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Vestibular disorders

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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/27910108/a-day-in-the-life-of-a-m%C3%A3-ni%C3%A3-re-s-patient-understanding-the-lived-experiences-and-mental-health-impacts-of-m%C3%A3-ni%C3%A3-re-s-disease
#2
Sarah L Bell, Jessica Tyrrell, Cassandra Phoenix
Concepts of social practice are increasingly being used to understand experiences of everyday life, particularly in relation to consumption and healthy lifestyles. This article builds on this in the context of lives disrupted and reshaped by chronic illness. It uses social practice theory to examine the lived experiences of individuals with Ménière's disease; a long-term progressive vestibular disorder, defined by episodes of severe and debilitating vertigo, aural fullness, tinnitus and sensorineural hearing loss...
December 2, 2016: Sociology of Health & Illness
https://www.readbyqxmd.com/read/27903178/worldwide-variance-in-the-potential-utilization-of-gamma-knife-radiosurgery
#3
Travis Hamilton, L Dade Lunsford
OBJECTIVE The role of Gamma Knife radiosurgery (GKRS) has expanded worldwide during the past 3 decades. The authors sought to evaluate whether experienced users vary in their estimate of its potential use. METHODS Sixty-six current Gamma Knife users from 24 countries responded to an electronic survey. They estimated the potential role of GKRS for benign and malignant tumors, vascular malformations, and functional disorders. These estimates were compared with published disease epidemiological statistics and the 2014 use reports provided by the Leksell Gamma Knife Society (16,750 cases)...
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
#4
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/27874167/-antibiotics-and-gait-disorders
#5
REVIEW
P Gomez-Porro, A Vinagre-Aragon, J A Zabala-Goiburu
The neurological toxicity of many antibiotics has been reported in a number of articles and clinical notes. In this review antibiotics are classified according to the physiopathogenic mechanism that can give rise to a gait disorder, taking both clinical and experimental data into account. An exhaustive search was conducted in Google Scholar and PubMed with the aim of finding reviews, articles and clinical cases dealing with gait disorders secondary to different antibiotics. The different antibiotics were separated according to the physiopathogenic mechanism that could cause them to trigger a gait disorder...
December 1, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/27871453/chasing-dizzy-chimera-diagnosis-of-combined-peripheral-and-central-vestibulopathy
#6
Seo-Young Choi, Hyo-Jung Kim, Ji-Soo Kim
Diagnosis of combined peripheral and central vestibulopathy remains a challenge since the findings from peripheral vestibular involvements may overshadow those from central vestibular disorders or vice versa. The aim of this study was to enhance detection of these intriguing disorders by characterizing the clinical features and underlying etiologies. We had recruited 55 patients with combined peripheral and central vestibulopathy at the Dizziness Clinic of Seoul National University Bundang Hospital from 2003 to 2013...
December 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27856360/sensitivity-to-isoflurane-anesthesia-increases-in-autism-spectrum-disorder-shank3-%C3%A2-c-mutant-mouse-model
#7
Changsheng Li, Michele Schaefer, Christy Gray, Ya Yang, Orion Furmanski, Sufang Liu, Paul Worley, C David Mintz, Feng Tao, Roger A Johns
Autism is a heterogeneous developmental disorder characterized by impaired social interaction, impaired communication skills, and restricted and repetitive behavior. The abnormal behaviors of these patients can make their anesthetic and perioperative management difficult. Evidence in the literature suggests that some patients with autism or specific autism spectrum disorders (ASD) exhibit altered responses to pain and to anesthesia or sedation. A genetic mouse model of one particular ASD, Phelan McDermid Syndrome, has been developed that has a Shank3 haplotype truncation (Shank3(+/Δc))...
November 14, 2016: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/27856148/evaluation-of-benign-paroxysmal-positional-vertigo-following-le-fort-i-osteotomy
#8
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/27845944/the-vestibular-system-and-cognition
#9
Paul F Smith
PURPOSE OF REVIEW: The last year has seen a great deal of new information published relating vestibular dysfunction to cognitive impairment in humans, especially in the elderly. The objective of this review is to summarize and critically evaluate this new evidence in the context of the previous literature. RECENT FINDINGS: This review will address the recent epidemiological/survey studies that link vestibular dysfunction with cognitive impairment in the elderly; recent clinical investigations into cognitive impairment in the context of vestibular dysfunction, both in the elderly and in the cases of otic capsule dehiscence and partial bilateral vestibulopathy; recent evidence that vestibular impairment is associated with hippocampal atrophy; and finally recent evidence relating to the hypothesis that vestibular dysfunction could be a risk factor for dementia...
November 10, 2016: Current Opinion in Neurology
https://www.readbyqxmd.com/read/27822199/clinical-subgroups-in-bilateral-meniere-disease
#10
Lidia Frejo, Andres Soto-Varela, Sofía Santos-Perez, Ismael Aran, Angel Batuecas-Caletrio, Vanesa Perez-Guillen, Herminio Perez-Garrigues, Jesus Fraile, Eduardo Martin-Sanz, Maria C Tapia, Gabriel Trinidad, Ana María García-Arumi, Rocío González-Aguado, Juan M Espinosa-Sanchez, Pedro Marques, Paz Perez, Jesus Benitez, Jose A Lopez-Escamez
Meniere disease (MD) is a heterogeneous clinical condition characterized by sensorineural hearing loss, episodic vestibular symptoms, and tinnitus associated with several comorbidities, such as migraine or autoimmune disorders (AD). The frequency of bilateral involvement may range from 5 to 50%, and it depends on the duration of the disease. We have performed a two-step cluster analysis in 398 patients with bilateral MD (BMD) to identify the best predictors to define clinical subgroups with a potential different etiology to improve the phenotyping of BMD and to develop new treatments...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27821976/recent-advances-in-the-understanding-of-vestibular-migraine
#11
REVIEW
Jong-Hee Sohn
Approximately 1% of the general population and 10% of patients with migraine suffer from vestibular migraine (VM). However, this condition remains relatively unknown; therefore, it is often underdiagnosed despite the recent adoption of international diagnostic criteria for VM. The diagnosis of VM is based on the symptoms, degree, frequency, and duration of the vestibular episodes, a history of migraine, the temporal association of migraine symptoms with vestibular episodes in at least 50% of cases, and the exclusion of other causes...
2016: Behavioural Neurology
https://www.readbyqxmd.com/read/27814314/chronic-subjective-dizziness-analysis-of%C3%A2-underlying-personality-factors
#12
G Chiarella, C Petrolo, R Riccelli, L Giofrè, G Olivadese, F M Gioacchini, A Scarpa, E Cassandro, L Passamonti
BACKGROUND: Chronic subjective dizziness (CSD) is characterized by persistent dizziness, unsteadiness, and hypersensitivity to one's own motion or exposure to complex visual stimuli. CSD may be triggered, in predisposed individuals with specific personality traits, by acute vestibular diseases. CSD is also thought to arise from failure to re-establish normal balance strategies after resolution of acute vestibular events which may be modulated by diathesis to develop anxiety and depression...
November 3, 2016: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/27814313/correlations-between-postural-control-and-psychological-factors-in-vestibular-schwannoma-patients
#13
Laurence Ribeyre, Elisabeth Spitz, Julien Frère, Gerome Gauchard, Cécile Parietti-Winkler
BACKGROUND: Various individual factors have been described to influence postural performances related to vestibular schwannoma. However, psychological factors may also be involved in postural variations. OBJECTIVE: To identify relationships between postural performances, illness perceptions, coping, anxiety-depression and quality of life of patients with vestibular schwannoma. METHODS: Twenty-six patients who were scheduled for a surgical removal of a vestibular schwannoma underwent posturography tests and were asked to complete psychological questionnaires three days prior to surgery...
November 3, 2016: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/27814311/effects-of-acoustic-stimulus-duration-on-cervical-vestibular-evoked-myogenic-potentials-a-neurophysiological-and-modeling-study
#14
A Ciardo, N El Assawy, S Mauro, L Priano
OBJECTIVE: To analyze and model the effects of acoustic stimulus duration on cervical vestibular evoked myogenic potentials (cVEMPs). DESIGN: Subjects with normal hearing and no vestibular or cervical disorders were tested using 1 kHz tone bursts (TBs) of different durations to evoke cVEMPs from the ipsilateral sternocleidomastoid muscle. VEMP modeling was performed in Labview. RESULTS: The increase in TB duration initially resulted in a non-linear increase in cVEMP amplitude, followed by more complex cVEMP modifications that were mainly related to the appearance of a new wave (nX) that interfered with n23...
November 3, 2016: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/27812348/an-attempt-of-early-detection-of-poor-outcome-after-whiplash
#15
Sebastien Laporte, Danping Wang, Jennyfer Lecompte, Sophie Blancho, Baptiste Sandoz, Antoine Feydy, Pavel Lindberg, Julien Adrian, Elodie Chiarovano, Catherine de Waele, Pierre-Paul Vidal
The main concern with whiplash is that a large proportion of whiplash patients experience disabling symptoms or whiplash-associated disorders (WAD) for months if not years following the accident. Therefore, identifying early prognostic factors of WAD development is important as WAD have widespread clinical and economic consequences. In order to tackle that question, our study was specifically aimed at combining several methods of investigation in the same WAD patients at the acute stage and 6 months later...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27804864/immunology-rheumatology-approach-to-sudden-sensorineural-hearing-loss
#16
Mohsen Rajati, Massod Saghafi, Houshang Rafatpanah, Bashir Rasoulian, Shirin Irani, Mohammadsaleh Soltankhah
BACKGROUND: Sensorineural hearing loss (SNHL) and vestibular dysfunction have been described in various autoimmune disorders and systemic vasculitides. A high prevalence of SNHL is reported to occur in established rheumatologic diseases; however, immunologic and rheumatologic disorders make up a small proportion of patients with sudden sensorineural hearing loss (SSNHL). OBJECTIVE: This prospective study was carried out in order to determine the prevalence of rheumatologic and immunologic disorders in patients with SSNHL in Northeast Iran...
October 29, 2016: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/27789624/distinct-capacity-for-differentiation-to-inner-ear-cell-types-by-progenitor-cells-of-the-cochlea-and-vestibular-organs
#17
Will J McLean, Dalton T McLean, Ruth Anne Eatock, Albert S B Edge
Disorders of hearing and balance are most commonly associated with damage to cochlear and vestibular hair cells or neurons. Although these cells are not capable of spontaneous regeneration, progenitor cells in the hearing and balance organs of the neonatal mammalian inner ear have the capacity to generate new hair cells after damage. To investigate whether these cells are restricted in their differentiation capacity, we assessed the phenotypes of differentiated progenitor cells isolated from three compartments of the mouse inner ear - the vestibular and cochlear sensory epithelia and the spiral ganglion - by measuring electrophysiological properties and gene expression...
December 1, 2016: Development
https://www.readbyqxmd.com/read/27777829/non-invasive-neuromodulation-using-time-varying-caloric-vestibular-stimulation
#18
Robert D Black, Lesco L Rogers, Kristen K Ade, Heather A Nicoletto, Heather D Adkins, Daniel T Laskowitz
Caloric vestibular stimulation (CVS) to elicit the vestibulo-ocular reflex has long been used in clinical settings to aid in the diagnosis of balance disorders and to confirm the absence of brainstem function. While a number of studies have hinted at the potential therapeutic applications of CVS, the limitations of existing devices have frustrated that potential. Current CVS irrigators use water or air during short-duration applications; however, this approach is not tenable for longer duration therapeutic protocols or home use...
2016: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/27777567/distribution-of-5-ht1f-receptors-in-monkey-vestibular-and-trigeminal-ganglion-cells
#19
Habiba O Usman, Carey D Balaban
BACKGROUND: Evidence of serotonergic involvement in vestibular pathway contributions to migraine and balance disorders is compelling. Serotonergic 5-HT1B and 5-HT1D receptors are expressed extensively in inner ear ganglia of monkeys and rats. The serotonergic 5-HT1F receptor is also a target of triptans. This study describes its distribution in vestibular and trigeminal ganglia of monkeys. METHODS: Using primary polyclonal antibodies raised against oligopeptides specific for the human 5-HT1F receptor, neuronal somatic area and intensity of immunoreactive vestibular and trigeminal ganglia were quantified...
2016: Frontiers in Neurology
https://www.readbyqxmd.com/read/27777160/growth-dynamics-of-intracranial-tumors-in-patients-with-neurofibromatosis-type-2
#20
Anna C Lawson McLean, Steffen K Rosahl
OBJECT: Neurofibromatosis type 2 is an autosomal-dominant disorder caused by a defective gene locus 22q12. Patients with NF2 are prone to develop multiple intracranial neoplasms, such as vestibular schwannomas, meningiomas and schwannomas of other cranial nerves. To date, little is known about the growth dynamics of these tumors. The aim of our study was to investigate a) the median growth rate per year, b) the growth-free intervals, and c) the growth patterns of these tumors. METHODS: Patient records from the regional neurofibromatosis center were evaluated for their suitability in this analysis...
October 21, 2016: World Neurosurgery
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