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https://www.readbyqxmd.com/read/29676315/vitreoretinal-surgery-on-the-fellow-eye-a-retrospective-analysis-of-18-years-of-surgical-data-from-a-tertiary-center-in-england
#1
Mark A P Fajgenbaum, Roger S Wong, David A H Laidlaw, Tom H Williamson
Purpose: To determine the long-term incidence of fellow-eye surgical involvement in patients who have undergone first-eye vitreoretinal (VR) surgery for a variety of indications. This was a single-institution retrospective, consecutive series. Methods: Eighteen years of electronic surgical data were reviewed at our institution. All patients having surgery for the following indications were included: rhegmatogenous retinal detachment (RRD), macular hole (MH), epiretinal membrane (ERM), proliferative diabetic retinopathy (PDR), vitritis, and dropped nucleus...
May 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29675690/a-new-algorithm-to-build-bridges-between-two-patient-reported-health-outcome-instruments-the-mos-sf-36%C3%A2-and-the-vr-12-health-survey
#2
Alfredo Selim, William Rogers, Shirley Qian, James A Rothendler, Erin E Kent, Lewis E Kazis
PURPOSE: To develop bridging algorithms to score the Veterans Rand-12 (VR-12) scales for comparability to those of the SF-36® for facilitating multi-cohort studies using data from the National Cancer Institute Surveillance, Epidemiology, and End Results Program (SEER) linked to Medicare Health Outcomes Survey (MHOS), and to provide a model for minimizing non-statistical error in pooled analyses stemming from changes to survey instruments over time. METHODS: Observational study of MHOS cohorts 1-12 (1998-2011)...
April 19, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29675142/reviewing-clinical-effectiveness-of-active-training-strategies-of-platform-based-ankle-rehabilitation-robots
#3
REVIEW
Xiangfeng Zeng, Guoli Zhu, Mingming Zhang, Sheng Q Xie
Objective: This review aims to provide a systematical investigation of clinical effectiveness of active training strategies applied in platform-based ankle robots. Method: English-language studies published from Jan 1980 to Aug 2017 were searched from four databases using key words of "Ankle∗ " AND "Robot∗ " AND "Effect∗ OR Improv∗ OR Increas∗ ." Following an initial screening, three rounds of discrimination were successively conducted based on the title, the abstract, and the full paper...
2018: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29672259/simulation-of-underwater-excavation-using-dredging-procedures
#4
Pavel Kouril, Fotis Liarokapis
Underwater excavation is still a very difficult and demanding task. One of the main problems is how to train inexperienced archaeologists. One of archaeologys most challenging tasks is known as dredging. This article presents a novel system for simulating underwater excavation techniques using immersive VR. The focus is not on simulating swimming but on excavating underwater while following established archaeological methods and techniques. In particular, the use of dredging procedures was implemented by a realistic simulation of sand in real-time performance...
March 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29672256/an-analysis-of-vr-technology-used-in-immersive-simulations-with-a-serious-game-perspective
#5
Aline Menin, Rafael Torchelsen, Luciana Nedel
Using virtual environments (VEs) is a safer and cost-effective alternative to executing dangerous tasks, such as training firefighters and industrial operators. Immersive virtual reality (VR) combined with game aspects have the potential to improve the user experience in the VE by increasing realism, engagement, and motivation. This article investigates the impact of VR technology on 46 immersive gamified simulations with serious purposes and classifies it towards a taxonomy. Our findings suggest that immersive VR improves simulation outcomes, such as increasing learning gain and knowledge retention and improving clinical outcomes for rehabilitation...
March 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29672254/sonic-interactions-in-virtual-reality-state-of-the-art-current-challenges-and-future-directions
#6
Stefania Serafin, Michele Geronazzo, Cumhur Erkut, Niels C Nilsson, Rolf Nordahl
A high-fidelity but efficient sound simulation is an essential element of any VR experience. Many of the techniques used in virtual acoustics are graphical rendering techniques suitably modified to account for sound generation and propagation. In recent years, several advances in hardware and software technologies have been facilitating the development of immersive interactive sound-rendering experiences. In this article, we present a review of the state of the art of such simulations, with a focus on the different elements that, combined, provide a complete interactive sonic experience...
March 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29672252/human-centered-vr-design-five-essentials-every-engineer-needs-to-know
#7
Jason Jerald
We dont know all the answers about VR design, nor will we ever. However, five essential concepts discussed here can help you iterate toward building impactful VR experiences.
March 2018: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/29660958/immersive-virtual-reality-in-traumatic-brain-injury-rehabilitation-a-literature-review
#8
Jared Aida, Brian Chau, Justin Dunn
BACKGROUND: Traumatic brain injury (TBI) is a common cause of morbidity and mortality in the United States with its sequelae often affecting individuals long after the initial injury. Innovations in virtual reality (VR) technology may offer potential therapy options in the recovery from such injuries. However, there is currently no consensus regarding the efficacy of VR in the setting of TBI rehabilitation. OBJECTIVE: The aim of this review is to evaluate and summarize the current literature regarding immersive VR in the rehabilitation of those with TBI...
April 7, 2018: NeuroRehabilitation
https://www.readbyqxmd.com/read/29660956/effect-of-virtual-reality-training-on-walking-distance-and-physical-fitness-in-individuals-with-parkinson-s-disease
#9
Gileno Edu Lameira de Melo, Ana Francisca Rozin Kleiner, Jamile Benite Palma Lopes, Arislander Jonathan Lopes Dumont, Roberta Delasta Lazzari, Manuela Galli, Claudia Santos Oliveira
OBJECTIVE: To evaluate the effects of gait training with virtual reality (VR) on walking distance and physical fitness in individuals with Parkinson's Disease (PD). METHODS: Thirty-seven individuals with PD participated in this prospective, randomized, controlled clinical trial. They were randomly allocated to a control group submitted to conventional training (n = 12), a treadmill group submitted to gait training on a treadmill (n = 13) and a VR group submitted to gait training using the XboxTM (n = 12)...
April 7, 2018: NeuroRehabilitation
https://www.readbyqxmd.com/read/29658112/the-influential-factors-on-the-morphological-changes-of-upper-airway-associated-with-mouth-opening
#10
Bin Hu, Jingying Ye, Guoping Yin, Yuhuan Zhang
OBJECTIVE: This study aimed to evaluate the influential factors on the morphological changes of upper airway caused by mouth opening (MO). METHODS: One hundred and thirty-eight obstructive sleep apnea-hypopnea syndrome (OSAHS) patients were enrolled. Anthropometric and demographic data, Friedman tongue position (FTP), and tonsil scores were recorded. Overnight polysomnography and upper airway computed tomography scans under two conditions (mouth closed [MC] and MO) were acquired...
April 15, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29655414/augmented-reality-ar-and-virtual-reality-vr-applied-in-dentistry
#11
REVIEW
Ta-Ko Huang, Chi-Hsun Yang, Yu-Hsin Hsieh, Jen-Chyan Wang, Chun-Cheng Hung
The OSCE is a reliable evaluation method to estimate the preclinical examination of dental students. The most ideal assessment for OSCE is used the augmented reality simulator to evaluate. This literature review investigated a recently developed in virtual reality (VR) and augmented reality (AR) starting of the dental history to the progress of the dental skill. As result of the lacking of technology, it needs to depend on other device increasing the success rate and decreasing the risk of the surgery. The development of tracking unit changed the surgical and educational way...
April 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29652243/dorsal-rhizotomy-for-children-with-spastic-diplegia-of-cerebral-palsy-origin-usefulness-of-intraoperative-monitoring
#12
George Georgoulis, Andrei Brînzeu, Marc Sindou
OBJECTIVE The utility of intraoperative neuromonitoring (ION), namely the study of muscle responses to radicular stimulation, remains controversial. The authors performed a prospective study combining ventral root (VR) stimulation for mapping anatomical levels and dorsal root (DR) stimulation as physiological testing of metameric excitability. The purpose was to evaluate to what extent the intraoperative data led to modifications in the initial decisions for surgical sectioning established by the pediatric multidisciplinary team (i...
April 13, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29652042/-motor-learning-of-the-post-stroke-patients-presenting-with-upper-limb-paresis-on-the-mechanotherapeutic-system
#13
A E Khizhnikova, A S Klochkov, A M Kotov-Smolensky, L A Chernikova, N A Suponeva, M A Piradov
BACKGROUND: the relevance of this study arises from the high prevalence of upper limb motor impairment and pathological synergy in the post-stroke patients; these conditions are very difficult to correct with the use of the traditional rehabilitation methods. A promising but insufficiently studied approaches are the virtual reality (VR) technology as well as its combination with other techniques. AIM: The objective of the present study was to evaluate the influence of the training making use of the mechanotherapeutic system on the motor function of the paretic hand...
April 9, 2018: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/29649669/360%C3%A2-virtual-reality-video-for-the-acquisition-of-knot-tying-skills-a-randomised-control-trial
#14
S Yoganathan, D A Finch, Ed Parkin, James Pollard
BACKGROUND: 360° virtual reality (VR) video is an exciting and evolving field. Current technology promotes a totally immersive, 3-dimensional (3D), 360° experience anywhere in the world using simply a smart phone and virtual reality headset. The potential for its application in the field of surgical education is enormous. The aim of this study was to determine knot tying skills taught with a 360-degree VR video compared to conventional 2D video teaching. MATERIAL AND METHODS: This trial was a prospective, randomised controlled study...
April 9, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29644746/the-distinct-phopr-mediated-responses-to-phosphate-limitation-in-bacillus-subtilis-subspecies-subtilis-and-spizizenii-stem-from-differences-in-wall-teichoic-acid-composition-and-metabolism
#15
Michael P Prunty, David Noone, Kevin M Devine
The PhoPR-mediated response to phosphate limitation (PHO response) in Bacillus subtilis subsp subtilis is amplified and maintained by reducing the level of Lipid VG composed of poly(glycerol phosphate), a wall teichoic acid (WTA) biosynthetic intermediate that inhibits PhoR autokinase activity. However, the reduction in Lipid VG level is effected by activated PhoP∼P, raising the question of how the PHO response is first initiated. Furthermore, that WTA is composed of poly(ribitol phosphate) in Bacillus subtilis subsp spizizenii prompted an investigation of how the PHO response is regulated in that bacterium...
April 12, 2018: Molecular Microbiology
https://www.readbyqxmd.com/read/29643594/the-effect-of-a-vr-exercise-program-on-falls-and-depression-in-the-elderly-with-mild-depression-in-the-local-community
#16
Jong-Eun Yang, Tac-Young Lee, Jin-Kyung Kim
[Purpose] The purpose of this study is to explore the effect of a VR exercise program on falls and depression in the elderly with mild depression who reside in the local community. [Subjects and Methods] This study was performed by targeting 15 elderly subjects with mild depression who resided in the local community. The targeted subjects voluntarily selected 3 VR exercise programs (each lasting 10 minutes) among 4 activities, and a resting time of 5 minutes was given for an interval after each activity. The VR exercise program was performed for total 12 weeks (36 times), 3 times a week, 45 minutes per session...
December 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29643584/effects-of-virtual-reality-intervention-on-upper-limb-motor-function-and-activity-of-daily-living-in-patients-with-lesions-in-different-regions-of-the-brain
#17
Sang-Mi Jung, Won-Ho Choi
[Purpose] This study aimed to investigate whether a virtual reality (VR) intervention has an influence in improving the motor function and activities of daily living (ADLs) in patients with lesions in different regions of the brain. [Subjects and Methods] Eleven subjects with hemiplegic stroke were recruited in this study, which was conducted from January to February, 2017. They received a VR intervention once a day for 30 min, 5 times a week for 4 weeks. The Fugl-Meyer Assessment (FMA) and the Korean version of the Modified Barthel Index (K-MBI) were used to assess the post-stroke patients' motor function and ADLs, respectively...
December 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29617696/vr-10-thrombospondin-1-synthetic-polypeptide-s-impact-on-rhesus-choroid-retinal-endothelial-cells
#18
Run Tian, Fang Han, Jun Yang, Hai-Yan Zhao, Yan Mei, Ai-Ping Deng, Lin Fang, Xi-Rui Zhang
BACKGROUND/AIMS: This study aimed to investigate the effects of the VR-10 TSP-1 synthetic polypeptide on cytokines and the proliferation and migration of endothelial cells, as well as exploring a new method for anti-ocular neoangiogenesis. METHODS: We measured the proliferation of RF/6A cells by an MTT assay and investigated the migration of RF/6A cells by a Transwell chamber assay. We examined the mRNA transcript levels of TGF-β2, VEGF, PEDF, Bcl-2 and FasL in RF/6A cells by RT-PCR and evaluated the expression of Fas and caspase-3 proteins in RF/6A cells by western blot analysis...
March 28, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29609690/efficacy-of-entecavir-based-rescue-therapy-in-lamivudine-resistant-chronic-hepatitis-b-patients-in-china-a-retrospective-study
#19
Wei Li, Linhai Wang, Yanhong Liu, Yan Li, Shirong Yu
Limited studies have investigated the antiviral efficacy of entecavir (ETV)-based rescue therapy in lamivudine (LAM)-resistant chronic hepatitis B (CHB) patients. We retrospectively analyzed the efficacy of entecavir (ETV) monotherapy versus ETV-tenofovir disoproxil fumarate (TDF) combination therapy in 220 LAM-resistant CHB patients. Among 220 patients, 114 patients were treated with ETV monotherapy and 106 were treated with ETV-TDF combination therapy for at least 24 months. There were no significant differences between the two groups in baseline characteristics...
April 2, 2018: Die Pharmazie
https://www.readbyqxmd.com/read/29607486/flesh-and-bone-digital-sociality-on-how-humans-may-go-virtual
#20
Alessandro Monti, Salvatore Maria Aglioti
Research on virtual reality (VR) has gained momentum over the last fifteen years or so. In their review, Pan and Hamilton (2018, British Journal of Psychology) show how the different types of VR devices have the potential to probe fundamental psychological constructs, like those underlying social interactions. Expanding on their work, we propose a research agenda to increase the sense of co-presence and make VR more real than reality through bodily illusions, multisensory stimulation, self-conscious emotions, and multisubject social cognition...
April 1, 2018: British Journal of Psychology
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