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https://www.readbyqxmd.com/read/28918132/assessing-precision-bias-and-sigma-metrics-of-53-measurands-of-the-alinity-ci-system
#1
Sten Westgard, Victoria Petrides, Sharon Schneider, Marvin Berman, Jörg Herzogenrath, Anthony Orzechowski
Assay performance is dependent on the accuracy and precision of a given method. These attributes can be combined into an analytical Sigma-metric, providing a simple value for laboratorians to use in evaluating a test method's capability to meet its analytical quality requirements. Sigma-metrics were determined for 37 clinical chemistry assays, 13 immunoassays, and 3 ICT methods on the Alinity ci system. METHODS: Analytical Performance Specifications were defined for the assays, following a rationale of using CLIA goals first, then Ricos Desirable goals when CLIA did not regular the method, and then other sources if the Ricos Desirable goal was unrealistic...
September 13, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28913646/computational-investigation-of-the-microstructural-characteristics-and-physical-properties-of-glycerol-based-deep-eutectic-solvents
#2
Tayeb Aissaoui, Yacine Benguerba, Mohamed Khalid AlOmar, Inas M AlNashef
Recently, there has been significant interest in the possibility of using deep eutectic solvents (DESs) as novel green media and alternatives to conventional solvents and ionic liquids (ILs) in many applications. Due to their attractive properties, such as their biodegradability, low cost, easy preparation, and nontoxicity, DESs appear to be very promising solvents for use in the field of green chemistry. This computational study investigated six glycerol-based DESs: DES1 (glycerol:methyl triphenyl phosphonium bromide), DES2 (glycerol:benzyl triphenyl phosphonium chloride), DES3 (glycerol:allyl triphenyl phosphonium bromide), DES4 (glycerol:choline chloride), DES5 (glycerol:N,N-diethylethanolammonium chloride), and DES6 (glycerol:tetra-n-butylammonium bromide)...
September 14, 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28913487/perioperative-surgical-home-meeting-tomorrow-s-challenges
#3
REVIEW
Teodora O Nicolescu
New healthcare models pose a variety of changes for anesthesiologists, ranging from the need to improve quality and to cost containment: as such, the concept of Perioperative Surgical Home (PSH) has been developed. Modelled after the UK's Enhanced Recovery After Surgery (ERAS), PSH takes a step further by coordinating care starting from the time a surgical decision is made for the patient to as many as 30 days postoperatively, taking a logical evidenced-based approach to judicious preoperative testing. Perioperative surgical home also relies heavily on engineering imported strategies such as the use of Lean Six Sigma methodologies, and involves active participation of all stakeholders...
October 2016: Rom J Anaesth Intensive Care
https://www.readbyqxmd.com/read/28870178/using-total-quality-management-approach-to-improve-patient-safety-by-preventing-medication-error-incidences
#4
Nadin Yousef, Farah Yousef
BACKGROUND: Whereas one of the predominant causes of medication errors is a drug administration error, a previous study related to our investigations and reviews estimated that the incidences of medication errors constituted 6.7 out of 100 administrated medication doses. Therefore, we aimed by using six sigma approach to propose a way that reduces these errors to become less than 1 out of 100 administrated medication doses by improving healthcare professional education and clearer handwritten prescriptions...
September 4, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28856213/analytical-verification-and-quality-assessment-of-the-tosoh-hlc-723gx-hba1c-analyzer
#5
Marko Ris, Sandra Božičević, Vanja Radišić Biljak, Marijana Vučić Lovrenčić
OBJECTIVES: Ion-exchange high-performance liquid chromatography (IE-HPLC) has long been used as a reproducible and versatile analytical tool for HbA1c measurement. In this study, we performed analytical verification and quality assessment of the recently introduced small IE-HPLC Tosoh HLC-723GX HbA1c analyzer, and a comparison of results to immunoassay (IA) and capillary electrophoresis (CE). DESIGN AND METHODS: The total imprecision of Tosoh HLC-723GX was verified according to CLSI EP15-A2 protocol using commercial control materials (C-QC) and pooled human whole blood samples (HWB)...
April 2017: Pract Lab Med
https://www.readbyqxmd.com/read/28852353/management-of-painful-patellar-clunk-and-crepitance-results-at-a-mean-follow-up-of-five-years
#6
J Joseph Gholson, Devon D Goetz, Robert W Westermann, John Hart, John J Callaghan
INTRODUCTION: Painful patellar clunk and crepitance (PCC) is a known complication of total knee arthroplasty (TKA) with posterior-stabilized designs. Arthroscopic management of PCC has been proposed as a treatment option for PCC. METHODS: We reviewed all cases of PCC from a consecutive single-surgeon series using a specific posterior stabilized (PS) design treated with arthroscopy for PCC. In a series of 1,488 TKA cases, forty-six patients (3.1%) were identified to have clinical signs and symptoms of PCC during post-operative clinic follow-up...
2017: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/28828305/medical-and-scientific-writing-time-to-go-lean-and-mean
#7
REVIEW
Payal Bhardwaj, Sudip Sinha, Raj Kumar Yadav
The Lean Six Sigma methodology for process improvements and driving efficiency is old, but lean writing was adopted late by the pharmaceutical world in terms of size of the documents. The documents were lean earlier, and then became voluminous, and now we are about to complete a full circle in this regard, i.e., coming back to the lean documents again using e-formats and hyperlinking. Furthermore, writing has become more and more precise over time. The need for this lean and mean medical and scientific writing arose from voluminous research globally, both industry and academia which are abuzz with skyrocketing regulatory and scientific submission volumes...
July 2017: Perspectives in Clinical Research
https://www.readbyqxmd.com/read/28792792/the-effect-of-rgd-ngr-peptide-modification-of-melanoma-differentiation-associated-gene-7-interleukin-24-on-its-receptor-attachment-an-in-silico-analysis
#8
Samaneh Bina, Seyed Younes Hosseini, Fatemeh Shenavar, Ebrahim Hosseini, Mojtaba Mortazavi
Melanoma differentiation-associated gene-7 (mda-7/interleukin [IL]-24), a unique tumor suppressor gene, induces selective apoptosis in tumor cells. Secreted IL-24 binds to heterodimeric receptor complexes of IL-20R1/IL-20R2, IL-22R1/IL-20R2, or sigma-1 receptor (Sig1R) that consequently enhances apoptosis. However, this mechanism is not well understood and most likely involves different pathways. Targeting of cytokine by tumor homing peptides (THPs) to the tumor cell surface molecule-like integrin shows to be beneficial in gene immunotherapy approaches...
August 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28752089/the-use-of-operational-excellence-principles-in-a-university-hospital
#9
Eric R Edelman, Ankie E W Hamaekers, Wolfgang F Buhre, Godefridus G van Merode
The introduction of Operational Excellence in the Maastricht University Medical Center (MUMC+) has been the first of its kind and scale for a university hospital. The policy makers of the MUMC+ have combined different elements from various other business, management, and healthcare philosophies and frameworks into a unique mix. This paper summarizes the journey of developing this system and its most important aspects. Special attention is paid to the role of the operating rooms and the improvements that have taken place there, because of their central role in the working of the hospital...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28733188/assay-stability-the-missing-component-of-the-error-budget
#10
Mackay Mark, Hegedus Gabe, Badrick Tony
Gaining a better understanding of Quality Control (QC) processes is a key requirement to improving performance and reducing patient risk. Detecting analytical error is dependent on a QC strategy that reliably detects a critical shift in a result away from the true value. Recently the concept of Six Sigma has been used by diagnostic laboratories to assess the performance of assays and to assist in the selection of QC rules. The sigma metric is one measure of an assay's ability to perform within specification...
July 18, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28724497/a-redesign-approach-for-improving-animal-care-services-for-researchers
#11
Orighomisan Okpe, Jamison V Kovach
Because a research institution's animal care and use program oversees the provision of services specified in approved protocols designed by researchers, the effective provision of services within these programs is paramount to ensuring the humane care and treatment of research animals in accordance with federal, state, and local regulations and institutional policies. To improve the services provided to researchers through animal care and use programs, we investigated the relationship between the researchers who conduct these types of studies and the veterinary operations that provide care and treatment for research animals...
July 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28723845/lean-six-sigma-techniques-to-improve-ophthalmology-clinic-efficiency
#12
Thomas A Ciulla, Mohan V Tatikonda, Yehya A ElMaraghi, Rehan M Hussain, Amanda L Hill, Julie M Clary, Eyas Hattab
PURPOSE: Ophthalmologists serve an increasing volume of a growing elderly population undergoing increasingly complex outpatient medical care, including extensive diagnostic testing and treatment. The resulting prolonged patient visit times ("patient flow times") limit quality, patient and employee satisfaction, and represent waste. Lean Six Sigma process improvement was used in a vitreoretinal practice to decrease patient flow time, demonstrating that this approach can yield significant improvement in health care...
July 18, 2017: Retina
https://www.readbyqxmd.com/read/28714889/staphylococcus-aureus-regulator-sigma-b-is-important-to-develop-chronic-infections-in-hematogenous-murine-osteomyelitis-model
#13
Lorena Tuchscherr, Jennifer Geraci, Bettina Löffler
Staphylococcus aureus is a major pathogen causing bone infections that can become chronic and difficult to treat. Recently, we described the mechanism employed by S. aureus to switch to small colony variants (SCVs) and trigger intracellular bacterial persistence through the global stress regulator SigB. Here, we studied the role of SigB in the formation of chronic osteomyelitis. We used a murine hematogenous osteomyelitis model, where the mice were infected via the tail vein and subsequently developed chronic osteomyelitis...
July 15, 2017: Pathogens
https://www.readbyqxmd.com/read/28700608/the-ecf-sigma-factor-pspto_1043-in-pseudomonas-syringae-pv-tomato-dc3000-is-induced-by-oxidative-stress-and-regulates-genes-involved-in-oxidative-stress-response
#14
Bronwyn G Butcher, Zhongmeng Bao, Janet Wilson, Paul Stodghill, Bryan Swingle, Melanie Filiatrault, David Schneider, Samuel Cartinhour
The bacterial plant pathogen Pseudomonas syringae adapts to changes in the environment by modifying its gene expression profile. In many cases, the response is mediated by the activation of extracytoplasmic function (ECF) sigma factors that direct RNA polymerase to transcribe specific sets of genes. In this study we focus on PSPTO_1043, one of ten ECF sigma factors in P. syringae pv. tomato DC3000 (DC3000). PSPTO_1043, together with PSPTO_1042, encode an RpoERsp/ChrR-like sigma/anti-sigma factor pair. Although this gene pair is unique to the P...
2017: PloS One
https://www.readbyqxmd.com/read/28700244/targeted-yttrium-89-doxorubicin-drug-eluting-bead-a-safety-and-feasibility-pilot-study-in-a-rabbit-liver-cancer-model
#15
Johannes M Ludwig, Minzhi Xing, Yongkang Gai, Lingyi Sun, Dexing Zeng, Hyun S Kim
The purpose of this article is to evaluate feasibility and safety of the cancer targeting (radio)-chemoembolization drug-eluting bead (TRCE-DEB) concept drug SW43-DOX-L-NETA((89)Y) DEB for the intra-arterial treatment of VX2 rabbit liver tumors. The treatment compound comprises of the sigma-2 receptor ligand SW43 for cancer targeting, doxorubicin (DOX), and (89)yttrium ((89)Y) as nonradioactive surrogate for therapeutic (yttrium-90, lutetium-177) and imaging (yttrium-86) radioisotopes via the chelator L-NETA...
August 7, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28679887/telehealth-and-the-re-design-of-emergency-medical-services
#16
Richard W Jones, George Despotou, Theodoros N Arvanitis
As patient numbers continue to rise Emergency Department's (ED's) are struggling to not only control patient wait times but also to maintain the quality of patient care. Improving patient flow through the ED has been a priority for many years with techniques such as Lean Six-Sigma being implemented specifically to help alleviate the problem. The Institute for Healthcare Improvement recently stated that the best opportunities to improving patient flow relate to the front-end of the ED, namely triage. This contribution examines the use of Telehealth initiatives at the front-end of the ED, specifically tele-consultation, to reduce patient loading, provide timelier healthcare (with improved patient outcomes) and reduce costs...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28674608/experiences-with-lean-six-sigma-as-improvement-strategy-to-reduce-parenteral-medication-administration-errors-and-associated-potential-risk-of-harm
#17
Afke van de Plas, Mariëlle Slikkerveer, Saskia Hoen, Rick Schrijnemakers, Johanna Driessen, Frank de Vries, Patricia van den Bemt
In this controlled before-after study the effect of improvements, derived from Lean Six Sigma strategy, on parenteral medication administration errors and the potential risk of harm was determined. During baseline measurement, on control versus intervention ward, at least one administration error occurred in 14 (74%) and 6 (46%) administrations with potential risk of harm in 6 (32%) and 1 (8%) administrations. Most administration errors with high potential risk of harm occurred in bolus injections: 8 (57%) versus 2 (67%) bolus injections were injected too fast with a potential risk of harm in 6 (43%) and 1 (33%) bolus injections on control and intervention ward...
2017: BMJ Quality Improvement Reports
https://www.readbyqxmd.com/read/28649480/the-role-of-organizational-culture-in-operating-room-turnaround-time
#18
David Ninan, Janet Zhu, Amanda Kore, Elizabeth Wasson, Tricia Fullerton, Barbara Ninan
This analysis looks at the application of a robust process improvement methodology to achieve a sustained organizational change. The implementation took place in a safety net hospital's operating suites that had a problem with relatively long, nonproductive turnover times between surgical procedures. Organizational leadership empowered stakeholders to use Lean and Six-Sigma tools to develop more efficient organizational processes. These processes were then implemented in a phased approach with careful attention to the organization's culture...
May 17, 2017: Curēus
https://www.readbyqxmd.com/read/28635297/medical-students-leading-quality-improvement-a-lean-six-sigma-approach-to-pain-management
#19
David Droullard, Samuel Porter, Anna Zuckerman, Daphne Monie, Judi Brendle, Henry Weil
No abstract text is available yet for this article.
June 1, 2017: American Journal of Medical Quality: the Official Journal of the American College of Medical Quality
https://www.readbyqxmd.com/read/28619448/the-future-of-pharmaceutical-quality-and-the-path-to-get-there
#20
Lawrence X Yu, Michael Kopcha
While six sigma quality has long been achieved in other industries, it is rarely seen in the pharmaceutical sector. However, consumers and patients deserve six sigma quality pharmaceuticals with minimal risks of shortages or recalls. We propose that the future of pharmaceutical quality is six sigma, meaning that no more than 3.4 defects occur per million opportunities. We discuss the path to get there, including economic drivers, performance-based regulation, Quality by Design, advanced manufacturing technologies, and continuous improvement and operational excellence...
August 7, 2017: International Journal of Pharmaceutics
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