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https://www.readbyqxmd.com/read/28647354/the-future-of-endoscopic-retrograde-cholangiopancreatography
#1
EDITORIAL
Patrick S Yachimski, Andrew Ross
Since its introduction nearly 50 years ago, there has been considerable evolution in the practice and performance of ERCP. On the one hand, therapeutic ERCP has supplanted surgical and percutaneous radiologic procedures to emerge as the dominant method for pancreaticobiliary intervention. In other instances, the role of ERCP has been eroded by competing technologies, revised by controlled data which question the risk/benefit profile of ERCP-guided intervention for specific indications, and challenged by systems issues such as duodenoscope reprocessing...
June 21, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28632985/healable-reconfigurable-reprocessable-thermoset-shape-memory-polymer-with-highly-tunable-topological-rearrangement-kinetics
#2
Zizheng Fang, Ning Zheng, Qian Zhao, Tao Xie
The unique capability of topological rearrangement for dynamic covalent polymer networks has enabled various unusual properties (self-healing, solid-state plasticity, and reprocessability) that are not found in conventional thermosets. Achieving these properties in one network in a synergetic fashion can open up new opportunities for shape memory polymer. To accomplish such a goal, the freedom to tune topological rearrangement kinetics is critical. This is, however, challenging to achieve. In this work, two sets of dynamic bonds (urethane and hindered urea) are incorporated into a hybrid network for synthesizing shape memory poly(urea-urethane)...
June 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28625700/the-effectiveness-of-sterilization-for-flexible-ureteroscopes-a-real-world-study
#3
Cori L Ofstead, Otis L Heymann, Mariah R Quick, Ellen A Johnson, John E Eiland, Harry P Wetzler
BACKGROUND: There are no guidelines or quality benchmarks specific to ureteroscope reprocessing, and patient injuries and infections have been linked to ureteroscopes. This prospective study evaluated ureteroscope reprocessing effectiveness. METHODS: Reprocessing practices at 2 institutions were assessed. Microbial cultures, biochemical tests, and visual inspections were conducted on sterilized ureteroscopes. RESULTS: Researchers examined 16 ureteroscopes after manual cleaning and sterilization using hydrogen peroxide gas...
May 4, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28620323/integrated-trauma-focused-cognitive-behavioural-therapy-for-post-traumatic-stress-and-psychotic-symptoms-a-case-series-study-using-imaginal-reprocessing-strategies
#4
Nadine Keen, Elaine C M Hunter, Emmanuelle Peters
Despite high rates of trauma in individuals with psychotic symptoms, post-traumatic stress symptoms are frequently overlooked in clinical practice. There is also reluctance to treat post-traumatic symptoms in case the therapeutic procedure of reprocessing the trauma exacerbates psychotic symptoms. Recent evidence demonstrates that it is safe to use reprocessing strategies in this population. However, most published studies have been based on treating post-traumatic symptoms in isolation from psychotic symptoms...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28616137/multi-stimuli-responsive-and-multi-functional-oligoaniline-modified-vitrimers
#5
Qiaomei Chen, Xiaowen Yu, Zhiqiang Pei, Yang Yang, Yen Wei, Yan Ji
Smart polymers have been playing indispensable roles in our lives. However, it is challenging to combine more than three stimuli-responses or functionalities into one polymer, not to mention integrating multi-stimuli responsivity and multi-functionality at the same time. Vitrimers, an emerging type of materials, are covalently crosslinked networks that can be reprocessed but are still infusible and insoluble. Herein, we show that simply introducing oligoaniline into a vitrimer results in a covalently crosslinked material that can respond to six different stimuli (heat, light, pH, voltage, metal ions and redox chemicals) and perform six functions (shape memory, welding, healing, recycling, electro-chromism and adsorption of metal ions)...
January 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28614234/motion-based-equilibrium-reprocessing-therapy-a-novel-treatment-method-for-chronic-peripheral-vestibulopathies-a-pilot-study
#6
Mirke S Hondebrink, Agali Mert, Roos van der Lint, J Alexander de Ru, Peter van der Wurff
Rehabilitation for vestibular disease is a safe method to partially alleviate symptoms of vertigo. It was hypothesized that principles of military aviation vestibular desensitization procedures that have a success rate of more than 80% can be extrapolated to chronic vestibular disease as well.The virtual reality motion base computer-assisted rehabilitation environment was used as treatment modality in 17 patients. They were exposed to sinusoidal vertical passive whole body motion in increasing intensity for a maximum of 12 sessions...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28609794/-destruction-of-microsurgical-devices-by-sterilisation
#7
Raphaela Berto, Jürgen Strutz
Hospital facilities issue numerous risk announcements on corrosion, deformation or premature wearout of medical devices every year. As there is yet little data on the impact of reprocessing on the quality and durability of microsurgical instruments, this paper aims at evaluating the effects of the reprocessing on microsurgical instruments. Material and Methods 22 brand new microsurgical instruments for stapes surgery were being reprocessed 30 times without being used for surgery or other purposes in the interim time...
June 13, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28606295/-diagnosing-and-treating-post-traumatic-stress-disorder
#8
Cæcilie Böck Buhmann, Henrik Steen Andersen
The post-traumatic stress disorder (PTSD) diagnosis has undergone large developments. With the changes in DSM-5 and the proposed changes in ICD-11, the two systems move in different directions. Treatment for PTSD is developing, but the evidence for the effect is lacking behind. Trauma-focused cognitive behavioural therapy and eye movement desensitization and reprocessing remain first choice. Pharmacotherapy is secondary. There is evidence for the effect of paroxetine, venlafaxine and fluoxetine and less so for sertraline...
June 12, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28605817/-handling-and-reprocessing-of-semicritical-medical-devices-in-the-ent-a-prospective-study
#9
Roland Hülse, Angela Wenzel, J Ulrich Sommer, Manfred Hülse, Karl Hörmann
Numerous laws, guidelines and recommendations govern the handling and reprocessing of semi-critical medical devices in the field of ENT. Although mechanically reprocessing is characterized as a preferential, manual reprocessing is still conducted in most ENT clinics and medical practices for reasons of cost and practicability. In the presented study, we developed an optimized hygienic concept for reprocessing of medical products in the field of ENT.A demand analysis of rigid endoscopes and of ENT equipment was carried out based on hypothesis that only mechanical reprocessing was performed for the entire instrumentation...
June 12, 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28597930/infection-control-guidelines-for-optometrists-2016
#10
Ka-Yee Lian, Genevieve Napper, Fiona J Stapleton, Patricia M Kiely
BACKGROUND: This paper provides an updated version of the paper: Infection control guidelines for optometrists 2007. METHODS: Information from peer-reviewed journal articles, guidelines from professional societies, and government health department and other websites and instructions from equipment manufacturers were considered in determining infection risk factors in optometric practice. They were used to revise the recommendations on disinfection, sterilisation and reprocessing procedures for instrumentation and other equipment used in optometric practice as well as personal infection control measures to be undertaken by staff...
June 9, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28585247/tunable-photocontrolled-motions-using-stored-strain-energy-in-malleable-azobenzene-liquid-crystalline-polymer-actuators
#11
Xili Lu, Shengwei Guo, Xia Tong, Hesheng Xia, Yue Zhao
A new strategy for enhancing the photoinduced mechanical force is demonstrated using a reprocessable azobenzene-containing liquid crystalline network (LCN). The basic idea is to store mechanical strain energy in the polymer beforehand so that UV light can then be used to generate a mechanical force not only from the direct light to mechanical energy conversion upon the trans-cis photoisomerization of azobenzene mesogens but also from the light-triggered release of the prestored strain energy. It is shown that the two mechanisms can add up to result in unprecedented photoindued mechanical force...
June 6, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28579965/neural-correlates-of-psychotherapeutic-treatment-of-post-traumatic-stress-disorder-a-systematic-literature-review
#12
Kathrin Malejko, Birgit Abler, Paul L Plener, Joana Straub
OBJECTIVES: Post-traumatic stress disorder (PTSD) is a common psychiatric disease with changes in neural circuitries. Neurobiological models conceptualize the symptoms of PTSD as correlates of a dysfunctional stress reaction to traumatic events. Functional imaging studies showed an increased amygdala and a decreased prefrontal cortex response in PTSD patients. As psychotherapeutic approaches represent the gold standard for PTSD treatment, it is important to examine its underlying neurobiological correlates...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28577923/using-adenosine-tri-phosphate-bioluminescence-to-validate-decontamination-of-endoscopes
#13
Elizabeth Gillespie
The reports of outbreaks involving carbapenemase resistant enterobacteriaceae (CRE) associated with gastrointestinal endoscopy prompted a review and study of a novel method of assessing cleaning. We used adenosinetriphosphate (ATP) bioluminescence to demonstrate cleanliness prior to endoscopy. We compared ATP testing with microbiological monitoring for 127 endoscopes. Samples were taken after cleaning, reprocessing and storage, but immediately before the endoscopy procedure. We recommend implementing ATP testing prior to endoscopy procedures as an alternative to microbiological testing at periodic intervals...
May 31, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28551023/a-novel-polytetrafluoroethylene-channel-model-which-simulates-low-levels-of-culturable-bacteria-in-build-up-biofilm-after-repeated-endoscope-reprocessing
#14
Michelle J Alfa, Maira M Ribeiro, Cristiana da Costa Luciano, Rodrigo Franca, Nancy Olson, Pat DeGagne, Harminder Singh
BACKGROUND AND AIMS: Clinical studies have shown variable culture results from flexible endoscope channels possibly due to low levels of bacteria that are difficult to extract. The aim of this study was to develop a simulated-use buildup biofilm (BBF) model that mimics low levels of viable bacteria after repeated rounds of aldehyde fixation and accumulation. METHODS: New endoscope channels were exposed to eight days of repeated rounds of biofilm formation using ATS2015 containing Enterococcus faecalis and Pseudomonas aeruginosa, rinsing, fixation with glutaraldehyde and rinsing...
May 24, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28548492/systematic-investigation-of-the-in-situ-reduction-process-from-u-vi-to-u-iv-in-a-phosphonate-system-under-mild-solvothermal-conditions
#15
Lanhua Chen, Juan Diwu, Daxiang Gui, Yaxing Wang, Zhehui Weng, Zhifang Chai, Thomas E Albrecht-Schmitt, Shuao Wang
The oxidation state greatly affects the chemical behavior of uranium in the nuclear fuel cycle and in the environment. Phosphonate ligands, on the other hand, show strong complexation toward uranium at different oxidation states and are widely used in nuclear fuel reprocessing. Therefore, in this work, the reduction behavior of U(VI) with the presence of a phosphonate ligand is investigated under mild solvothermal conditions. By adjusting the reaction time, temperature, and counterion species, a series of uranium diphosphonates including two U(VI), seven U(IV), two mixed-valent U(IV/VI), and one distinct U(IV/V/VI) compounds were obtained...
May 26, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28515906/measurement-accuracy-of-total-cell-volume-by-automated-dialyzer-reprocessing-a-prospective-cohort-study
#16
Chatchai Kreepala, Aroonchai Sangpanich, Phirudee Boonchoo, Warit Rungsrithananon
INTRODUCTION: Dialyzer reprocessing machines have replaced human labor in preparing re-usable dialyzers. It also made the process of total cell volume (TCV) measurement become faster. Nevertheless, there has been a lack of data on efficacy of weight evaluation on TCV by machine compared to volume evaluation by the conventional method. The aim of this study was to evaluate the efficacy of TCV measurement performed by Kidney-Kleen(®) reprocessing machine, produced by MEDITOP Company in Thailand, compared to that of the conventional method...
June 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28513589/decoding-material-specific-memory-reprocessing-during-sleep-in-humans
#17
M Schönauer, S Alizadeh, H Jamalabadi, A Abraham, A Pawlizki, S Gais
Neuronal learning activity is reactivated during sleep but the dynamics of this reactivation in humans are still poorly understood. Here we use multivariate pattern classification to decode electrical brain activity during sleep and determine what type of images participants had viewed in a preceding learning session. We find significant patterns of learning-related processing during rapid eye movement (REM) and non-REM (NREM) sleep, which are generalizable across subjects. This processing occurs in a cyclic fashion during time windows congruous to critical periods of synaptic plasticity...
May 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28505439/anthropogenic-236-u-in-danish-seawater-global-fallout-versus-reprocessing-discharge
#18
Jixin Qiao, Peter Steier, Sven Nielsen, Xiaolin Hou, Per Roos, Robin Golser
This work focuses on the occurrence of (236)U in seawater along Danish coasts, which is the sole water-exchange region between the North Sea-Atlantic Ocean and the Baltic Sea. Seawater collected in 2013 and 2014 were analyzed for (236)U (as well as (238)U and (137)Cs). Our results indicate that (236)U concentrations in Danish seawater are distributed within a relatively narrow range of (3.6-8.2) × 10(7) atom/L and, to a certain extent, independent of salinity. (236)U/(238)U atomic ratios in Danish seawater are more than 4 times higher than the estimated global fallout value of 1× 10(-9)...
June 5, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28499830/implementation-of-a-systematic-culturing-program-to-monitor-efficacy-of-endoscope-reprocessing-outcomes-and-costs
#19
Gene K Ma, David A Pegues, Michael L Kochman, Kevin Alby, Neil O Fishman, Marianne Saunders, Carolyn Grous, Daniel T Dempsey, Gregory G Ginsberg
BACKGROUND AND AIMS: In 2015, the U.S. Food and Drug Administration and Centers for Disease Control and Prevention (CDC) issued guidance for duodenoscope culturing and reprocessing in response to outbreaks of carbapenem-resistant Enterobacteriaceae (CRE) duodenoscope-related infections. Based on this guidance, we implemented best practices for reprocessing and developed a systematic process for culturing endoscopes with elevator levers. The aim of this study is to report the outcomes and direct costs of this program...
May 9, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28492328/inhibition-of-radiolytic-molecular-hydrogen-formation-by-quenching-of-excited-state-water
#20
Gregory P Horne, Simon M Pimblott, Jay A LaVerne
Comparison of experimental measurements of the yield of molecular hydrogen produced in the gamma radiolysis of water and aqueous nitrate solutions with predictions of a Monte Carlo track chemistry model shows that the nitrate anion scavenging of the hydrated electron, its precursor, and hydrogen atom cannot account for the observed decrease in the yield at high nitrate anion concentrations. Inclusion of the quenching of excited states of water (formed by either direct excitation or reaction of the water radical cation with the precursor to the hydrated electron) by the nitrate anion into the reaction scheme provides excellent agreement between the stochastic calculations and experiment demonstrating the existence of this short-lived species and its importance in water radiolysis...
May 23, 2017: Journal of Physical Chemistry. B
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