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https://www.readbyqxmd.com/read/27909495/the-wearable-cardioverter-defibrillator-toy-or-tool
#1
REVIEW
David Duncker Md, Christian Veltmann Md
After the success story of implantable cardioverter/defibrillator systems, prevention of sudden cardiac death (SCD) remains one of the main duties in cardiology. For patients with unkown or transient risk profile for SCD, a wearable cardioverter/defibrillator (WCD) has been established for temporary and effective prevention of sudden arrhythmic death. Several studies have shown safety and efficacy of the WCD, even though randomized studies proving a mortality benefit are still lacking. This review provides an overview of actual WCD data and usage, special indications and possible risks and complications...
April 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27908813/coil-embolization-assisted-thoracic-endovascular-aortic-repair-for-multiple-saccular-descending-aortic-aneurysms-with-insufficient-landing-zone
#2
Akito Imai, Tomomi Nakajima, Masataka Sato, Yasunori Watanabe, Shunichi Kondo, Motoo Osaka, Yuji Hiramatsu
We report a coil embolization -assisted thoracic endovascular aortic repair technique successfully applied to multiple saccular descending aortic aneurysms in a 74-year-old man. Due to the most distal aneurysm being located at the celiac trunk level and the distance between the superior mesenteric artery and the aneurysm being only 10mm, a coil embolization of the distal saccular aneurysm was performed prior to stent delivery to secure a sufficient landing zone. Postoperative computed tomography showed an appropriate positioning of the endovascular devices without endoleak...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27906403/printable-ink-lenses-diffusers-and-2d-gratings
#3
Rajib Ahmed, Ali K Yetisen, Anthony El Khoury, Haider Butt
Advances in holography have led to applications including data storage, displays, security labels, and colorimetric sensors. However, existing top-down approaches for the fabrication of holographic devices are complex, expensive, and expertise dependent, limiting their use in practical applications. Here, ink-based holographic devices have been created for a wide range of applications in diffraction optics. A single pulse of a 3.5 ns Nd:YAG laser allowed selective ablation of ink to nanofabricate planar optical devices...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27906248/experimental-measurement-device-independent-quantum-key-distribution-with-uncharacterized-encoding
#4
Chao Wang, Shuang Wang, Zhen-Qiang Yin, Wei Chen, Hong-Wei Li, Chun-Mei Zhang, Yu-Yang Ding, Guang-Can Guo, Zheng-Fu Han
Measurement-device-independent quantum key distribution (MDI QKD) is an efficient way to share secrets using untrusted measurement devices. However, the assumption on the characterizations of encoding states is still necessary in this promising protocol, which may lead to unnecessary complexity and potential loopholes in realistic implementations. Here, by using the mismatched-basis statistics, we present the first proof-of-principle experiment of MDI QKD with uncharacterized encoding sources. In this demonstration, the encoded states are only required to be constrained in a two-dimensional Hilbert space, and two distant parties (Alice and Bob) are resistant to state preparation flaws even if they have no idea about the detailed information of their encoding states...
December 1, 2016: Optics Letters
https://www.readbyqxmd.com/read/27899293/valvular-regurgitation-after-implantation-of-prostheses-secured-with-cor-knot-automated-fasteners
#5
Alexander A Brescia, Steven F Bolling, Himanshu J Patel
Valvular regurgitation is a recognized complication of aortic and mitral valve procedures, with paravalvular leak the primary mechanism and transvalvular less common. The Cor-knot automated fastener (LSI SOLUTIONS, Victor, NY, USA) has been shown to be a safe, viable alternative to knot pushers or manual tying for use in these procedures. Here we present two cases in which Cor-Knot fastener orientation appeared to result in transvalvular regurgitation necessitating redo operation. With adjunctive use of Cor-Knot devices, fastener orientation relative to valve geometry must be assessed for optimal results...
November 26, 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27889585/devices-and-dressings-to-secure-peripheral-venous-catheters-a-cochrane-systematic-review-and-meta-analysis
#6
Nicole Marsh, Joan Webster, Gabor Mihala, Claire M Rickard
BACKGROUND: Peripheral venous catheterisation is the most frequent invasive procedure performed in hospitalised patients; yet over 30% of peripheral venous catheters fail before treatment ends. OBJECTIVES: To assess the effects of peripheral venous catheter dressings and securement devices on the incidence of peripheral venous catheter failure. DATA SOURCES: We searched the Cochrane Wounds Group Register, The Cochrane Central Register of Controlled Trials, MEDLINE; EMBASE and CINAHL for any randomised controlled trials comparing different dressings or securement devices used to stabilise peripheral venous catheters...
November 16, 2016: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/27875647/what-pacemakers-can-teach-us-about-the-ethics-of-maintaining-artificial-organs
#7
Katrina Hutchison, Robert Sparrow
One day soon it may be possible to replace a failing heart, liver, or kidney with a long-lasting mechanical replacement or perhaps even with a 3-D printed version based on the patient's own tissue. Such artificial organs could make transplant waiting lists and immunosuppression a thing of the past. Supposing that this happens, what will the ongoing care of people with these implants involve? In particular, how will the need to maintain the functioning of artificial organs over an extended period affect patients and their doctors and the responsibilities of those who manufacture such devices? Drawing on lessons from the history of the cardiac pacemaker, this article offers an initial survey of the ethical issues posed by the need to maintain and service artificial organs...
November 2016: Hastings Center Report
https://www.readbyqxmd.com/read/27871543/soft-palate-trauma-induced-during-glidescope-intubation
#8
Joseph P Allencherril, Linda Joseph
The GlideScope (GVL; Saturn Biomedical Systems, Burnaby, British Columbia, Canada) is a rigid indirect video laryngoscope device that facilitates exposure of the larynx for placement of the endotracheal tube. This blade also reduces the requirement for anterior displacement of the tongue. A unique feature is the acutely angled blade which provides an improved glottic view. Herein, we present 2 instances of soft palate trauma, a rare oropharyngeal complication linked to GlideScope use. In the first case, the GlideScope was used for pedagogical purposes for intubation in a knee surgery...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27858431/measurement-device-independent-quantum-key-distribution-over-a-404%C3%A2-km-optical-fiber
#9
Hua-Lei Yin, Teng-Yun Chen, Zong-Wen Yu, Hui Liu, Li-Xing You, Yi-Heng Zhou, Si-Jing Chen, Yingqiu Mao, Ming-Qi Huang, Wei-Jun Zhang, Hao Chen, Ming Jun Li, Daniel Nolan, Fei Zhou, Xiao Jiang, Zhen Wang, Qiang Zhang, Xiang-Bin Wang, Jian-Wei Pan
Measurement-device-independent quantum key distribution (MDIQKD) with the decoy-state method negates security threats of both the imperfect single-photon source and detection losses. Lengthening the distance and improving the key rate of quantum key distribution (QKD) are vital issues in practical applications of QKD. Herein, we report the results of MDIQKD over 404 km of ultralow-loss optical fiber and 311 km of a standard optical fiber while employing an optimized four-intensity decoy-state method. This record-breaking implementation of the MDIQKD method not only provides a new distance record for both MDIQKD and all types of QKD systems but also, more significantly, achieves a distance that the traditional Bennett-Brassard 1984 QKD would not be able to achieve with the same detection devices even with ideal single-photon sources...
November 4, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27855685/understanding-the-barriers-to-successful-adoption-and-use-of-a-mobile-health-information-system-in-a-community-health-center-in-s%C3%A3-o-paulo-brazil-a-cohort-study
#10
Jayant V Rajan, Juliana Moura, Gato Gourley, Karina Kiso, Alexandre Sizilio, Ana Maria Cortez, Lee W Riley, Maria Amelia Veras, Urmimala Sarkar
BACKGROUND: Mobile technology to support community health has surged in popularity, yet few studies have systematically examined usability of mobile platforms for this setting. METHODS: We conducted a mixed-methods study of 14 community healthcare workers at a public healthcare clinic in São Paulo, Brazil. We held focus groups with community healthcare workers to elicit their ideas about a mobile health application and used this input to build a prototype app. A pre-use test survey was administered to all participants, who subsequently use-tested the app on three different devices (iPhone, iPad mini, iPad Air)...
November 17, 2016: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/27854497/combining-fda-labeling-and-lldp-for-securing-networked-medical-devices
#11
Robert Sayle
No abstract text is available yet for this article.
September 2016: Biomedical Instrumentation & Technology
https://www.readbyqxmd.com/read/27853621/silicone-wristbands-detect-individuals-pesticide-exposures-in-west-africa
#12
Carey E Donald, Richard P Scott, Kathy L Blaustein, Mary L Halbleib, Makhfousse Sarr, Paul C Jepson, Kim A Anderson
We detected between 2 and 10 pesticides per person with novel sampling devices worn by 35 participants who were actively engaged in farming in Diender, Senegal. Participants were recruited to wear silicone wristbands for each of two separate periods of up to 5 days. Pesticide exposure profiles were highly individualized with only limited associations with demographic data. Using a 63-pesticide dual-column gas chromatography-electron capture detector (GC-ECD) method, we detected pyrethoid insecticides most frequently, followed by organophosphate pesticides which have been linked to adverse health outcomes...
August 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27849887/245-decreasing-pressure-injury-from-medical-devices-a-new-nasal-endotracheal-tube-securement-method
#13
Elizabeth Jasper, Greg Robinson, Jacquelyn Fuller, Catherine Bull
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27849019/x-ray-scintillation-in-lead-halide-perovskite-crystals
#14
M D Birowosuto, D Cortecchia, W Drozdowski, K Brylew, W Lachmanski, A Bruno, C Soci
Current technologies for X-ray detection rely on scintillation from expensive inorganic crystals grown at high-temperature, which so far has hindered the development of large-area scintillator arrays. Thanks to the presence of heavy atoms, solution-grown hybrid lead halide perovskite single crystals exhibit short X-ray absorption length and excellent detection efficiency. Here we compare X-ray scintillator characteristics of three-dimensional (3D) MAPbI3 and MAPbBr3 and two-dimensional (2D) (EDBE)PbCl4 hybrid perovskite crystals...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27847867/multicolor-3d-meta-holography-by-broadband-plasmonic-modulation
#15
Xiong Li, Lianwei Chen, Yang Li, Xiaohu Zhang, Mingbo Pu, Zeyu Zhao, Xiaoliang Ma, Yanqin Wang, Minghui Hong, Xiangang Luo
As nanofabrication technology progresses, the emerging metasurface has offered unique opportunities for holography, such as an increased data capacity and the realization of polarization-sensitive functionality. Multicolor three-dimensional (3D) meta-hologram imaging is one of the most pursued applications for meta-hologram not yet realized. How to reduce the cross-talk among different colors in broad bandwidth designs is a critical question. On the basis of the off-axis illumination method, we develop a novel way to overcome the cross-talk limitation and achieve multicolor meta-holography with a single type of plasmonic pixel...
November 2016: Science Advances
https://www.readbyqxmd.com/read/27844111/-comprehensive-system-integration-and-networking-in-operating-rooms
#16
H Feußner, D Ostler, N Kohn, T Vogel, D Wilhelm, S Koller, M Kranzfelder
BACKGROUND: A comprehensive surveillance and control system integrating all devices and functions is a precondition for realization of the operating room of the future. STATE OF THE ART: Multiple proprietary integrated operation room systems are currently available with a central user interface; however, they only cover a relatively small part of all functionalities. INNOVATIVE APPROACHES: Internationally, there are at least three different initiatives to promote a comprehensive systems integration and networking in the operating room: the Japanese smart cyber operating theater (SCOT), the American medical device plug-and-play interoperability program (MDPnP) and the German secure and dynamic networking in operating room and hospital (OR...
December 2016: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/27837161/design-of-hack-resistant-diabetes-devices-and-disclosure-of-their-cyber-safety
#17
Jonathan Sackner-Bernstein
BACKGROUND: The focus of the medical device industry and regulatory bodies on cyber security parallels that in other industries, primarily on risk assessment and user education as well as the recognition and response to infiltration. However, transparency of the safety of marketed devices is lacking and developers are not embracing optimal design practices with new devices. ACHIEVING CYBER SAFE DIABETES DEVICES: To improve understanding of cyber safety by clinicians and patients, and inform decision making on use practices of medical devices requires disclosure by device manufacturers of the results of their cyber security testing...
November 10, 2016: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/27836593/mobile-phone-based-biosensing-an-emerging-diagnostic-and-communication-technology
#18
REVIEW
Daniel Quesada-González, Arben Merkoçi
In this review we discuss recent developments on the use of mobile phones and similar devices for biosensing applications in which diagnostics and communications are coupled. Owing to the capabilities of mobile phones (their cameras, connectivity, portability, etc.) and to advances in biosensing, the coupling of these two technologies is enabling portable and user-friendly analytical devices. Any user can now perform quick, robust and easy (bio)assays anywhere and at any time. Among the most widely reported of such devices are paper-based platforms...
October 27, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27834796/a-harmonized-perspective-on-transportation-management-in-smart-cities-the-novel-iot-driven-environment-for-road-traffic-modeling
#19
Pavel Masek, Jan Masek, Petr Frantik, Radek Fujdiak, Aleksandr Ometov, Jiri Hosek, Sergey Andreev, Petr Mlynek, Jiri Misurec
The unprecedented growth of today's cities together with increased population mobility are fueling the avalanche in the numbers of vehicles on the roads. This development led to the new challenges for the traffic management, including the mitigation of road congestion, accidents, and air pollution. Over the last decade, researchers have been focusing their efforts on leveraging the recent advances in sensing, communications, and dynamic adaptive technologies to prepare the deployed road traffic management systems (TMS) for resolving these important challenges in future smart cities...
November 8, 2016: Sensors
https://www.readbyqxmd.com/read/27830234/unintended-consequences-of-wearable-sensor-use-in-healthcare-contribution-of-the-imia-wearable-sensors-in-healthcare-wg
#20
M Schukat, D McCaldin, K Wang, G Schreier, N H Lovell, M Marschollek, S J Redmond
OBJECTIVES: As wearable sensors take the consumer market by storm, and medical device manufacturers move to make their devices wireless and appropriate for ambulatory use, this revolution brings with it some unintended consequences, which we aim to discuss in this paper. METHODS: We discuss some important unintended consequences, both beneficial and unwanted, which relate to: modifications of behavior; creation and use of big data sets; new security vulnerabilities; and unforeseen challenges faced by regulatory authorities, struggling to keep pace with recent innovations...
November 10, 2016: Yearbook of Medical Informatics
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