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How much is too much for venous malformation management?
Published in Byung-Boong Lee, Peter Gloviczki, Francine Blei, Jovan N. Markovic, Vascular Malformations, 2019
The goals of VM medical management are pain control, the prevention of venous ectasia and its associated localized intravascular coagulopathy, and treatment of secondary symptoms (e.g., anemia caused by bleeding).13 When possible, compression therapy should be utilized to aid in the treatment of swelling and thrombophlebitis. Appropriate selection of a compression method may be difficult. Common types include bandages, garments, and pneumatic compression devices. The compression helps to reduce swelling and pain in many patients with extensive VMs. Compression garments can also improve blood clotting abnormalities that can be seen sometimes in VMs.13
Cloud computing for big data
Published in Jun Deng, Lei Xing, Big Data in Radiation Oncology, 2019
One of the key technologies enabling Cloud computing is virtualization. Virtualization allows Cloud providers to abstract away the hardware infrastructure and present the user with an array of virtual computers (also known as a virtual machine, or VM) with customizable characteristics (e.g., compute power, memory size, and storage size). A VM is essentially a software program that emulates a computer, in other words, a computer simulation running on a physical computer. This paradigm provides capabilities that are not available when running applications directly on the native hardware. Virtual machines can be created, destroyed, replicated, or migrated to any physical data center connected to the Web on demand. Furthermore, snapshots recapitulating the state of a VM can be acquired and stored to easily recall or duplicate a given VM.
Vascular tumours and congenital vascular malformations
Published in Ken Myers, Paul Hannah, Marcus Cremonese, Lourens Bester, Phil Bekhor, Attilio Cavezzi, Marianne de Maeseneer, Greg Goodman, David Jenkins, Herman Lee, Adrian Lim, David Mitchell, Nick Morrison, Andrew Nicolaides, Hugo Partsch, Tony Penington, Neil Piller, Stefania Roberts, Greg Seeley, Paul Thibault, Steve Yelland, Manual of Venous and Lymphatic Diseases, 2017
Ken Myers, Paul Hannah, Marcus Cremonese, Lourens Bester, Phil Bekhor, Attilio Cavezzi, Marianne de Maeseneer, Greg Goodman, David Jenkins, Herman Lee, Adrian Lim, David Mitchell, Nick Morrison, Andrew Nicolaides, Hugo Partsch, Tony Penington, Neil Piller, Stefania Roberts, Greg Seeley, Paul Thibault, Steve Yelland
VM are the most common form of malformation. They can affect any tissue or organ and may be focal, multifocal or diffuse, the latter typically involving an entire muscle or limb. One classification refers to 94% sporadic venous malformations (VM), 5% dominantly inherited glomuvenous malformations (GVM) and 1% dominantly inherited cutaneo-mucosal venous malformations (VMCM).10
Central vestibular dysfunction: don’t forget vestibular rehabilitation
Published in Expert Review of Neurotherapeutics, 2022
Sulin Zhang, Dan Liu, E. Tian, Jun Wang, Zhaoqi Guo, Weijia Kong
Vestibular migraine (VM) is now a distinct disease entity as proposed by both the Barany Society and the International Headache Society [59,60]. VM patients may suffer from peripheral or central vestibular dysfunction between episodes [61,62]. The pathophysiology of VM is not fully known, and it is generally believed to involve trigemino-vascular reflex, cortical spreading depression, ion channel dysfunction, genetic factors and neurotransmitter abnormality (Figure 3) [63]. Meanwhile, the growing base of knowledge concerning migraine generally points to both central and peripheral mechanisms. In the cerebral cortex, evidence suggests that visual auras are due to cortical spreading depression, a transient reversible wave of depolarization triggered by the activation of cortical pyramidal cells [64]. The diagnosis of vestibular migraine is based on recurrent vestibular symptoms, a history of migraine, a temporal association between vestibular symptoms and migraine ones and elimination of other causes of vestibular symptoms. It mimics virtually all forms of dizziness in terms of symptoms, duration, and pattern of attacks and tends to be misdiagnosed [65,66]. The prevalence of VM is 2.7% in population studies and 10% in outpatient clinics [67–69]. For patients with VM, it is also important to consider comorbidities such as Meniere’s disease, BPPV, anxiety and depression, which significantly affect the quality of life. Subjects with VM also pose a heavy burden on the health-care system [68].
Implementation of video modeling in the occupational therapy intervention process for children and adolescents with special needs: A scoping review
Published in Occupational Therapy In Health Care, 2021
Nurbieta Abd Aziz, Masne Kadar, Dzalani Harun, Hanif Farhan Mohd Rasdi
There are multiple kinds of technologies incorporated with VM used to teach children and adolescents with special needs (Campbell et al., 2015; Hochhauser et al., 2015; Meister & Salls, 2015; Rosen et al., 2017; Stewart & Umeda, 2014). Notably, with rapid changes in technology, some of the technological devices are commonly placed in educational settings, and rehabilitation therapy programs. The most commonly used technology-based intervention is VM. Devices used to produce VM include iPads, iPods, iPhones, computers or laptops (Hochhauser et al., 2015; Rosen et al., 2017), MP4 players (Campbell et al., 2015), video cameras, Galaxy Tabs or smart phones (which include Android), tablet computers, digital video disks (DVDs) or computers with a video player (e.g., Real Player, Apple Quick Time Player, Windows Media Player), of which, the last two technologies are more traditional modes of presentation. Furthermore, smart devices and applications (or ‘apps’) can now provide access to integrate with VM, and the contents and structures of VM are added with alternative multimedia such as texts, photos, videos, audio, and visual (Hochhauser et al., 2015).
Comparing the effectiveness of virtual reality and video modelling as an intervention strategy for individuals with Autism Spectrum Disorder: Brief report
Published in Developmental Neurorehabilitation, 2018
Emily Fitzgerald, Hui Kee Yap, Charlotte Ashton, Dennis W Moore, Brett Furlonger, Angelika Anderson, Richard Kickbush, James Donald, Margherita Busacca, Derek L English
Researchers have argued that VR is well matched to the learning needs of those with ASD and potentially provides unique advantages as an intervention for adults with ASD. 15 What sets VR apart from 2D VM is the degree to which users feel present within the virtual environment (VE) 18, increasing their attention to relevant stimuli. 25 Another unique feature of VR is the ability to interact with the VE. 15 VR can provide less hazardous and more forgiving environments for developing daily living skills, which might otherwise be considered unsafe. 16 Hence VR has the potential to be more conducive to learning than VM. However, the technology does not come without cost as the production of the 3D imagery remains technically demanding and time consuming.