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Vestibular testing

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https://www.readbyqxmd.com/read/27918366/oculographic-clinical-test-of-sensory-integration-and-balance-and-computerized-dynamic-posturography-findings-in-patients-with-psoriatic-arthritis
#1
Juan Carlos Amor-Dorado, Maria P Barreira-Fernandez, Javier Llorca, Miguel A Gonzalez-Gay
OBJECTIVE: To assess the frequency and characteristics of the oculographic findings and the usefulness of the clinical test of sensory integration and balance (CTSIB) for the evaluation of balance in patients with psoriatic arthritis (PsA) by comparing this test with the computerized dynamic posturography (CDP). STUDY DESIGN: A series of consecutive patients that fulfilled the Moll and Wright criteria for PsA and matched controls were studied. SETTING: The study was performed at the Otolaryngology Division of a tertiary reference center...
December 1, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27910089/bilateral-endolymphatic-hydrops-in-a-patient-with-migraine-variant-without-vertigo-a-case-report
#2
Isabelle Y Liu, Akira Ishiyama, Ali R Sepahdari, Kevin Johnson, Gail Ishiyama
OBJECTIVE: To use modern high-resolution inner ear imaging modalities to evaluate for endolymphatic hydrops (EH) in a patient with migraine-associated fluctuating hearing loss without vertigo spells or dizziness. BACKGROUND: EH has been well described in patients with Meniere's disease on both human temporal bone studies and modern high-resolution imaging; however, there is no study to date, to our knowledge, that examines the presence of EH in a patient with migraine and bilateral hearing loss...
December 2, 2016: Headache
https://www.readbyqxmd.com/read/27905190/the-diagnostic-accuracy-of-non-imaging-screening-protocols-for-vestibular-schwannoma-in-patients-with-asymmetrical-hearing-loss-and-or-unilateral-audiovestibular-dysfunction-a-diagnostic-review-and-meta-analysis
#3
M Hentschel, M Scholte, S Steens, H Kunst, M Rovers
BACKGROUND: Currently, all patients presenting with asymmetrical sensorineural hearing loss and/or unilateral audiovestibular dysfunction (i.e. tinnitus, dizziness) undergo MRI, leading to a substantial amount of MRIs with negative findings as the incidence of vestibular schwannoma (VS) in this screening population varies between 1% and 4.7% (i.e. more than 95% of MRIs are negative for VS). OBJECTIVE OF REVIEW: The aim was to assess the diagnostic accuracy of different non-imaging screening protocols that can be used prior to MRI to select patients at high risk of VS...
November 5, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27903187/stereotactic-diffusion-tensor-imaging-tractography-for-gamma-knife-radiosurgery
#4
Cormac G Gavin, H Ian Sabin
OBJECTIVE The integration of modern neuroimaging into treatment planning has increased the therapeutic potential and safety of stereotactic radiosurgery. The authors report their method of integrating stereotactic diffusion tensor imaging (DTI) tractography into conventional treatment planning for Gamma Knife radiosurgery (GKRS). The aim of this study was to demonstrate the feasibility of this technique and to address some of the technical limitations of previously reported techniques. METHODS Twenty patients who underwent GKRS composed the study cohort...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27898608/effect-of-spatial-orientation-of-the-horizontal-semicircular-canal-on-the-vestibulo-ocular-reflex
#5
Rebecca Maxwell, Constantin von Kirschbaum, Claudia Jerin, Nadine Lehnen, Eike Krause, Robert Gürkov
OBJECTIVE: To determine if an alignment of the horizontal semi-circular canal (hSCC) with the plane of rotation would enhance the vestibular-ocular reflex (VOR) gain result as it has been previously suggested. STUDY DESIGN: Comparative study of a physiological vestibular function test in healthy subjects. SETTING: Tertiary referral center for otology and neurotology. PATIENTS: Twenty two healthy volunteers were recruited for this study...
November 24, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27894374/autologous-intratympanic-blood-patch-for-presumed-perilymphatic-fistulas
#6
P K Foster
OBJECTIVE: To assess an alternative to bed rest and surgery for suspected perilymphatic fistulas using intratympanic blood injections. METHOD: A review was conducted of patients' history, physical and audiometric data, before and after treatment by intratympanic blood injections performed from 2009 to 2015. RESULTS: Twelve ears were identified, with trauma associated with air travel, water sports or nose blowing. Ten of these cases had hearing loss, six had vestibular symptoms...
November 29, 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27889628/effect-of-betel-nut-chewing-on-the-otolithic-reflex-system
#7
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...
October 13, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27879529/morphometric-study-of-the-vestibular-aqueduct-in-patients-with-enlarged-vestibular-aqueduct
#8
Huiying Lyu, Keguang Chen, Youzhou Xie, Lin Yang, Tianyu Zhang, Peidong Dai
OBJECTIVE: To test whether there are significant differences in the morphologic features of the enlarged vestibular aqueduct (EVA) and its anatomic relationships with adjacent structures between EVA patients with and without other inner ear malformations. METHODS: The morphology of vestibular aqueduct, volume of vestibule, and anatomic location of facial nerve (FN) were compared among 3 groups. Group A, 18 control subjects; group B, 32 EVA patients without other inner ear malformations; group C, 14 EVA patients with other inner ear malformations...
November 23, 2016: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/27878442/clinical-and-neurophysiological-risk-factors-for-falls-in-patients-with-bilateral-vestibulopathy
#9
Roman Schniepp, Cornelia Schlick, Fabian Schenkel, Cauchy Pradhan, Klaus Jahn, Thomas Brandt, Max Wuehr
Patients with bilateral vestibular failure (BVF) exhibit imbalance when standing and walking that is linked to a higher fall risk. The purpose of this study was to identify risk factors for falls in BVF. We therefore systematically investigated the interrelationship of clinical and demographic characteristics, gait impairments, and the fall frequency of these patients. Clinical and demographic characteristics as well as quantitative measures of gait performance on a pressure-sensitive gait carpet were collected from 55 patients with different etiologies of BVF...
November 22, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27863454/sensory-organisation-and-reactive-balance-control-of-amateur-rugby-players-a-cross-sectional-study
#10
Gary C C Chow, Joanne W Y Chung, Ada W W Ma, Duncan J Macfarlane, Shirley S M Fong
PURPOSE: This study compared the sensory organisation and reactive balance control of amateur rugby players and a control group. METHODS: Forty-one amateur rugby players (22 males: 19 females; mean height ± SD = 168.8 ± 8.8 cm; mean weight ± SD = 63.9 ± 12.5 kg) and 31 control participants (22 males: 9 females; mean height ± SD = 171.5 ± 10.3 cm; mean weight ± SD = 63.8 ± 10.3 kg) completed the study...
November 18, 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27861194/cochlear-implantation-in-m%C3%A3-ni%C3%A3-re-s-disease-with-and-without-labyrinthectomy
#11
Payal Mukherjee, Kate Eykamp, Daniel Brown, Ian Curthoys, Sean Flanagan, Nigel Biggs, Celene McNeill, William Gibson
OBJECTIVE: To investigate outcomes of cochlear implantation (CI) in patients with Ménière's disease (MD) with and without surgical labyrinthectomy. STUDY DESIGN: Retrospective study. SETTING: Multiple tertiary referral centers. SUBJECTS: Thirty one ears from 27 patients (17 men, 10 women, aged 42-84) with CI in ipsilateral MD ear. INTERVENTION: CI in ears with intact labyrinths (Group 1), CI with simultaneous surgical labyrinthectomy (Group 2), and CI sequential to surgical labyrinthectomy (Group 3)...
November 16, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27861193/a-comparison-of-surgical-treatments-for-superior-semicircular-canal-dehiscence-a-systematic-review
#12
Fuat Ziylan, Ahmet Kinaci, Andy J Beynon, Henricus P M Kunst
OBJECTIVE: We investigate the postoperative subjective and objective outcomes of different surgical treatments for superior semicircular canal dehiscence (SSCD): vestibular signs, auditory signs, vestibular evoked myogenic potential test, pure tone audiogram, speech audiogram, or video-nystagmography. DATA SOURCES: An electronic search performed in the PubMed, Cochrane Library, and EMBASE databases on 15th of September 2015. A systematic search was conducted. Articles were included if written in English, Dutch, German, or French language...
November 16, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27856148/evaluation-of-benign-paroxysmal-positional-vertigo-following-le-fort-i-osteotomy
#13
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...
November 14, 2016: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27855460/-diagnosis-and-current-therapy-of-vestibular-syndromes
#14
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/27847985/acute-peripheral-vestibular-deficit-increases-redundancy-in-random-number-generation
#15
Ivan Moser, Dominique Vibert, Marco D Caversaccio, Fred W Mast
Unilateral peripheral vestibular deficit leads to broad cognitive difficulties and biases in spatial orientation. More specifically, vestibular patients typically show a spatial bias toward their affected ear in the subjective visual vertical, head and trunk orientation, fall tendency, and walking trajectory. By means of a random number generation task, we set out to investigate how an acute peripheral vestibular deficit affects the mental representation of numbers in space. Furthermore, the random number generation task allowed us to test if patients with peripheral vestibular deficit show evidence of impaired executive functions while keeping the head straight and while performing active head turns...
November 15, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27835042/cervical-injury-assessments-for-concussion-evaluation-a-review
#16
Kelly Cheever, Keisuke Kawata, Ryan Tierney, Anne Galgon
BACKGROUND:   A concussion is a complex pathophysiologic process that is induced by biomechanical forces and affects the brain. Cervical injuries and concussion can share similar mechanisms and nearly identical symptoms or causes. Therefore, symptoms or causes alone may be insufficient to differentiate between patients with a concussion and patients with cervical injuries. OBJECTIVE:   To demonstrate the homogeneous causes and symptoms observed in patients with a concussion and patients with cervical injury and to provide information on clinical tests that can differentiate cervical injury from pathologic conditions of vestibular or central origin...
November 1, 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27834667/validity-and-reliability-of-the-vestibular-ocular-motor-screening-and-associations-with-common-concussion-screening-tools
#17
Amy M Yorke, Laura Smith, Mitch Babcock, Bara Alsalaheen
BACKGROUND: Sustaining a concussion commonly results in vestibular impairments that may be associated with balance deficits. To screen for vestibular impairments after a concussion, the Vestibular/Ocular Motor Screening (VOMS) tool was developed. The relationship between the VOMS and other concussion screening tools, such as the Balance Error Scoring System (BESS) and King-Devick (K-D), have not been explored. HYPOTHESES: (1) VOMS would provide reliable results and not provoke symptoms in healthy adolescents and (2) VOMS test items would measure related aspects of vestibular function that are not measured through the BESS or K-D...
November 10, 2016: Sports Health
https://www.readbyqxmd.com/read/27834538/the-chronic-effects-of-neurotrauma-consortium-cenc-multi-centre-observational-study-description-of-study-and-characteristics-of-early-participants
#18
W C Walker, W Carne, L M Franke, T Nolen, S D Dikmen, D X Cifu, K Wilson, H G Belanger, R Williams
PRIMARY OBJECTIVES: To establish and comprehensively evaluate a large cohort of US veterans who served in recent military conflicts in order to better understand possible chronic and late-life effects of mild traumatic brain injury (mTBI), including those that may stem from neurodegeneration. RESEARCH DESIGN: Cross-sectional and prospective longitudinal. METHODS AND PROCEDURES: Inclusion criteria are prior combat exposure and deployment(s) in Operation Enduring Freedom, Operation Iraqi Freedom or one of their follow-on conflicts (collectively OEF/OIF)...
2016: Brain Injury: [BI]
https://www.readbyqxmd.com/read/27834534/vestibular-balance-microvascular-and-white-matter-neuroimaging-characteristics-of-blast-injuries-and-mild-traumatic-brain-injury-four-case-reports
#19
Ramtilak Gattu, Faith W Akin, Anthony T Cacace, Courtney D Hall, Owen D Murnane, E Mark Haacke
BACKGROUND: Case reports are presented on four Veterans, aged 29-46 years, who complained of chronic dizziness and/or postural instability following blast exposures. Two of the four individuals were diagnosed with mild traumatic brain injury and three of the four were exposed to multiple blasts. Comprehensive vestibular, balance, gait, audiometry and neuroimaging procedures were used to characterize their injuries. CASE REPORT: Vestibular assessment included videonystagmography, rotary chair and cervical and ocular vestibular evoked myogenic potentials...
2016: Brain Injury: [BI]
https://www.readbyqxmd.com/read/27826696/cad-cam-milled-removable-complete-dentures-an-in-vitro-evaluation-of-trueness
#20
Murali Srinivasan, Yoann Cantin, Albert Mehl, Harald Gjengedal, Frauke Müller, Martin Schimmel
OBJECTIVES: This study aimed to compare the trueness of one type of CAD/CAM milled complete removable dental prostheses (CRDPs) with injection-molding and conventionally manufactured CRDPs. MATERIALS AND METHODS: Thirty-three CRDPs were fabricated by three different manufacturing techniques (group CAD/CAM (AvaDent™): n = 11; group injection molding (Ivocap™): n = 11; group flask-pack-press: n = 11) using a single master reference model and incubated in artificial saliva for 21 days...
November 8, 2016: Clinical Oral Investigations
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