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Vestibular testing

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https://www.readbyqxmd.com/read/29242950/superior-canal-dehiscence-syndrome-diagnosis-with-vestibular-evoked-myogenic-potentials-and-fremitus-nystagmus
#1
R Gürkov, C Jerin, W Flatz, R Maxwell
BACKGROUND: Superior canal dehiscence syndrome (SCDS) is a relatively rare neurotological disorder that is characterized by a heterogeneous clinical picture. Recently, vestibular evoked myogenic potential (VEMP) measurement was established for the diagnosis of SCDS. In the present study, a case series of patients with SCDS were analyzed, with a focus on VEMP. METHODS: Four patients with SCDS were prospectively examined with ocular VEMP (oVEMP) and cervical VEMP (cVEMP)...
December 14, 2017: HNO
https://www.readbyqxmd.com/read/29241100/the-effect-of-spatial-auditory-landmarks-on-ambulation
#2
Adham M Karim, Kavelin Rumalla, Laurie A King, Timothy E Hullar
The maintenance of balance and posture is a result of the collaborative efforts of vestibular, proprioceptive, and visual sensory inputs, but a fourth neural input, audition, may also improve balance. Here, we tested the hypothesis that auditory inputs function as environmental spatial landmarks whose effectiveness depends on sound localization ability during ambulation. Eight blindfolded normal young subjects performed the Fukuda-Unterberger test in three auditory conditions: silence, white noise played through headphones (head-referenced condition), and white noise played through a loudspeaker placed directly in front at 135 centimeters away from the ear at ear height (earth-referenced condition)...
December 5, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29239806/development-of-postural-control-and-maturation-of-sensory-systems-in-children-of-different-ages-a-cross-sectional-study
#3
Cristina Dos Santos Cardoso de Sá, Catarina Costa Boffino, Renato Teodoro Ramos, Clarice Tanaka
OBJECTIVE: To evaluate the stability, postural adjustments and contributions of sensory information for postural control in children. METHODS: 40 boys and 40 girls were equally divided into groups of 5, 7, 9 and 12 years (G5, G7, G9 and G12). All children were submitted to dynamic posturography using a modified sensory organization test, using four sensory conditions: combining stable or sway referencing platform with eyes opened, or closed. The area and displacements of the center of pressure were used to determine stability, while the adjustments were used to measure the speed of the center of pressure displacements...
November 8, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/29238692/migraine-related-vertigo
#4
Vithal D Udagatti, Rajendran Dinesh Kumar
Migraine related vertigo (MRV) is largely accepted in the vestibular community and probably represents the second most common cause of vertigo after benign positional vertigo by far exceeding Meniere's disease. The data on vestibular migraine management is still relatively poor, despite its enormous importance in daily practice. A 55-year old male presented with history of giddiness, imbalance, sweating and sensation of nausea with severe pulsating headache of one day duration. Ear, Nose and Throat examination was normal...
December 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29238682/cochlear-implantation-in-children-with-anomalous-cochleovestibular-anatomy-our-experience
#5
Mohnish Grover, Shitanshu Sharma, Shruti Bhargava, Shashank Nath Singh, Gaurav Gupta, Man Prakash Sharma
To report operative findings, postoperative course, and postimplantation performance in patients with cochlear malformations who underwent cochlear implantation. Seventeen patients with malformations which included enlarged vestibular aqueduct (n = 6), Mondini's dysplasia (n = 5) common cavity deformity (n = 3) and incomplete partition type 2 (n = 3) underwent cochlear implantation with Nucleus 22 straight array device at our center. Operative findings described facial nerve anatomy and cerebrospinal fluid leak...
December 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29238501/the-effect-of-perineal-massage-during-the-second-stage-of-birth-on-nulliparous-women-perineal-a-randomization-clinical-trial
#6
Roonak Shahoei, Farzaneh Zaheri, Lila Hashemi Nasab, Fariba Ranaei
Background: Childbirth and puerperium are of the most important periods in women's lives and can affect different aspects of their lives. Objective: To determine the effect of perineal massage in the second stage of labor on perineal lacerations, episiotomy, and perineal pain in nulliparous women. Methods: This randomization clinical trial was conducted at Be'sat Hospital in Sanandaj, Iran, from 2013 to 2014. A total of 195 nulliparous women were included in the study...
October 2017: Electronic Physician
https://www.readbyqxmd.com/read/29236919/evidence-of-progenitor-cells-in-the-adult-human-cochlea-sphere-formation-and-identification-of-abcg2
#7
Milene Massucci-Bissoli, Karina Lezirovitz, Jeanne Oiticica, Ricardo Ferreira Bento
OBJECTIVES: The aim of this study was to search for evidence of stem or progenitor cells in the adult human cochlea by testing for sphere formation capacity and the presence of the stem cell marker ABCG2. METHODS: Cochleas removed from patients undergoing vestibular schwannoma resection (n=2) and from brain-dead organ donors (n=4) were dissociated for either flow cytometry analysis for the stem cell marker ABCG2 or a sphere formation assay that is widely used to test the sphere-forming capacity of cells from mouse inner ear tissue...
November 2017: Clinics
https://www.readbyqxmd.com/read/29235557/timing-duration-and-severity-of-iron-deficiency-in-early-development-and-motor-outcomes-at-9-months
#8
Denise C C Santos, Rosa M Angulo-Barroso, Ming Li, Yang Bian, Julie Sturza, Blair Richards, Betsy Lozoff
BACKGROUND/OBJECTIVES: Poorer motor development is reported in infants with iron deficiency (ID). The role of timing, duration and severity is unclear. We assessed relations between ID timing, duration, and severity and gross motor scores, neurological integrity, and motor behavior quality at 9 months. SUBJECTS/METHODS: Iron status was determined at birth and 9 months in otherwise healthy term Chinese infants. The 9-month motor evaluation included the Peabody Developmental Motor Scale (PDMS-2), Infant Neurological International Battery (INFANIB), and motor quality factor...
November 6, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29234822/-acute-vestibular-syndrome-clinical-examination-outperforms-mri-in-the-detection-of-central-lesions
#9
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/29234301/balance-screening-of-vestibular-function-in-subjects-aged-4-years-and-older-a-living-laboratory-experience
#10
María Carolina Bermúdez Rey, Torin K Clark, Daniel M Merfeld
To better understand the various individual factors that contribute to balance and the relation to fall risk, we performed the modified Romberg Test of Standing Balance on Firm and Compliant Support, with 1,174 participants between 4 and 83 years of age. This research was conducted in the Living Laboratory® at the Museum of Science, Boston. We specifically focus on balance test condition 4, in which individuals stand on memory foam with eyes closed, and must rely on their vestibular system; therefore, performance in this balance test condition provides a proxy for vestibular function...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29227983/bone-conducted-vestibular-evoked-myogenic-potentials-before-and-after-stapes-surgery
#11
Kazuyuki Akazawa, Shigeto Ohta, Kenzo Tsuzuki, Masafumi Sakagami
OBJECTIVE: To identify whether stapes surgery causes otolith dysfunction using bone-conducted vestibular-evoked myogenic potentials (VEMPs). STUDY DESIGN: Prospective study. SETTING: Hyogo College of Medicine Hospital. PATIENTS: Twenty primary ears (19 otosclerosis, 1 congenital stapes fixation) in 17 patients (2 men, 15 women; mean age 51 yr, range 20-68 yr) who had normal cervical VEMP (cVEMP) and ocular VEMP (oVEMP) results with bone-conducted stimulation were included...
January 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29226324/tandem-walking-as-a-quick-screening-test-for-vestibular-disorders
#12
Helen S Cohen, Jasmine Stitz, Haleh Sangi-Haghpeykar, Susan P Williams, Ajitkumar P Mulavara, Brian T Peters, Jacob J Bloomberg
OBJECTIVES/HYPOTHESIS: Although many screening tests of balance are available, few of them have been well validated for clinical or research uses. The goal of this study was to test an updated version of an old test, Tandem Walking, to determine how useful it is for screening patients with vestibular disorders. STUDY DESIGN: Case-control study. METHODS: Subjects were 90 adult patients with vestibular disorders and 292 healthy adult controls...
December 11, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29224758/pediatric-tinnitus-incidence-of-imaging-anomalies-and-the-impact-of-hearing-loss
#13
Rhorie Kerr, Elise Kang, Brandon Hopkins, Samantha Anne
OBJECTIVE: Guidelines exist for evaluation and management of tinnitus in adults; however lack of evidence in children limits applicability of these guidelines to pediatric patients. Objective of this study is to determine the incidence of inner ear anomalies detected on imaging studies within the pediatric population with tinnitus and evaluate if presence of hearing loss increases the rate of detection of anomalies in comparison to normal hearing patients. METHODS: Retrospective review of all children with diagnosis of tinnitus from 2010 to 2015 ;at a tertiary care academic center...
December 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29224712/superior-semicircular-canal-dehiscence-diagnosis-and-management
#14
REVIEW
Christine Mau, Naveed Kamal, Saiaditya Badeti, Renuka Reddy, Yu-Lan Mary Ying, Robert W Jyung, James K Liu
The authors provide an update on the clinical manifestations, diagnosis and various approaches to the treatment of superior semicircular canal dehiscence (SSCD). SSCD is a rare condition where the bone overlying the superior semicircular canal thins or dehisces causing characteristic clinical findings. Since this was first reported in 1998 by Minor and colleagues, there has been much advancement made in terms of diagnosis and treatment. Signs and symptoms include a wide variation of both vestibular and auditory manifestations...
December 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29210952/survey-of-the-american-neurotology-society-on-cochlear-implantation-part-1-candidacy-assessment-and-expanding-indications
#15
Matthew L Carlson, Douglas P Sladen, Richard K Gurgel, Nicole M Tombers, Christine M Lohse, Colin L Driscoll
OBJECTIVE: To examine practice variance of cochlear implant candidacy assessment and off-label indications across centers in the United States. METHODS: Cross-sectional survey of the American Neurotology Society (ANS). RESULTS: A total of 81 surveys were returned from ANS members who report regular involvement in cochlear implant care. Overall there was a broad distribution in age and clinical experience, with most respondents reporting ACGME accreditation in neurotology and employment at an academic center...
November 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29208731/misleading-signs-in-acute-vertigo
#16
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)...
December 5, 2017: Practical Neurology
https://www.readbyqxmd.com/read/29208729/persistent-postural-perceptual-dizziness-pppd-a-common-characteristic-and-treatable-cause-of-chronic-dizziness
#17
REVIEW
Stoyan Popkirov, Jeffrey P Staab, Jon Stone
Persistent postural-perceptual dizziness (PPPD) is a newly defined diagnostic syndrome that unifies key features of chronic subjective dizziness, phobic postural vertigo and related disorders. It describes a common chronic dysfunction of the vestibular system and brain that produces persistent dizziness, non-spinning vertigo and/or unsteadiness. The disorder constitutes a long-term maladaptation to a neuro-otological, medical or psychological event that triggered vestibular symptoms, and is usefully considered within the spectrum of other functional neurological disorders...
December 5, 2017: Practical Neurology
https://www.readbyqxmd.com/read/29207275/clinical-features-of-otolith-organ-specific-vestibular-dysfunction
#18
Chisato Fujimoto, Sayaka Suzuki, Makoto Kinoshita, Naoya Egami, Keiko Sugasawa, Shinichi Iwasaki
OBJECTIVE: To elucidate the clinical features and vestibular symptoms of patients with otolith organ dysfunction in the presence of normal function of the semicircular canals. METHODS: We reviewed the clinical records of 277 consecutive new patients with balance disorders who underwent testing of cervical and ocular vestibular evoked myogenic potentials (cVEMPs and oVEMPs) as well as caloric testing and video head impulse testing (vHIT). RESULTS: We identified 76 patients who showed normal caloric responses and normal vHIT findings in each SCC plane, but abnormal responses in cVEMP and/or oVEMP testing...
November 21, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29202612/cone-beam-computed-tomography-imaging-of-superior-semicircular-canal-morphology-a-retrospective-comparison-of-cleft-lip-palate-patients-and-normal-controls
#19
Oğuzhan Altun, Suayip Burak Duman, Ibrahim Sevki Bayrakdar, Yasin Yasa, Sacide Duman, Sevcihan Günen Yılmaz
OBJECTIVE: This study evaluated the prevalence and morphological characteristics of the superior semicircular canal (SSCC) in cleft lip and palate (CL/P) patients using cone beam computed tomography (CBCT). MATERIALS AND METHODS: CBCT images of 53 CL/P patients (28 males and 25 females) and a control group of 76 patients (42 males and 34 females) were evaluated. Retrospectively, 258 temporal bone images from 129 patients were evaluated in terms of SSCC morphology and divided into a normal pattern (0...
December 4, 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/29197811/physical-examination-of-dizziness-in-athletes-after-a-concussion-a-descriptive-study
#20
Jennifer C Reneker, Vinay K Cheruvu, Jingzhen Yang, Mark A James, Chad E Cook
BACKGROUND: Dizziness is commonly reported after concussion. With the forces experienced at the time of the injury, several anatomical locations may have been altered, causing dizziness. OBJECTIVE: Describe an objective examination and the types of impairment/dysfunction implicated by the results of clinical examination tests in subjects with dizziness after a concussion. DESIGN: Cross-Sectional. METHODS: Athletes between ages 10-23 were enrolled with a diagnosis of concussion...
November 26, 2017: Musculoskeletal Science & Practice
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