ashley Cevallos, Macie Pile, Kevin Biju, Carlos Perez-Heydrich, Dominic Padova, Courtney Walker, Michael Schubert, Yuri Agrawal
OBJECTIVES: To develop a novel remote head impulse test (rHIT), and to provide preliminary data validating the rHIT vestibular-ocular reflex (VOR) gains against the in-clinic vHIT. METHODS: A convenience sample of 10 patients referred for vestibular assessment at our institution was recruited. In-clinic vHIT was used to quantify lateral VOR gains. Patients subsequently underwent an rHIT protocol, whereby patients performed active, lateral head rotations while their eyes and heads were recorded using a laptop camera and video-conferencing software...
June 2023: Laryngoscope Investigative Otolaryngology
https://read.qxmd.com/read/37292112/comprehensive-normative-data-for-objective-vestibular-tests
#9
JOURNAL ARTICLE
Suman Narayana Swamy, Pradeep Yuvaraj, Nupur Pruthi, Kandavel Thennarasu, Aravind Kumar Rajasekaran
INTRODUCTION:  Vestibular dysfunction is a debilitating disorder frequently encountered in neurological and otological settings. The vestibular system is a complex network between peripheral and central mechanisms. This innate complexity of the vestibular system necessitates objective test procedures for evidence-based diagnostic formulations and intervention. Objective tests aid in the evaluation of both peripheral and central vestibular pathologies. Establishing and availability of comprehensive normative data for these objective tests is crucial for clinicians and researchers alike...
June 2023: Curēus
https://read.qxmd.com/read/37190929/the-value-of-vestibular-graviceptive-pathway-evaluation-in-the-diagnosis-of-unilateral-peripheral-vestibular-dysfunction
#10
JOURNAL ARTICLE
Tong-Tong Zhao, Meng-Lu Zhang, Yu-Fei Feng, Qian-Qian Wang, Ning Song, Xu Yang, Xiao-Hong Ba
BACKGROUND: Evaluation of vestibular graviceptive pathway (VGP) in patients with unilateral peripheral vestibular dysfunction (UPVD) has received increasing attention from researchers. The study aimed to investigate the value of VGP evaluation in the diagnosis of UPVD. METHODS: Ninety-five UPVD patients were divided into attack and remission phase groups. VGP evaluation-related indicators, including subjective visual vertical (SVV), subjective visual horizontal (SVH), head tilt, ocular torsion (OT), and skew deviation (SD), were measured, and their correlations with cochleovestibular function test results were analyzed...
May 15, 2023: Brain and Behavior
https://read.qxmd.com/read/37076307/analyses-of-head-impulse-tests-in-patients-with-posterior-circulation-stroke-and-vestibular-neuritis
#11
JOURNAL ARTICLE
Sung-Hwan Kim, Sun-Uk Lee, Bang-Hoon Cho, Kyung-Hee Cho, Sungwook Yu, Byung-Jo Kim, Ji-Soo Kim
BACKGROUND AND OBJECTIVES: The interpretation of video head-impulse tests (video-HITs) can often be complicated, limiting their clinical utility in acute vestibular syndrome. We aimed to determine video-HIT findings in patients with posterior circulation strokes (PCSs) and vestibular neuritis (VN). METHODS: We retrospectively analyzed the results of video-HITs in 59 patients with PCS. Irrespective of the actual lesion revealed later on MRIs, ipsilateral and contralateral sides were assigned according to the direction of slow phase of spontaneous nystagmus (SN)...
June 6, 2023: Neurology
https://read.qxmd.com/read/36814996/video-head-impulse-testing-in-patients-with-isolated-hemi-nodular-infarction
#12
JOURNAL ARTICLE
Seung-Han Lee, Jae-Myung Kim, Joon-Tae Kim, Alexander Andrea Tarnutzer
BACKGROUND: Isolated (hemi)nodular strokes as underlying cause of acute dizziness are rare, thus there are still gaps of knowledge in the clinical presentation of affected patients. Clinical and experimental evidence has suggested that lesions involving the nodulus lead to various vestibulo-ocular deficits including prolonged velocity-storage, periodic-alternating nystagmus, positional nystagmus, abolished suppression of post-rotatory nystagmus by head-tilt and impaired verticality perception...
2023: Frontiers in Neurology
https://read.qxmd.com/read/36718034/test-retest-reliability-effects-of-age-and-comparison-of-horizontal-2-semicircular-canals-gain-values-between-head-impulse-and-suppression-head-impulse-paradigms
#13
JOURNAL ARTICLE
Sharifah Zainon Sayed, Nor Haniza Abdul Wahat, Azman Ali Raymond, Norhayati Hussein, Marniza Omar
BACKGROUND: This study investigates the test-retest reliability, aging effects, and differences in horizontal semicircular canals gain values between the head impulse paradigm and suppression head impulse paradigm. METHODS: Sixty healthy adult subjects aged 22-76-year-old (mean ± standard deviation=47.27 ± 18.29) participated in the head impulse paradigm and suppression head impulse paradigm using the video head impulse test. The Head impulse paradigm was used to assess all 6 semicircular canals, while suppression head impulse paradigm measured only the horizontal canals...
January 2023: Journal of International Advanced Otology
https://read.qxmd.com/read/36566345/modern-vestibular-tests-can-accurately-separate-stroke-and-vestibular-neuritis
#14
JOURNAL ARTICLE
Benjamin Nham, Chao Wang, Nicole Reid, Zeljka Calic, Belinda Y C Kwok, Deborah A Black, Andrew Bradshaw, GMichael Halmagyi, Miriam S Welgampola
OBJECTIVES: To separate posterior-circulation stroke (PCS) and vestibular-neuritis (VN) using quantitative vestibular tests. METHODS: Patients were prospectively recruited from the emergency room within 72 h of presentation. Video-nystagmography (VNG), three-dimensional video head-impulse testing (vHIT), vestibular-evoked myogenic potentials (VEMPs), and subjective visual-horizontal (SVH) were performed. RESULTS: There were 128 PCS and 134 VN patients...
April 2023: Journal of Neurology
https://read.qxmd.com/read/36534710/pediatric-vestibular-assessment-clinical-framework
#15
JOURNAL ARTICLE
Sarie Martens, Ingeborg Dhooge, Cleo Dhondt, Saartje Vanaudenaerde, Marieke Sucaet, Lotte Rombaut, Leen Maes
OBJECTIVES: Although vestibular deficits can have severe repercussions on the early motor development in children, vestibular assessment in young children has not yet been routinely integrated in clinical practice and clear diagnostic criteria to detect early vestibular deficits are lacking. In young children, specific adjustments of the test protocol are needed, and normative data are age-dependent as the vestibular pathways mature through childhood. Therefore, this study aims to demonstrate the feasibility of an extensive age-dependent vestibular test battery, to provide pediatric normative data with the concurrent age trends, and to offer a clinical framework for pediatric vestibular testing...
March 2023: Ear and Hearing
https://read.qxmd.com/read/36493551/posterior-circulation-stroke-diagnosis-in-unselected-group-of-acutely-dizzy-patients
#16
JOURNAL ARTICLE
S Kmetonyova, J Paulasova Schwabova, T Sramkova, M Dankova, A Olserova, M Petrzalka, A Tomek, J Jerabek
BACKGROUNDS: Diagnostics of a posterior circulation ischemia (POCI) in patients with acute vertigo is a challenging task. Recently, the combination of HINTS (Head Impulse, Nystagmus and Test of Skew) exam and ABCD2 has been recommended to identify stroke in these patients. Until now, studies regarding HINTS have mostly been tested on preselected patient groups and their results are only partially applicable to real clinical practice. AIMS: To compare the sensitivity and specificity of HINTS and ABCD2 and their combination in unselected acutely dizzy patients in the emergency department (ED) toward posterior circulation stroke detection...
January 2023: Clinical Neurology and Neurosurgery
https://read.qxmd.com/read/36453134/diagnostic-accuracy-of-the-physical-examination-in-emergency-department-patients-with-acute-vertigo-or-dizziness-a-systematic-review-and-meta-analysis-for-grace-3
#17
REVIEW
Vishal Paresh Shah, Lucas Oliveira J E Silva, Wigdan Farah, Mohamed O Seisa, Abdalla Kara Balla, April Christensen, Magdoleen Farah, Bashar Hasan, Fernanda Bellolio, M Hassan Murad
BACKGROUND: History and physical examination are key features to narrow the differential diagnosis of central versus peripheral causes in patients presenting with acute vertigo. We conducted a systematic review and meta-analysis of the diagnostic test accuracy of physical examination findings. METHODS: This study involved a patient-intervention-control-outcome (PICO) question: (P) adult ED patients with vertigo/dizziness; (I) presence/absence of specific physical examination findings; and (O) central (ischemic stroke, hemorrhage, others) versus peripheral etiology...
May 2023: Academic Emergency Medicine
https://read.qxmd.com/read/36226090/positive-horizontal-canal-head-impulse-test-is-not-a-benign-sign-for-acute-vestibular-syndrome-with-hearing-loss
#18
JOURNAL ARTICLE
Anand K Bery, Tzu-Pu Chang
BACKGROUND: Diagnosis of acute vestibular syndrome (AVS) with hearing loss is challenging because the leading vascular cause-AICA territory stroke-can appear benign on head impulse testing. We evaluated the diagnostic utility of various bedside oculomotor tests to discriminate imaging-positive and imaging-negative cases of AVS plus hearing loss. METHOD: We reviewed 13 consecutive inpatients with AVS and acute unilateral hearing loss. We compared neurologic findings, bedside and video head impulse testing (bHIT, vHIT), and other vestibular signs (including nystagmus, skew deviation, and positional testing) between MRI+ and MRI- cases...
2022: Frontiers in Neurology
https://read.qxmd.com/read/36088909/meta-analysis-of-the-use-of-head-impulse-test-and-head-impulse-test-with-direction-changing-nystagmus-and-test-of-skew-deviation-in-the-diagnosis-of-peripheral-vertigo-and-stroke
#19
Suyi Ooi, Grace Phillips, Tanya Tang, Luke Chen, Anthony Fok, John Ly, Henry Ma, Thanh G Phan
INTRODUCTION: The head impulse test (HIT) and HIT combined with direction-changing Nystagmus-Test of Skew deviation (HINTS) have been proposed as bedside tests to differentiate between peripheral and central causes of vertigo in the emergency department (ED). We conducted a meta-analysis of the HIT and HINTS tests to diagnose peripheral vertigo (PV) and central vertigo. METHODS: Pubmed, Google Scholar, EmBase, and articles references published in English up to July 2021 were searched for keywords "vertigo" or "acute vestibular syndrome" or "dizziness" and "head impulse" and "stroke...
2023: Cerebrovascular Diseases
https://read.qxmd.com/read/36054219/predicting-early-vestibular-and-motor-function-in-congenital-cytomegalovirus-infection
#20
JOURNAL ARTICLE
Cleo Dhondt, Leen Maes, Sarie Martens, Saartje Vanaudenaerde, Lotte Rombaut, Marieke Sucaet, Annelies Keymeulen, Helen Van Hoecke, Els De Leenheer, Ingeborg Dhooge
OBJECTIVES: Congenital cytomegalovirus (cCMV) can affect vestibular function, which is an important cornerstone for early motor development. This study aims to identify risk factors for early vestibular dysfunction with severe repercussions on the motor outcome. METHODS: This prospective cohort study included 169 cCMV-patients with complete vestibular assessment (lateral video Head Impulse Test and cervical Vestibular Evoked Myogenic Potentials) before the age of 18 months (mean 8...
September 2, 2022: Laryngoscope
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