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vestibular technology

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https://www.readbyqxmd.com/read/28643050/application-of-transoral-continuous-intraoperative-neuromonitoring-in-natural-orifice-transluminal-endoscopic-surgery-for-thyroid-disease-a-preliminary-study
#1
Han-Kun Chen, Chun-Liang Chen, Kuo-Shan Wen, Yi-Feng Lin, Kai-Yuan Lin, Yih-Huei Uen
BACKGROUND: The novel concept of continuous intraoperative neuromonitoring (Cont-IONM) through stimulation of the vagal nerve has been used in thyroidectomies to prevent imminent injury of the recurrent laryngeal nerve (RLN). This article reports on this technology and the results of using transoral Cont-IONM in natural orifice transluminal endoscopic surgery for thyroid disease. METHODS: Cont-IONM of the RLN was achieved through automatic cyclical stimulation of the vagal nerve using a C2 monitor and delta stimulating electrode...
June 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28633508/rescue-of-peripheral-vestibular-function-in-usher-syndrome-mice-using-a-splice-switching-antisense-oligonucleotide
#2
Sarath Vijayakumar, Frederic F Depreux, Francine M Jodelka, Jennifer J Lentz, Frank Rigo, Timothy A Jones, Michelle L Hastings
Usher syndrome type 1C (USH1C/harmonin) is associated with profound retinal, auditory and vestibular dysfunction. We have previously reported on an antisense oligonucleotide (ASO-29) that dramatically improves auditory function and balance behavior in mice homozygous for the harmonin mutation Ush1c c.216G>A following a single systemic administration. The findings were suggestive of improved vestibular function; however, no direct vestibular assessment was made. Here, we measured vestibular sensory evoked potentials (VsEPs) to directly assess vestibular function in Usher mice...
June 19, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28630149/molecular-mechanism-of-pore-formation-by-aerolysin-like-proteins
#3
REVIEW
Marjetka Podobnik, Matic Kisovec, Gregor Anderluh
Aerolysin-like pore-forming proteins are an important family of proteins able to efficiently damage membranes of target cells by forming transmembrane pores. They are characterized by a unique domain organization and mechanism of action that involves extensive conformational rearrangements. Although structures of soluble forms of many different members of this family are well understood, the structures of pores and their mechanism of assembly have been described only recently. The pores are characterized by well-defined β-barrels, which are devoid of any vestibular regions commonly found in other protein pores...
August 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28625663/development-of-complete-dentures-based-on-digital-intraoral-impressions-case-report
#4
Jing-Huan Fang, Xueyin An, Seung-Mi Jeong, Byung-Ho Choi
PATIENT: A 60-year-old man presented for refabrication of his maxillary complete denture. In this case, a digital process was chosen to replace the ill-fitted complete maxillary denture. A specialized scan retractor was used to retract the mobile tissues of the lips, cheeks and vestibule while taking a digital impression. The interocclusal record obtained in the patient's mouth was scanned in order to digitally register the occlusal vertical dimension. The denture base and teeth were designed on virtual models that were mounted at the occlusal vertical dimension, and were made using CAD/CAM technology...
June 15, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28621418/single-cell-analysis-of-the-inner-ear-sensory-organs
#5
Ofer Yizhar-Barnea, Karen B Avraham
The inner ear is composed of a complex mixture of cells, which together allow organisms to hear and maintain balance. The cells in the inner ear, which undergo an extraordinary process of development, have only recently begun to be studied on an individual level. As it has recently become clear that individual cells, previously considered to be of uniform character, may differ dramatically from each other, the need to study cell-to-cell variation, along with distinct transcriptional and regulatory signatures, has taken hold in the scientific community...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28604576/diagnosing-large-vestibular-aqueduct-radiological-review-of-high-resolution-ct-versus-high-resolution-volumetric-mri
#6
Nicholas L Deep, Matthew L Carlson, Steven M Weindling, David M Barrs, Colin L W Driscoll, Christine M Lohse, John I Lane, Joseph M Hoxworth
OBJECTIVES: To compare the diagnostic yield of high-resolution volumetric T2-weighted MRI (HRT2-MRI) with high-resolution computed tomography (HRCT) for diagnosis of large vestibular aqueduct (LVA). STUDY DESIGN: Three board-certified neuroradiologists performed an independent, blinded radiological review for diagnosing LVA with 2:1 age-matched controls on patients with both HRCT and HRT2-MRI imaging. SETTING: Tertiary referral center. PATIENTS: All patients between 2002 and 2016 with hearing loss who underwent both HRCT and HRT2-MRI and were diagnosed with LVA on either modality...
June 9, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28576516/a-novel-missense-mutation-in-the-slc26a4-gene-causes-nonsyndromic-hearing-loss-and-enlarged-vestibular-aqueduct
#7
Xiaoguang He, Qi Peng, Siping Li, Pengyuan Zhu, Chunqiu Wu, Chunbao Rao, Jiang Chang, Mingyu Xie, Baimao Zhong, Xiaomei Lu
OBJECTIVES: We aimed to investigate the genetic causes of hearing loss in a Chinese proband with nonsyndromic hearing loss and enlarged vestibular aqueduct syndrome. METHODS: We conducted clinical and genetic evaluations in a deaf proband and his normal-hearing parents. Multiplex PCR technology combined with Ion Torrent™ next-generation sequencing technology was used to detect the pathogenic mutations. As a control, a group of 1500 previously studied healthy newborns from the same ethnic background were subjected to deafness gene screening using the same method as in our previous study...
April 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28543062/an-adaptive-vestibular-rehabilitation-technique
#8
Benjamin T Crane, Michael C Schubert
OBJECTIVES/HYPOTHESIS: There is a large variation in vestibular rehabilitation (VR) results depending on type of therapy, adherence, and the appropriateness for the patient's level of function. A novel adaptive vestibular rehabilitation (AVR) program was developed and evaluated. STUDY DESIGN: Technology and procedure development, and prospective multicenter trial. METHODS: Those with complete unilateral vestibular hypofunction and symptomatic at least 3 months with a Dizziness Handicap Inventory (DHI) >30 were eligible...
May 23, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28516967/body-worn-triaxial-accelerometer-coherence-and-reliability-related-to-static-posturography-in-unilateral-vestibular-failure
#9
M Alessandrini, A Micarelli, A Viziano, I Pavone, G Costantini, D Casali, F Paolizzo, G Saggio
Since changes in vestibular function may be one cause of disequilibrium, major advances in measuring postural control and sensory integration in vestibular impairments have been achieved by using posturography. However, in order to overcome problems related to this type of technology, body-worn accelerometers (ACC) have been proposed as a portable, low-cost alternative to posturography for measurements of postural sway in a friendly and ecologic environment. Due to the fact that no study to date has shown the experimental validity of ACC-based measures of body sway with respect to posturography for subjects with vestibular deficits, the aim of the present study was: i) to develop and validate a practical tool that can allow clinicians to measure postural sway derangements in an otoneurological setting by ACC, and ii) to provide reliable, sensitive and accurate automatic analysis of sway that could help in discriminating unilateral vestibular failure (UVF) patients...
June 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28414692/neuronal-fibers-and-neurotransmitter-receptor-expression-in-the-human-endolymphatic-sac
#10
Martin Nue Møller, Svend Kirkeby, Jonas Vikeså, Finn Cilius Nielsen, Per Cayé-Thomasen
INTRODUCTION: Recent studies suggest that the human endolymphatic sac (ES) may have multiple functions, including an ion-transport capacity comparable to the kidney, an immunological capacity and a possible natriuretic capacity. Further, there have been speculations of a yet undefined role in intracranial pressure homeostasis. The anatomical location towards the sigmoid sinus would suggest a possible endo- and/or paracrine signaling. However, neuronal connections may also apply, but it remains very scarcely explored in the human ES...
June 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28387692/the-role-of-sensory-augmentation-for-people-with-vestibular-deficits-real-time-balance-aid-and-or-rehabilitation-device
#11
K H Sienko, S L Whitney, W J Carender, C Wall
This narrative review highlights findings from the sensory augmentation field for people with vestibular deficits and addresses the outstanding questions that are critical to the translation of this technology into clinical and/or personal use. Prior research has demonstrated that the real-time use of visual, vibrotactile, auditory, and multimodal sensory augmentation technologies can improve balance during static and dynamic stance tasks within a laboratory setting. However, its application in improving gait requires additional investigation, as does its efficacy as a rehabilitation device for people with vestibular deficits...
2017: Journal of Vestibular Research: Equilibrium & Orientation
https://www.readbyqxmd.com/read/28360849/embodied-medicine-mens-sana-in-corpore-virtuale-sano
#12
Giuseppe Riva, Silvia Serino, Daniele Di Lernia, Enea Francesco Pavone, Antonios Dakanalis
Progress in medical science and technology drastically improved physicians' ability to interact with patient's physical body. Nevertheless, medicine still addresses the human body from a Hippocratic point of view, considering the organism and its processes just as a matter of mechanics and fluids. However, the interaction between the cognitive neuroscience of bodily self-consciousness (BSC), fundamentally rooted in the integration of multisensory bodily inputs, with virtual reality (VR), haptic technologies and robotics is giving a new meaning to the classic Juvenal's latin dictum "Mens sana in corpore sano" (a healthy mind in a healthy body)...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28295370/the-human-endolymphatic-sac-expresses-natriuretic-peptides
#13
Martin Nue Møller, Svend Kirkeby, Jonas Vikeså, Finn Cilius Nielsen, Per Cayé-Thomasen
OBJECTIVES/HYPOTHESIS: The function of the human endolymphatic sac (ES) has been enigmatic for decades. Hypotheses include controlling endolymphatic fluid homeostasis and inner ear immunological defense. Additionally, several studies indicate a possible endocrine capacity and a yet undefined role in intracranial pressure homeostasis. However, no direct evidence of such capacity exists. This study aims to explore and identify the hypothesized endocrine capacity of the human ES. STUDY DESIGN: DNA microarrays and immunohistochemistry were used for analyses of fresh human ES tissue samples...
June 2017: Laryngoscope
https://www.readbyqxmd.com/read/28275283/a-c-shaped-canal-in-a-maxillary-second-molar-prexion-3d-cone-beam-computed-tomography-analysis
#14
Daniela Siqueira Lopes, Andréa Cruz Câmara, Carlos Menezes Aguiar, Monikelly do Carmo Chagas do Nascimento, Luciane Farias de Araújo
OBJECTIVE: The aim of this study was to present an atypical case of a C-shaped root canal that was present in the vestibular root of a permanent maxillary second molar using PreXion 3-D cone-beam computed tomography (CBCT) as a diagnostic device. MATERIALS AND METHODS: A 50-year-old female patient was referred for routine examination to a private diagnostic imaging clinic in Recife-Pernambuco. During the physical examination, the presence of an unusual C-shaped anatomy in the vestibular canal with a mesiodistal interconnection that extended from the apical to the cervical third was detected in axial slices acquired with a PreXion 3-D scanner...
December 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28188418/interobserver-variability-of-the-house-brackmann-facial-nerve-grading-system-for-the-analysis-of-a-randomized-multi-center-phase-iii-trial
#15
Christian Scheller, Andreas Wienke, Marcos Tatagiba, Alireza Gharabaghi, Kristofer F Ramina, Konstanze Scheller, Julian Prell, Johannes Zenk, Oliver Ganslandt, Barbara Bischoff, Cordula Matthies, Thomas Westermaier, Gregor Antoniadis, Maria Teresa Pedro, Veit Rohde, Kajetan von Eckardstein, Thomas Kretschmer, Malte Kornhuber, Fred G Barker, Christian Strauss
BACKGROUND: Evidence of a high interobserver variability of the subjective House-Brackmann facial nerve grading system (HBGS) would justify cost- and time-consuming technological enhancements of objective classifications for facial nerve paresis. METHOD: A total of 112 patients were recruited for a randomized multi-center trial to investigate the efficacy of prophylactic nimodipine treatment in vestibular schwannoma (VS) surgery. For the present investigation both treatment groups were pooled for the assessment of facial nerve function preoperatively, in the early postoperative course and 1 year after the surgery...
February 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28079677/cadaveric-testing-of-robot-assisted-access-to-the-internal-auditory-canal-for-vestibular-schwannoma-removal
#16
Neal P Dillon, Ramya Balachandran, Michael A Siebold, Robert J Webster, George B Wanna, Robert F Labadie
HYPOTHESIS: An image-guided robotic system can safely perform the bulk removal of bone during the translabyrinthine approach to vestibular schwannoma (VS). BACKGROUND: The translabyrinthine approach to VS removal involves extensive manual milling in the temporal bone to gain access to the internal auditory canal (IAC) for tumor resection. This bone removal is time consuming and challenging due to the presence of vital anatomy (e.g., facial nerve) embedded within the temporal bone...
March 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/27997596/a-new-genetic-diagnostic-for-enlarged-vestibular-aqueduct-based-on-next-generation-sequencing
#17
Yalan Liu, Lili Wang, Yong Feng, Chufeng He, Deyuan Liu, Xinzhang Cai, Lu Jiang, Hongsheng Chen, Chang Liu, Hong Wu, Lingyun Mei
Enlarged vestibular aqueduct (EVA) is one of the most common congenital inner ear malformations and accounts for 1-12% of sensorineural deafness in children and adolescents. Multiple genetic defects contribute to EVA; therefore, early molecular diagnosis is critical for EVA patients to ensure that the most effective treatment strategies are employed. This study explored a new genetic diagnosis method for EVA and applied it to clinic diagnoses of EVA patients. Using next-generation sequencing technology, we set up a multiple polymerase chain reaction enrichment system for target regions of EVA pathogenic genes (SLC26A4, FOXI1, and KCNJ10)...
2016: PloS One
https://www.readbyqxmd.com/read/27780583/development-of-an-evidence-based-decision-pathway-for-vestibular-schwannoma-treatment-options
#18
Faina Linkov, Benita Valappil, Jacob McAfee, Sharon L Goughnour, Douglas M Hildrew, Andrew A McCall, Igor Linkov, Barry Hirsch, Carl Snyderman
OBJECTIVE: To integrate multiple sources of clinical information with patient feedback to build evidence-based decision support model to facilitate treatment selection for patients suffering from vestibular schwannomas (VS). METHODS: This was a mixed methods study utilizing focus group and survey methodology to solicit feedback on factors important for making treatment decisions among patients. Two 90-minute focus groups were conducted by an experienced facilitator...
January 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27742964/-vestibular-schwannoma-management-and-microsurgical-results
#19
S Rosahl, D Eßer
BACKGROUND: The experience of the medical team, interdisciplinarity, quality of the physician-patient relationship, sensible use of modern technology, and a sound knowledge about the long-term results of observation and interventions all influence treatment quality in patients with vestibular schwannomas. OBJECTIVES: Compilation of findings regarding the results of observation and microsurgical treatment of patients with these tumors. Deduction of strategies for the medical management from these data...
October 14, 2016: HNO
https://www.readbyqxmd.com/read/27718642/assessing-subacute-mild-traumatic-brain-injury-with-a-portable-virtual-reality-balance-device
#20
W Geoffrey Wright, Jane McDevitt, Ryan Tierney, F Jay Haran, Kwadwo Osei Appiah-Kubi, Alex Dumont
PURPOSE: Balance impairment is a common sensorimotor symptom in mild traumatic brain injury (mTBI). We designed an affordable, portable virtual reality (VR)-based balance screening device (Virtual Environment TBI Screen [VETS]), which will be validated relative to the Neurocom Sensory Organization Test (SOT) to determine if it can replace commonly used postural assessments. METHODS: This preliminary study examines healthy adults (n = 56) and adults with mTBI (n = 11)...
October 10, 2016: Disability and Rehabilitation
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