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https://www.readbyqxmd.com/read/28212927/patients-with-chronic-dizziness-following-traumatic-head-injury-typically-have-multiple-diagnoses-involving-combined-peripheral-and-central-vestibular-dysfunction
#1
Q Arshad, R E Roberts, H Ahmad, R Lobo, M Patel, T Ham, D J Sharp, B M Seemungal
OBJECTIVE: We hypothesised that chronic vestibular symptoms (CVS) of imbalance and dizziness post-traumatic head injury (THI) may relate to: (i) the occurrence of multiple simultaneous vestibular diagnoses including both peripheral and central vestibular dysfunction in individual patients increasing the chance of missed diagnoses and suboptimal treatment; (ii) an impaired response to vestibular rehabilitation since the central mechanisms that mediate rehabilitation related brain plasticity may themselves be disrupted...
February 7, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28207627/letter-to-the-editor-regarding-oyewumi-m-wolter-ne-heon-e-gordon-ka-papsin-bc-cushing-sl-using-balance-function-to-screen-for-vestibular-impairment-in-children-with-sensorineural-hearing-loss-and-cochlear-implants
#2
https://www.readbyqxmd.com/read/28203219/toward-a-dynamic-probabilistic-model-for-vestibular-cognition
#3
Andrew W Ellis, Fred W Mast
We suggest that research in vestibular cognition will benefit from the theoretical framework of probabilistic models. This will aid in developing an understanding of how interactions between high-level cognition and low-level sensory processing might occur. Many such interactions have been shown experimentally; however, to date, no attempt has been made to systematically explore vestibular cognition by using computational modeling. It is widely assumed that mental imagery and perception share at least in part neural circuitry, and it has been proposed that mental simulation is closely connected to the brain's ability to make predictions...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28202828/-diagnosis-of-cochleovestibular-neurovascular-compression-syndrome-a-scoring-system-based-on-five-clinical-characteristics
#4
Tomomi Okamura, Takafumi Nishizaki, Norio Ikeda, Shigeki Nakano, Takanori Sakakura, Natsumi Fujii, Takeshi Okuda
: The optimal method for diagnosing cochleovestibular neurovascular compression syndrome(CNVC)remains controversial, and the aim of this study is to develop a standard diagnostic instrument for the condition. The clinical features of 53 sides of 50 patients with a combination of vertigo, tinnitus, and/or hearing loss were retrospectively evaluated. The following five clinical features were evaluated and given a score of 1 or 0:1)a long history of recurrent vertigo, tinnitus, or hearing loss;2)neurological findings related to positional vertigo, nystagmus, tinnitus, or hearing loss;3)neuro-otological findings involving tinnitus, audiometry, or vestibular testing;4)auditory brainstem response(ABR)evaluation with the detection of a low 25-75% II wave amplitude on the contralateral side and delayed interpeak latency in the I-III or I-V waves(usually low II wave amplitude combined with double peaks and a wide-based form)during ABR evaluation using 80 and 90dB clicks;and 5)the detection of vascular contact with the eighth cranial nerve on magnetic resonance imaging-constructive interference in steady state or air computed tomography imaging...
February 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28202575/models-of-utricular-bouton-afferents-role-of-afferent-hair-cell-connectivity-in-determining-spike-train-regularity
#5
William R Holmes, Janice A Huwe, Barbara Williams, Michael H Rowe, Ellengene H Peterson
Vestibular bouton afferent terminals in turtle utricle can be categorized into four types depending on their location and terminal arbor structure: lateral extrastriolar (LES), striolar, juxtastriolar, and medial extrastriolar (MES). The terminal arbors of these afferents differ in surface area, total length, collecting area, number of boutons, number of bouton contacts per hair cell and axon diameter (Huwe et al. 2015). To understand how differences in terminal morphology and the resulting hair cell inputs might affect afferent response properties, we modeled representative afferents from each region, using reconstructed bouton afferents (Huwe et al...
February 15, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28202097/independent-prescriber-physiotherapist-led-balance-clinic-the-southport-and-ormskirk-pathway
#6
L Burrows, T H Lesser, A V Kasbekar, N Roland, M Billing
OBJECTIVE: To report the introduction and impact of non-medical prescribing, initiated to improve patient pathways for those presenting with dizziness and balance disorders. METHODS: The Southport and Ormskirk physiotherapy-led vestibular clinic sees and treats all patients with dizziness and balance disorders referred to the ENT department. Letters are triaged by an audiologist, who also performs an otological examination and hearing test; this is followed by an assessment with the independent prescriber physiotherapist...
February 16, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28198681/hearing-and-vestibular-rehabilitation-with-a-focus-on-the-elderly
#7
Edward Fisher, Robin Youngs, Musheer Hussain, Jonathan Fishman
No abstract text is available yet for this article.
March 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28197672/functional-near-infrared-spectroscopy-fnirs-brain-imaging-of-multi-sensory-integration-during-computerized-dynamic-posturography-in-middle-aged-and-older-adults
#8
Chia-Cheng Lin, Jeffrey W Barker, Patrick J Sparto, Joseph M Furman, Theodore J Huppert
Studies suggest that aging affects the sensory re-weighting process, but the neuroimaging evidence is minimal. Functional Near-Infrared Spectroscopy (fNIRS) is a novel neuroimaging tool that can detect brain activities during dynamic movement condition. In this study, fNIRS was used to investigate the hemodynamic changes in the frontal-lateral, temporal-parietal, and occipital regions of interest (ROIs) during four sensory integration conditions that manipulated visual and somatosensory feedback in 15 middle-aged and 15 older adults...
February 14, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28197658/-vestibular-paroxysmia-and-paroxysmal-tinnitus
#9
P P Urban, R Brüning
No abstract text is available yet for this article.
February 14, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28196165/effect-of-cervical-collar-removal-on-the-fracture-load-of-anterior-zirconia-crowns
#10
Fernanda Campos, Mayra Cardoso, Renata Marques de Melo, Marco Antonio Bottino, Rodrigo Oa Souza
The objective of this study was to assess the influence of the extension of collar and fatigue cycling on the fracture load of anterior zirconia crowns. A total of 60 anterior full-crown preparations (central incisor) were machined in glass fiber-filled epoxy resin. Zirconia copings were designed and milled using computer-aided design/computer-assisted manufacture (thickness: buccal = 0.62 mm, lingual = 0.65 mm, incisal = 0.72 mm). The cervical collars (occlusogingival height = 0.8 mm, buccolingual width = 1...
March 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28195999/clinical-significance-of-arterial-stiffness-and-metabolic-syndrome-scores-in-vestibular-neuritis
#11
Jae Ho Chung, Seung Hwan Lee, Chul Won Park, Jin Hyeok Jeong, Jeong-Hun Shin
OBJECTIVE: To investigate the clinical significance of cardiovascular factors, including arterial stiffness and metabolic syndrome scores, in the development of vestibular neuritis. STUDY DESIGN: A prospective, case-control study. SETTING: Tertiary referral center. PATIENTS: Fifty-eight adult patients with vestibular neuritis (VN) and 58 age- and sex-matched controls were evaluated between January 2015 and January 2016...
February 10, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28195992/psychometric-properties-of-the-medical-outcomes-study-sleep-scale-in-spanish-postmenopausal-women
#12
Noelia Zagalaz-Anula, Fidel Hita-Contreras, Antonio Martínez-Amat, David Cruz-Díaz, Rafael Lomas-Vega
OBJECTIVE: This study aimed to analyze the reliability and validity of the Spanish version of the Medical Outcomes Study Sleep Scale (MOS-SS), and its ability to discriminate between poor and good sleepers among a Spanish population with vestibular disorders. METHODS: In all, 121 women (50-76 years old) completed the Spanish version of the MOS-SS. Internal consistency, test-retest reliability, and construct validity (exploratory factor analysis) were analyzed. Concurrent validity was evaluated using the Pittsburgh Sleep Quality Index and the 36-item Short Form Health Survey...
February 13, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28195750/dosimetric-analysis-of-neural-and-vascular-structures-in-skull-base-tumors-treated-with-stereotactic-radiosurgery
#13
Yarah M Haidar, Jay M Bhatt, Yaser Ghavami, Omid Moshtaghi, Amanda Schwer, Stafford Chenery, Hamid R Djalilian
Objective To examine the relationship between the prescribed target dose and the dose to healthy neurovascular structures in patients with vestibular schwannomas treated with stereotactic radiosurgery (SRS). Study Design Case series with chart review. Setting SRS center from 2011 to 2013. Subjects Twenty patients with vestibular schwannomas treated at the center from 2011 to 2013. Methods Twenty patients with vestibular schwannomas were included. The average radiation dose delivered to healthy neurovascular structures (eg, carotid artery, basilar artery, facial nerve, trigeminal nerve, and cochlea) was analyzed...
February 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28195255/evaluation-of-vestibular-biopsy-features-in-patients-affected-by-fibromyalgia-by-vulvodynia-or-by-their-association
#14
A Ghizzani, G Tinacci
OBJECTIVE: To evaluate the histologic features of vestibular biopsies from patients affected by fibro myalgia (FM), or vulvodynia (VD), or the their association (FM-VD) in order to facilitate differential diagnosis among conditions that present sexual pain with similar clinical characteristics. STUDY DESIGN: Fourty-four women already diagnosed with FM were recruited to evaluate the presence of sexual pain not owing to FM. Fourteen women affected by sexual pain of unknown origin who came to our department requesting treatment were also recruited...
December 2016: Pathologica
https://www.readbyqxmd.com/read/28195187/sensory-augmentation-integration-of-an-auditory-compass-signal-into-human-perception-of-space
#15
Frank Schumann, J Kevin O'Regan
Bio-mimetic approaches to restoring sensory function show great promise in that they rapidly produce perceptual experience, but have the disadvantage of being invasive. In contrast, sensory substitution approaches are non-invasive, but may lead to cognitive rather than perceptual experience. Here we introduce a new non-invasive approach that leads to fast and truly perceptual experience like bio-mimetic techniques. Instead of building on existing circuits at the neural level as done in bio-mimetics, we piggy-back on sensorimotor contingencies at the stimulus level...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194135/inaccurate-saccades-and-enhanced-vestibulo-ocular-reflex-suppression-during-combined-eye-head-movements-in-patients-with-chronic-neck-pain-possible-implications-for-cervical-vertigo
#16
Janine L Johnston, Pierre M Daye, Glen T D Thomson
BACKGROUND: The primate ocular motor system is designed to acquire peripheral targets of interest by coordinating visual, vestibular, and neck muscle activation signals. The vestibulo-ocular reflex (VOR) is greatly reduced at the onset of large eye-head (gaze) saccades and resumes before the end of the saccades to stabilize eye-in-orbit and ensure accurate target acquisition. Previous studies have relied on manipulating head movements in normal individuals to study VOR suppression and gaze kinematics...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28194100/head-stability-and-head-trunk-coordination-in-horseback-riders-the-contribution-of-visual-information-according-to-expertise
#17
Agnès Olivier, Elise Faugloire, Laure Lejeune, Sophie Biau, Brice Isableu
Maintaining equilibrium while riding a horse is a challenging task that involves complex sensorimotor processes. We evaluated the relative contribution of visual information (static or dynamic) to horseback riders' postural stability (measured from the variability of segment position in space) and the coordination modes they adopted to regulate balance according to their level of expertise. Riders' perceptual typologies and their possible relation to postural stability were also assessed. Our main assumption was that the contribution of visual information to postural control would be reduced among expert riders in favor of vestibular and somesthetic reliance...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28193178/nodal-and-bmp-expression-during-the-transition-to-pentamery-in-the-sea-urchin-heliocidaris-erythrogramma-insights-into-patterning-the-enigmatic-echinoderm-body-plan
#18
Demian Koop, Paula Cisternas, Valerie B Morris, Dario Strbenac, Jean Yee Hwa Yang, Gregory A Wray, Maria Byrne
BACKGROUND: The molecular mechanisms underlying the development of the unusual echinoderm pentameral body plan and their likeness to mechanisms underlying the development of the bilateral plans of other deuterostomes are of interest in tracing body plan evolution. In this first study of the spatial expression of genes associated with Nodal and BMP2/4 signalling during the transition to pentamery in sea urchins, we investigate Heliocidaris erythrogramma, a species that provides access to the developing adult rudiment within days of fertilization...
February 13, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28192379/compensatory-saccades-are-associated-with-physical-performance-in-older-adults-data-from-the-baltimore-longitudinal-study-of-aging
#19
Yanjun Xie, Eric R Anson, Eleanor M Simonsick, Stephanie A Studenski, Yuri Agrawal
OBJECTIVE: To determine whether compensatory saccade metrics observed in the video head impulse test, specifically saccade amplitude and latency, predict physical performance. STUDY DESIGN: Cross-sectional analysis of the Baltimore Longitudinal Study of Aging, a prospective cohort study. SETTING: National Institute on Aging Intramural Research Program Clinical Research Unit in Baltimore, Maryland. PATIENTS: Community-dwelling older adults...
March 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28192265/microsurgical-outcomes-after-gross-total-resection-on-vestibular-schwannoma-in-the-elderly-a-matched-cohort-study
#20
Nian Jiang, Zaibin Wang, Wen Chen, Yuanyang Xie, Zefeng Peng, Jian Yuan, Siyi Wanggou, Yandong Su, Xuejun Li, Xianrui Yuan
OBJECTIVES: To compare and analyze the differences in clinical manifestations and surgical outcomes after gross total resection (GTR) for vestibular schwannoma (VS) between elderly and younger patients. METHODS: We conducted a retrospective study of 40 elderly (≥65 years) and 40 younger (< 65 years) patients, and matched operation dates and tumor size in the 2 groups were matched. All 80 patients underwent microsurgical resection though the sigmoid approach, by the same surgeon (Professor Xianrui Yuan, M...
February 9, 2017: World Neurosurgery
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