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Prescribing errors

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https://www.readbyqxmd.com/read/28809715/prescribed-performance-control-of-uncertain-euler-lagrange-systems-subject-to-full-state-constraints
#1
Kai Zhao, Yongduan Song, Tiedong Ma, Liu He
This paper studies the zero-error tracking control problem of Euler-Lagrange systems subject to full-state constraints and nonparametric uncertainties. By blending an error transformation with barrier Lyapunov function, a neural adaptive tracking control scheme is developed, resulting in a solution with several salient features: 1) the control action is continuous and C¹ smooth; 2) the full-state tracking error converges to a prescribed compact set around origin within a given finite time at a controllable rate of convergence that can be uniformly prespecified; 3) with Nussbaum gain in the loop, the tracking error further shrinks to zero as t→∞; and 4) the neural network (NN) unit can be safely included in the loop during the entire system operational envelope without the danger of violating the compact set precondition imposed on the NN training inputs...
August 11, 2017: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28808959/deaths-from-medicines-a-systematic-analysis-of-coroners-reports-to-prevent-future-deaths
#2
Robin E Ferner, Craig Easton, Anthony R Cox
INTRODUCTION: Since legislation in 2009, coroners in England and Wales must make reports in cases where they believe it is possible to prevent future deaths. We categorised the reports and examined whether they could reveal preventable medication errors or novel adverse drug reactions. METHODS: We examined 500 coroners' reports by pre-defined criteria to identify those in which medicines played a part, and to collect information on coroners' concerns. RESULTS: We identified 99 reports (100 deaths) in which medicines or a part of the medication process or both were mentioned...
August 14, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28799408/assessment-of-apixaban-prescribing-patterns-for-nonvalvular-atrial-fibrillation-in-hospitalized-patients
#3
Caitlin M Gibson, Carmen B Smith, Sondra Davis, Michael J Scalese
BACKGROUND: Apixaban is a direct oral anticoagulant (DOAC) for the prevention of stroke and systemic embolism in patients with nonvalvular atrial fibrillation (NVAF). Other DOACs require renal dose adjustments based solely on creatinine clearance. Apixaban differs in that its dose adjustments are more complex, potentially leading to prescribing errors. OBJECTIVE: To determine if adherence to Food and Drug Administration (FDA)-approved dosing for apixaban is maintained in hospitalized patients with NVAF...
August 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28793906/the-impact-of-a-hospital-electronic-prescribing-and-medication-administration-system-on-medication-administration-safety-an-observational-study
#4
Seetal Jheeta, Bryony Dean Franklin
BACKGROUND: The aim of the study was to explore the impact of the implementation of an electronic prescribing and medication administration system (ePA) on the safety of medication administration in an inpatient hospital setting. Objectives were to compare the prevalence and types of: 1) medication administration errors, and 2) documentation discrepancies, between a paper and an ePA system. Additionally, we wanted to describe any observed changes to medication administration practices...
August 9, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28791132/waterjet-and-laser-etching-the-nonlinear-inverse-problem
#5
A Bilbao-Guillerna, D A Axinte, J Billingham, G B J Cadot
In waterjet and laser milling, material is removed from a solid surface in a succession of layers to create a new shape, in a depth-controlled manner. The inverse problem consists of defining the control parameters, in particular, the two-dimensional beam path, to arrive at a prescribed freeform surface. Waterjet milling (WJM) and pulsed laser ablation (PLA) are studied in this paper, since a generic nonlinear material removal model is appropriate for both of these processes. The inverse problem is usually solved for this kind of process by simply controlling dwell time in proportion to the required depth of milling at a sequence of pixels on the surface...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28782989/longitudinal-modelling-of-the-exposure-of-young-uk-patients-with-pku-to-acesulfame-k-and-sucralose
#6
J Aaron O'Sullivan, Sandrine Pigat, Cian O'Mahony, Michael J Gibney, Aideen I McKevitt
Artificial sweeteners are used in protein substitutes intended for the dietary management of inborn errors of metabolism (Phenylketonuria, PKU) to improve the variety of medical foods available to patients and ensure dietary adherence to the prescribed course of dietary management. These patients can be exposed to artificial sweeteners from the combination of free and prescribed foods. Young children have a higher risk of exceeding acceptable daily intakes (ADI) for additives than adults due to higher food intakes per kg body weight...
August 7, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28776179/frequency-and-nature-of-medication-errors-and-adverse-drug-events-in-mental-health-hospitals-a-systematic-review
#7
REVIEW
Ghadah H Alshehri, Richard N Keers, Darren M Ashcroft
INTRODUCTION: Little is known about the frequency and nature of medication errors (MEs) and adverse drug events (ADEs) that occur in mental health hospitals. OBJECTIVES: This systematic review aims to provide an up-to-date and critical appraisal of the epidemiology and nature of MEs and ADEs in this setting. METHOD: Ten electronic databases were searched, including MEDLINE, Embase, CINAHL, International Pharmaceutical Abstracts, PsycINFO, Scopus, British Nursing Index, ASSIA, Web of Science, and Cochrane Database of Systematic Reviews (1999 to October 2016)...
August 3, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28774324/congenital-cystic-adenomatoid-malformation-dangers-of-misdiagnosis-a-case-report
#8
Wafae El Amraoui, Aziza Bentalha, Hajar Hamri, Salma Es-Chrif El Kettani, Alae El Koraichi
BACKGROUND: Congenital cystic adenomatoid malformation is a rare pulmonary malformation, but is the most common lung malformation observed in children. In developing countries, such as Morocco, prenatal diagnosis is missing. Congenital cystic adenomatoid malformation may occur after birth in the presence of complications and needs a computed tomography scan for confirmation. However, our lack of awareness of this malformation has been responsible for a late and wrong diagnosis along with therapeutic errors...
August 4, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28765104/a-technological-innovation-to-reduce-prescribing-errors-based-on-implementation-intentions-the-acceptability-and-feasibility-of-myprescribe
#9
Chris Keyworth, Jo Hart, Hong Thoong, Jane Ferguson, Mary Tully
BACKGROUND: Although prescribing of medication in hospitals is rarely an error-free process, prescribers receive little feedback on their mistakes and ways to change future practices. Audit and feedback interventions may be an effective approach to modifying the clinical practice of health professionals, but these may pose logistical challenges when used in hospitals. Moreover, such interventions are often labor intensive. Consequently, there is a need to develop effective and innovative interventions to overcome these challenges and to improve the delivery of feedback on prescribing...
August 1, 2017: JMIR Human Factors
https://www.readbyqxmd.com/read/28759396/pictograms-units-and-dosing-tools-and-parent-medication-errors-a-randomized-study
#10
H Shonna Yin, Ruth M Parker, Lee M Sanders, Alan Mendelsohn, Benard P Dreyer, Stacy Cooper Bailey, Deesha A Patel, Jessica J Jimenez, Kwang-Youn A Kim, Kara Jacobson, Michelle C J Smith, Laurie Hedlund, Nicole Meyers, Terri McFadden, Michael S Wolf
BACKGROUND AND OBJECTIVES: Poorly designed labels and dosing tools contribute to dosing errors. We examined the degree to which errors could be reduced with pictographic diagrams, milliliter-only units, and provision of tools more closely matched to prescribed volumes. METHODS: This study involved a randomized controlled experiment in 3 pediatric clinics. English- and Spanish-speaking parents (n = 491) of children ≤8 years old were randomly assigned to 1 of 4 groups and given labels and dosing tools that varied in label instruction format (text and pictogram, or text only) and units (milliliter-only ["mL"] or milliliter/teaspoon ["mL/tsp"])...
July 2017: Pediatrics
https://www.readbyqxmd.com/read/28755403/monitoring-deep-inspiration-breath-hold-for-left-sided-localized-breast-cancer-radiotherapy-with-an-in-house-developed-laser-distance-meter-system
#11
Christer A Jensen, Tatiana Abramova, Jomar Frengen, Jo-Åsmund Lund
Deep inspiration breath hold (DIBH) in left-sided breast cancer radiotherapy is a technique to reduce cardiac and pulmonary doses while maintaining target coverage. This study aims at evaluating an in-house developed DIBH system. Free-breathing (FB) and DIBH plans were generated for 22 left-sided localized breast cancer patients who had radiation therapy (RT) after breast-conserving surgery. All patients were treated utilizing an in-house laser distance measuring system. 50 Gy was prescribed, and parameters of interest were target coverage, left anterior descending coronary artery, (LAD) and heart doses...
July 29, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28754812/outpatient-cpoe-orders-discontinued-due-to-erroneous-entry-prospective-survey-of-prescribers-explanations-for-errors
#12
Thu-Trang T Hickman, Arbor Jessica Lauren Quist, Alejandra Salazar, Mary G Amato, Adam Wright, Lynn A Volk, David W Bates, Gordon Schiff
BACKGROUND: Computerised prescriber order entry (CPOE) systems users often discontinue medications because the initial order was erroneous. OBJECTIVE: To elucidate error types by querying prescribers about their reasons for discontinuing outpatient medication orders that they had self-identified as erroneous. METHODS: During a nearly 3 year retrospective data collection period, we identified 57 972 drugs discontinued with the reason 'Error (erroneous entry)...
July 28, 2017: BMJ Quality & Safety
https://www.readbyqxmd.com/read/28745923/prevalence-prevention-and-severity-of-prescribing-errors-in-different-years-of-residency-training-at-an-oncology-ward
#13
Amanda Canato Ferracini, Cinthia Madeira de Souza, Aline Teotonio Rodrigues, Patricia Moriel, Sophie F M Derchain, Priscila Gava Mazzola
No abstract text is available yet for this article.
July 1, 2017: American Journal of Medical Quality: the Official Journal of the American College of Medical Quality
https://www.readbyqxmd.com/read/28745210/variability-in-threshold-for-medication-error-reporting-between-physicians-nurses-pharmacists-and-families
#14
Patricia Keefer, Kelley Kidwell, Candace Lengyel, Kavita Warrier, Deborah Wagner
BACKGROUND: Voluntary medication error reporting is an imperfect resource used to improve the quality of medication administration. It requires judgment by front-line staff to determine how to report enough to identify opportunities to improve patient safety but not jeopardize that safety by creating a culture of "report fatigue." OBJECTIVE: This study aims to provide information on interpretability of medication error and the variability between subgroups of caregivers in the hospital setting...
July 24, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28742772/medication-errors-in-pediatric-anesthesia-a-report-from-the-wake-up-safe-quality-improvement-initiative
#15
Lauren M Y Lobaugh, Lizabeth D Martin, Laura E Schleelein, Donald C Tyler, Ronald S Litman
BACKGROUND: Wake Up Safe is a quality improvement initiative of the Society for Pediatric Anesthesia that contains a deidentified registry of serious adverse events occurring in pediatric anesthesia. The aim of this study was to describe and characterize reported medication errors to find common patterns amenable to preventative strategies. METHODS: In September 2016, we analyzed approximately 6 years' worth of medication error events reported to Wake Up Safe. Medication errors were classified by: (1) medication category; (2) error type by phase of administration: prescribing, preparation, or administration; (3) bolus or infusion error; (4) provider type and level of training; (5) harm as defined by the National Coordinating Council for Medication Error Reporting and Prevention; and (6) perceived preventability...
July 24, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28742051/cooperative-tracking-of-networked-agents-with-a-high-dimensional-leader-qualitative-analysis-and-performance-evaluation
#16
Guanghui Wen, Tingwen Huang, Wenwu Yu, Yuanqing Xia, Zhi-Wei Liu
Cooperative consensus tracking and its L²-gain performance is investigated in this paper for a class of multiple agent systems (MASs) in the presence of a single high-dimensional leader. Compared with the traditional models for MASs, the inherent dynamics of the leader are allowed to be different with those of the followers in the present framework, which is thus much more favorable in various practical applications. A new kind of distributed controllers associated with a reduced-order state observer are designed for each follower to track the high-dimensional leader under directed switching topology...
July 21, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28735884/from-drop-shape-analysis-to-stress-fitting-elastometry
#17
REVIEW
Mathias Nagel, Theo A Tervoort, Jan Vermant
Drop-shape analysis using pendant or sessile drops is a well-established experimental technique for measuring the interfacial or surface tension, and changes thereof. The method relies on deforming a drop by either gravity or buoyancy and fitting the Young-Laplace equation to the drop shape. Alternatively one can prescribe the shape and measure the pressure inside the drop or bubble using pressure tensiometry. However, when an interface with a complex microstructure is present, extra and anisotropic interfacial stresses may develop due to lateral interactions between the surface-active moieties, leading to deviations of the drop shape or even a wrinkling of the interface...
July 13, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28732829/budesonide%C3%A2-%C3%A2-formoterol-delivered-via-spiromax-%C3%A2-for-the-management-of-asthma-and-copd-the-potential-impact-on-unscheduled-healthcare-costs-of-improving-inhalation-technique-compared-with-turbuhaler-%C3%A2
#18
A Lewis, S Torvinen, P N R Dekhuijzen, H Chrystyn, A Melani, Y Zöllner, K Kolbe, A T Watson, M Blackney, A Plich
BACKGROUND: Fixed-dose combinations of inhaled corticosteroids and long-acting β2 agonists are commonly used for the treatment of asthma and COPD. However, the most frequently prescribed dry powder inhaler delivering this medicine - Symbicort(®) (budesonide and formoterol, BF) Turbuhaler(®) - is associated with poor inhalation technique, which can lead to poor disease control and high disease management costs. A recent study showed that patients make fewer inhaler errors when using the novel DuoResp(®) (BF) Spiromax(®) inhaler, compared with BF Turbuhaler(®)...
August 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28726170/prescribing-trends-in-a-glaucoma-clinic-and-adherence-to-egs-guidelines-a-retrospective-non-interventional-single-center-uk-study
#19
Mark Fajgenbaum, Ejaz Ansari
INTRODUCTION: The purpose of this study was to determine prescribing trends in a specialist glaucoma clinic in the UK. Specifically, the aims were to determine which drugs were prescribed as first-, second-, and third-line treatment, the persistence of first-, second-, and third-line treatment regimens, and the proportion of treatment decisions conforming to the European Glaucoma Society (EGS) guidelines. METHODS: A retrospective, non-interventional, single-center, case-note review was performed on a cohort of consecutive patients presenting to a specialist glaucoma clinic for follow-up...
July 19, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28722562/centers-of-excellence-in-healthcare-institutions-what-they-are-and-how-to-assemble-them
#20
James K Elrod, John L Fortenberry
BACKGROUND: Centers of excellence-specialized programs within healthcare institutions which supply exceptionally high concentrations of expertise and related resources centered on particular medical areas and delivered in a comprehensive, interdisciplinary fashion-afford many advantages for healthcare providers and the populations they serve. To achieve full value from centers of excellence, proper assembly is an absolute necessity, but guidance is somewhat limited. This effectively forces healthcare providers to pursue establishment largely via trial-and-error, diminishing opportunities for success...
July 11, 2017: BMC Health Services Research
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