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https://www.readbyqxmd.com/read/29771078/-analysis-of-the-difference-between-the-results-of-caloric-tests-and-video-head-pulse-tests-in-patients-with-vestibular-migraine-and-vestibular-neuritis
#1
W Wang, Y C Yang, J H Zhuang, F Li, B Gao
Objective: To compare the results of caloric tests and video head impulse tests (VHIT) in patients with vestibular migraine (VM) and vestibular neuritis (VN), so as to provide help for the differential diagnosis of the two patients. Method: Retrospectively analyze VM and VN patients within 2 weeks of onset from August 1, 2016 to December 31, 2017 in neurology clinic of the Changzheng Hospital of Second Military Medical University, all patients were examined by caloric tests and VHIT, and the results of the two groups were compared and analyzed...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771041/-analysis-of-118-cases-of-benign-paroxysmal-positional-vertigo-after-trauma
#2
H L Xue, C X Li, L X Duan, Y L Jing
Objective: The aim of this study is to retrospective analysis the clinic features of 118 cases of benign paroxysmal positional vertigo after trauma. Method: Analyzes clinic features of injury in 118 cases of benign paroxysmal positional vertigo after trauma, and classified and localized the craniocerebral trauma. The 118 cases were tested with different positioning tests in the sequence of Dix hallpike test and rolling test. Then, proper otolith manual reduction was given. Result: In 118 cases of BPPV after trauma including 35 cases of skull fracture, 6 cases of concussion, 17 cases of scalp hematoma, 28 cases of scalp laceration, 14 cases of mild brain contusion and 18 cases of head combined injury...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29769265/reciprocal-negative-regulation-between-lmx1a-and-lmo4-is-required-for-inner-ear-formation
#3
Yanhan Huang, Jennifer Hill, Andrew Yatteau, Loksum Wong, Tao Jiang, Jelena Petrovic, Lin Gan, Lijin Dong, Doris K Wu
LIM-domain containing transcription factors (LIM-TFs) are conserved factors important for embryogenesis. The specificity of these factors in transcriptional regulation is conferred by the complexes they form with other proteins such as LIM-domain-binding (Ldb) proteins and LIM-domain only (LMO) proteins. Unlike LIM-TF, these proteins do not bind DNA directly. LMO are negative regulators of LIM-TF and they function by competing with LIM-TFs for binding to Ldbs. Although the LIM-TF Lmx1a is expressed in the developing mouse hindbrain, which provides many of the extrinsic signals for inner ear formation, conditional knockout embryos of both sexes show that the inner ear source of Lmx1a is the major contributor of ear patterning...
May 16, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29764776/vestibulo-cochlear-function-after-cochlear-implantation-in-patients-with-meniere-s-disease
#4
Raquel Manrique-Huarte, Diego Calavia, Laura Alvarez-Gomez, Alicia Huarte, Nicolás Perez-Fernández, Manuel Manrique
OBJECTIVES: To measure the auditory (pure tone audiometry and word recognition scores) and vestibular (video head impulse test and vestibular myogenic potentials) outcomes in patients diagnosed with Meniere's disease (MD) who underwent cochlear implantation. MATERIAL AND METHODS: This prospective study included 23 cochlear implant users with MD and 29 patients diagnosed with far-advanced otosclerosis (the control group). RESULTS: The preoperative mean pure tone average thresholds were 99 and 122...
April 2018: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/29762197/high-frequency-horizontal-semicircular-canal-function-in-certain-meni%C3%A3-re-s-disease
#5
Claudia Jerin, Rebecca Maxwell, Robert Gürkov
OBJECTIVES: To characterize video head impulse testing (vHIT) in definitive Menière's disease and to investigate the relationship between vHIT results and other audiovestibular function tests. DESIGN: Fifty-four patients with certain Menière's disease, that is, patients with clinically definite Menière's disease and endolymphatic hydrops visualized by locally enhanced inner ear MR imaging, were recruited for this study. All patients underwent vHIT. The vestibular-ocular reflex gain at 60 ms and refixation saccades were the outcome parameters measured...
May 14, 2018: Ear and Hearing
https://www.readbyqxmd.com/read/29757558/-clinical-features-of-the-recurrence-of-idiopathic-benign-paroxysmal-positional-vertigo
#6
Yong Sheng Tian, Shu Zhen Wang, Ying Liu, Dan Wang, Liang Rong Guo
Objective: To investigate the clinical features of the recurrence of idiopathic benign paroxysmal positional vertigo(IBPPV)patients. Method: Patients with IBPPV were enrolled and were followed-up for 36 months after being well controlled.The data of the patients including age,gender,and co-morbidities(hypertension,diabetes,hyperlipidemia)were analyzed.Characteristics of the patients with recurrent BPPV were compared with those without recurrence. Result: Two hundred and one patients were enrolled and twenty-two(10...
January 20, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29757550/-assessment-of-the-horizontal-semicircular-canal-function-after-cochlear-implantation-by-video-head-impulse-test-and-caloric-test
#7
Jie Zeng, Hong Ming Huang, Xiao Qian Wang, Kai Bang Zhong, Pei Na Wu
Objective: To analyze the functional change of horizontal semicircular canals after cochlear implantation. Method: Eighteen patients were enrolled in this study.Their vestibular function was evaluated by using the caloric test and video head impulse test before and one week,one month after CI surgery,respectively.The unilateral weakness(UW),slow phase velocity(SPV)in caloric test and gain in video head impulse test(vHIT-G)were observed.Caloric test was abnormal when UW>25% or SPV mean<6°/s,while vHIT was abnormal when vHIT-G<0...
January 20, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29754138/lateral-semicircular-canal-osteoma-presenting-as-chronic-postaural-fistula
#8
Charn Gill, Jameel Muzaffar, Raghu Sampath Kumar, Richard Irving
Temporal bone osteoma is an unusual pathology which can occur by birth or can be acquired and mostly involves the tympanomastoid segment of the temporal bone. Osteomas arising from the otic capsule are extremely rare, and there has been only one other report of a lateral semicircular canal osteoma in the literature. We report a similar case of an acquired lateral canal osteoma which presented as a chronic postaural fistula in an ear previously operated for paediatric cholesteatoma.
May 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29750273/video-head-impulse-test-to-preoperatively-identify-the-nerve-of-origin-of-vestibular-schwannomas
#9
Felipe Constanzo, Patricia Sens, Bernardo Corrêa de Almeida Teixeira, Ricardo Ramina
BACKGROUND: Identification of the nerve of origin in vestibular schwannoma (VS) is an important prognostic factor for hearing preservation surgery. Thus far, vestibular functional tests and magnetic resonance imaging have not yielded reliable results to preoperatively evaluate this information. The development of the video head impulse test (vHIT) has allowed a precise evaluation of each semicircular canal, and its localizing value has been tested for some peripheral vestibular diseases, but not for VS...
May 10, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29741293/minimally-invasive-surgery-for-superior-semicircular-canal-dehiscence-results-of-a-four-fenestration-technique-in-twenty-one-adults
#10
Raquel Nogueira, Benjamin Verillaud, Charlotte Hautefort, Domitille Fiaux-Camous, Romain Kania, Philippe Herman
Superior canal semicircular dehiscence (SCCD) may cause vestibular and audiological symptoms that are sometimes debilitating. Computed tomography (CT) and the vestibular evoked myogenic potential (VEMP) test are essential for the diagnosis of SCCD. Various surgical techniques have been developed to manage SCCD but have many associated complications. Our technique uses an approach that otologists and surgeons are highly familiar with and that has other advantages, such as minimizing surgical trauma and preventing recurrences...
May 9, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29740388/central-lesions-with-selective-semicircular-canal-involvement-mimicking-bilateral-vestibulopathy
#11
REVIEW
Luke Chen, G Michael Halmagyi
Bilateral vestibulopathy (BVP), which is due to peripheral lesions, may selectively involve certain semicircular canal (SCC). Recent eye movement recordings with search coil and video head impulse test (HIT) have provided insight in central lesions that can cause bilateral and selective SCC deficit mimicking BVP. Since neurological signs or ocular motor deficits maybe subtle or absent, it is critical to recognize central lesions correctly since there is prognostic and treatment implication. Acute floccular lesions cause bilateral horizontal SCC (HC) impairment while leaving vertical SCC function unaffected...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29708491/video-head-impulse-testing-in-a-pediatric-population-normative-findings
#12
Katheryn Bachmann, Kaitlin Sipos, Violette Lavender, Lisa L Hunter
BACKGROUND: The video head impulse test (vHIT) is a new tool being used in vestibular clinics to assess the function of all six semicircular canals (SCCs) by measuring the gain of the vestibulo-ocular reflex (VOR) in response to rapid head turns. Whereas vHIT has been validated in adults for all SCCs, there are few studies describing the normal response in children, particularly for stimulation of the vertical canals. PURPOSE: The purpose of this study was to characterize the normal vHIT response for all six SCCs in children aged 4-12 years...
May 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/29700594/spatial-orientation-of-the-adult-cochlea-rotation-tilt-and-angle-theta-3
#13
Anita Satish Deshpande, Bruno Passebon Soares, Norman Wendell Todd
OBJECTIVE: Quantitative description in adult crania of (1) angular orientation of the basal turn of the cochlea relative to the sagittal (termed "rotation") and Frankfort horizontal (termed "tilt") planes, and angle theta 3 [angular relationship of the line defined by the cochlea's spiral center and cochlear (round) window, to the cochlear window]; (2) orientation of the cochlea relative to the plane defined by the horizontal and vertical portions of the facial nerve; (3) orientation of the basal turn of the cochlea relative to the plane of the posterior semicircular canal; and (4) the association of these orientations with the extent of mastoid pneumatization...
April 26, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29697584/clinical-implications-of-the-association-between-temporal-bone-tegmen-defects-and-superior-semicircular-canal-dehiscence
#14
Ophir Handzel, Adi Brenner-Ullman, Oren Cavel, Yahav Oron, Oshri Wasserzug, Dan M Fliss, Omer J Ungar
OBJECTIVE: To discuss the clinical implications of the association between temporal bone tegmen dehiscence (TD) necessitating surgical correction and the adjacent dehiscent superior semicircular canal (SSCD). STUDY DESIGN: Retrospective. SETTING: Tertiary referral center. PATIENTS: Sixteen patients with idiopathic TD, with or without SSCD, requiring surgical correction. INTERVENTIONS: Corrective surgery for TD...
April 24, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29692756/hierarchical-cluster-analysis-of-semicircular-canal-and-otolith-deficits-in-bilateral-vestibulopathy
#15
Alexander A Tarnutzer, Christopher J Bockisch, Elena Buffone, Konrad P Weber
Background: Gait imbalance and oscillopsia are frequent complaints of bilateral vestibular loss (BLV). Video-head-impulse testing (vHIT) of all six semicircular canals (SCCs) has demonstrated varying involvement of the different canals. Sparing of anterior-canal function has been linked to aminoglycoside-related vestibulopathy and Menière's disease. We hypothesized that utricular and saccular impairment [assessed by vestibular-evoked myogenic potentials (VEMPs)] may be disease-specific also, possibly facilitating the differential diagnosis...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29687182/prevalence-and-management-of-post-bppv-residual-symptoms
#16
Cristina Vaduva, Jonathan Estéban-Sánchez, Ricardo Sanz-Fernández, Eduardo Martín-Sanz
OBJECTIVES: To evaluate the prevalence and management of residual symptoms in recovered BPPV patients. METHODS: We performed a retrospective study on BPPV patients of any of the three semicircular canals. Exclusion criteria were multiple-canal BPPV, refractory BPPV, central nervous system pathologies or other vestibular diseases. Patients were treated with repositioning maneuvers until the vertigo disappeared and evaluated for symptoms of instability at 1 month after resolution...
April 23, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29685082/peripheral-vestibular-disorders-in-children-and-adolescents-with-concussion
#17
Jacob R Brodsky, Talia N Shoshany, Sophie Lipson, Guangwei Zhou
Objective To review peripheral vestibular disorders in pediatric patients with dizziness following concussion. Study Design Case series with chart review. Setting Pediatric vestibular clinic and pediatric multidisciplinary concussion clinic at a tertiary level pediatric hospital. Subjects and Methods We retrospectively reviewed 109 patients seen for dizziness following a concussion between September 2012 and July 2015. Patients were ≤20 years of age at the time of concussion. Incidences of specific peripheral vestibular disorders were assessed along with timing of diagnosis relative to the date of injury, diagnostic test findings, and treatment interventions associated with those diagnoses...
April 1, 2018: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/29661661/three-dimensional-study-of-31-cases-of-synostotic-anterior-plagiocephaly-before-and-after-surgical-management-the-lille-protocol
#18
Ambre Simon, Emmanuelle Bocquet, Philippe Pellerin, Matthieu Vinchon, Patrick Dhellemmes, Véronique Martinot, Alexis Wolber, Clotilde Calibre, Philippe Charlier, Pierre Guerreschi
Synostotic anterior plagiocephaly is a rare pathological cranial malformation. Therapeutic options are rarely studied due to the rarity of the malformation and difficulties in diagnosis and care management. The objective of this study was to analyze the results obtained with the Lille protocol based on 62 CT-scans done before and after surgery in 31 patients. A specific analysis was designed for this work. Nine cephalometric measures enabled to evidence on each CT-Scan the corrections made on the fronto-orbital bandeau and the potential impact of surgery on the craniofacial structures...
March 28, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29649046/range-of-peak-head-velocity-in-video-head-impulse-testing-for-pediatric-patients
#19
Guangwei Zhou, Cassandra Goutos, Sophie Lipson, Jacob Brodsky
OBJECTIVE: To examine peak head velocity in video head impulse testing of pediatric patients and its effect on vestibulo-ocular reflex (VOR) gain. STUDY DESIGN: Retrospective case review. SETTING: Tertiary referral center. PATIENTS: Pediatric patients ages 3 to 18 years old who underwent video head impulse testing during clinical evaluation of dizziness and/or imbalance. INTERVENTION(S): Conducted video head impulse test (vHIT) in horizontal, left anterior-right posterior (LARP), and right anterior-left posterior (RALP) planes...
April 11, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29649043/permeation-enhancers-for-intratympanically-applied-drugs-studied-using-fluorescent-dexamethasone-as-a-marker
#20
Wei Li, Jared J Hartsock, Chunfu Dai, Alec N Salt
HYPOTHESIS: Entry of locally applied drugs into the inner ear can be enhanced by chemical manipulations. BACKGROUND: Perilymph drug concentrations achieved by intratympanic applications are well below the applied concentration due to limited entry through the round window (RW) membrane and stapes. Chemical manipulations to increase entry permeability could increase the effectiveness of drug therapy with local applications. METHODS: Dexamethasone-fluorescein (F-dex) was used as an entry marker...
April 11, 2018: Otology & Neurotology
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