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

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https://www.readbyqxmd.com/read/30012022/long-term-effects-of-vestibular-rehabilitation-and-head-mounted-gaming-task-procedure-in-unilateral-vestibular-hypofunction-a-12-month-follow-up-of-a-randomized-controlled-trial
#1
Andrea Viziano, Alessandro Micarelli, Ivan Augimeri, Domenico Micarelli, Marco Alessandrini
OBJECTIVE: To investigate the long-term effects of adding virtual reality-based home exercises to vestibular rehabilitation in people with unilateral vestibular hypofunction. DESIGN: Follow-up otoneurological examination in two randomized groups following a previous one-month trial. SETTING: Tertiary rehabilitation center. SUBJECTS: A total of 47 patients with unilateral vestibular hypofunction, one group ( n = 24) undergoing conventional vestibular rehabilitation and the other one ( n = 23) implementing, in addition, head-mounted gaming home exercises, 20 minutes per day for one month...
July 1, 2018: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29757361/effects-of-rhinoplasty-on-labyrinthine-function
#2
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/29649051/comparison-of-video-head-impulse-test-vhit-gains-between-two-commercially-available-devices-and-by-different-gain-analytical-methods
#3
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...
June 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29533335/video-head-impulse-test-vhit-the-role-of-corrective-saccades-in-identifying-patients-with-vestibular-loss
#4
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
#5
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/29234822/-acute-vestibular-syndrome-clinical-examination-outperforms-mri-in-the-detection-of-central-lesions
#6
REVIEW
F Thömke
A significant number of patients who seek medical treatment in an emergency department because of vertigo or dizziness, suffer from acute vestibular syndrome. This is characterized by sustained vertigo, horizontal or horizontal rotatory jerk nystagmus, and unsteady stance and gait. In the acute situation it is crucial to differentiate patients with a peripheral vestibular disorder from those with a central disease. A number of recent studies have shown that a structured clinical examination enables a reliable differential diagnosis of central or peripheral disorders...
December 12, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/29208731/misleading-signs-in-acute-vertigo
#7
Sean Lance, Stuart Scott Mossman
The acute vestibular syndrome is common and usually has a benign cause. Sometimes, however, even experienced neurologists can find it difficult to determine the cause clinically. Furthermore, neuroimaging is known to be insensitive.We describe two cases of acute vestibular syndrome where conflicting clinical findings contributed to a delay in making the correct diagnosis. The first patient with symptomatic vertigo had signs consistent with horizontal benign paroxysmal positional vertigo but also had an abnormal horizontal head impulse test, superficially suggesting acute vestibular neuritis but later accounted for by the finding of a vestibular schwannoma (acoustic neuroma)...
April 2018: Practical Neurology
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
#8
COMPARATIVE STUDY
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/29064825/development-of-a-new-software-and-test-setup-for-analyzing-hvor-in-very-young-children-by-vhit
#9
Angela Wenzel, Simon Eck, Kathrin Hülse, Karl Rohr, Karl Hörmann, Claudia Umbreit, Manfred Hülse, Roland Hülse
INTRODUCTION: Earlier work revealed that vHIT examination is often difficult to perform on very young children. In particular, the calibration of the system can be difficult, as active cooperation of the patient is required. Additionally, the patient must be able to follow the examiner's instructions, which is challenging for very young children. Therefore, the aim of the present study was to develop and validate a new, software-based approach enabling vHIT testing of young children and infants...
2017: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/28767521/disabling-central-paroxysmal-positioning-upbeat-nystagmus-and-vertigo-associated-with-the-presence-of-anti-glutamic-acid-decarboxylase-antibodies
#10
Ana I Martins, João N Carvalho, Ana M Amorim, Argemiro Geraldo, Eric Eggenberger, João Lemos
An immune attack by anti-glutamic acid decarboxylase (GAD) antibodies is believed to cause a deficiency in gamma-aminobutyric acid-mediated neurotransmission in the cerebellum. This, in turn, leads to several eye movement disorders, including spontaneous downbeat (DBN) and periodic alternating nystagmus. We describe a 68-year-old diabetic woman with disabling paroxysmal positioning upbeat nystagmus (UBN) exclusively in the supine position, associated with asymptomatic spontaneous DBN, alternating skew deviation and hyperactive vestibulo-ocular reflex responses on head impulse testing, in whom high titers of anti-GAD antibodies were detected...
March 2018: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28496432/vestibular-loss-in-older-adults-is-associated-with-impaired-spatial-navigation-data-from-the-triangle-completion-task
#11
Yanjun Xie, Robin T Bigelow, Scott F Frankenthaler, Stephanie A Studenski, Scott D Moffat, Yuri Agrawal
BACKGROUND: Vestibular inputs have been shown to play a critical role in spatial navigation. In this study, we sought to evaluate whether vestibular loss due to aging contributes to impaired spatial navigation as measured by the triangle completion task (TCT). MATERIALS AND METHODS: We recruited three types of participants: young controls <55 years of age, older controls ≥55 years of age, and older patients from a Neurotology Clinic with evidence of vestibular physiologic impairment but who did not have any known vestibular disorder...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28484820/-vertigo-and-dizziness-in-the-emergency-room
#12
REVIEW
A Zwergal, K Möhwald, M Dieterich
Vertigo and dizziness are among the most common chief complaints in the emergency department. Etiologies can be categorized into three subgroups: neurootological (vestibular), medical (especially cardiovascular, metabolic), and psychiatric disorders. The diagnostic approach in the emergency department is based on a systematic analysis of case history (type, time course of symptoms, modulating factors, associated symptoms), clinical examination of the vestibular, ocular motor, and cerebellar systems (head impulse test, nystagmus, skew deviation, positioning maneuver, test of gait and stance), as well as a basal monitoring (vital signs, 12-lead ECG, blood tests)...
June 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28429801/the-dizzy-patient-don-t-forget-disorders-of-the-central-vestibular-system
#13
REVIEW
Thomas Brandt, Marianne Dieterich
Vertigo and dizziness are among the most common complaints in neurology clinics, and they account for about 13% of the patients entering emergency units. In this Review, we focus on central vestibular disorders, which are mostly attributable to acute unilateral lesions of the bilateral vestibular circuitry in the brain. In a tertiary interdisciplinary outpatient dizziness unit, central vestibular disorders, including vestibular migraine, comprise about 25% of the established diagnoses. The signs and symptoms of these disorders can mimic those of peripheral vestibular disorders with sustained rotational vertigo...
June 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/27855460/-diagnosis-and-current-therapy-of-vestibular-syndromes
#14
REVIEW
Michael Strupp, Thomas Brandt
Vertigo and dizziness are with an annual incidence of more than 10% and a lifetime prevalence of more than 30% among the most frequent symptoms. The keys to the diagnosis are the patient history and the bedside examination: a) for the patient history the time course, type and triggers of symptoms and accompanying symptoms, b) for the clinical examination of the vestibular system the head-impulse test (HIT), the examination for a spontaneous nystagmus, a displacement of subjective visual vertical, a positional nystagmus and the Romberg test, and c) for the differentiation between an acute peripheral and central vestibular lesion the skew deviation, central fixation nystagmus, gaze-evoked nystagmus, saccadic smooth pursuit and a normal HIT...
November 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27733568/nucleus-prepositus-hypoglossi-lesions-produce-a-unique-ocular-motor-syndrome
#15
Sung-Hee Kim, David S Zee, Sascha du Lac, Hyo Jung Kim, Ji-Soo Kim
OBJECTIVE: To describe the ocular motor abnormalities in 9 patients with a lesion involving the nucleus prepositus hypoglossi (NPH), a key constituent of a vestibular-cerebellar-brainstem neural network that ensures that the eyes are held steady in all positions of gaze. METHODS: We recorded eye movements, including the vestibulo-ocular reflex during head impulses, in patients with vertigo and a lesion involving the NPH. RESULTS: Our patients showed an ipsilesional-beating spontaneous nystagmus, horizontal gaze-evoked nystagmus more intense on looking toward the ipsilesional side, impaired pursuit more to the ipsilesional side, central patterns of head-shaking nystagmus, contralateral eye deviation, and decreased vestibulo-ocular reflex gain during contralesionally directed head impulses...
November 8, 2016: Neurology
https://www.readbyqxmd.com/read/27545414/vestibular-neuritis-involvement-and-long-term-recovery-of-individual-semicircular-canals
#16
Bela Büki, Manuela Hanschek, Heinz Jünger
OBJECTIVE: In this retrospective study, the aim of the authors was to examine the frequency of involvement of the individual semicircular canals (SCCs) in vestibular neuritis (VN) and to assess the degree of long-term recovery. A secondary aim was to retrospectively determine the usefulness of a three-step bedside oculomotor test (the HINTS-test) for the differential diagnosis of peripheral VN. METHODS: 44 cases were evaluated during the acute phase and approximately two months later...
June 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27464281/-clinical-examination-of-vertigo
#17
Helge Roland Topka
Acute vertigo may originate from peripheral or central vestibular disorders. As central vestibular symptoms may indicate severe brainstem or cerebellar ischemia, rapid clinical differentiation is required. To this end, evaluation of spontaneous or gaze-evoked nystagm, head-impulse test as well identification of skew deviation are most helpful.
July 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27438868/hearing-and-vestibular-function-after-preoperative-intratympanic-gentamicin-therapy-for-vestibular-schwanomma-as-part-of-vestibular-prehab
#18
Fredrik Tjernström, Per-Anders Fransson, Babar Kahlon, Mikael Karlberg, Sven Lindberg, Peter Siesjö, Måns Magnusson
OBJECTIVE: To evaluate auditory and vestibular function after presurgical treatment with gentamicin in schwannoma patients. BACKGROUND: The vestibular PREHAB protocol aims at diminishing the remaining vestibular function before vestibular schwannoma surgery, to ensure less acute symptoms from surgery, and initiate a more efficient vestibular rehabilitation already before surgery. However, the potential cochleotoxicity of gentamicin is a concern, since modern schwannoma surgery strives to preserve hearing...
November 2016: Ear and Hearing
https://www.readbyqxmd.com/read/27328962/video-head-impulse-test-a-review-of-the-literature
#19
REVIEW
Salman F Alhabib, Issam Saliba
Video head impulse test (vHIT) is a new testing which able to identify the overt and covert saccades and study the gain of vestibulo-ocular reflex (VOR) of each semicircular canal. The aim of this study is to review the clinical use of vHIT in patients with vestibular disorders in different diseases. PubMed and Cochrane databases were searched for all articles that defined vHIT, compared vHIT with another clinical test, and studied the efficacy of vHIT as diagnostic tools with vestibular disease. 37 articles about vHIT were reviewed...
March 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/26463694/dorsal-medullary-infarction-distinct-syndrome-of-isolated-central-vestibulopathy
#20
Sun-Uk Lee, Seong-Ho Park, Jeong-Jin Park, Hyo Jung Kim, Moon-Ku Han, Hee-Joon Bae, Ji-Soo Kim
BACKGROUND AND PURPOSE: The characteristics of infarctions restricted to the dorsal medulla have received little attention. This study aimed to define the distinct clinical features of dorsal medullary infarction. METHODS: Of the 172 patients with a diagnosis of medullary infarction at Seoul National University Bundang Hospital from 2003 to 2014, 18 patients with isolated dorsal medullary infarction were subjected to analyses of clinical and laboratory findings...
November 2015: Stroke; a Journal of Cerebral Circulation
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