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Quality assurance

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https://www.readbyqxmd.com/read/28806320/the-value-of-quality-assured-magnetic-resonance-imaging-of-the-breast-for-the-early-detection-of-breast-cancer-in-asymptomatic-women
#1
Uwe Fischer, Susanne Luftner-Nagel, Friedemann Baum, Katharina Marten-Engelke, Susanne Wienbeck
PURPOSE: The aim of this study was to evaluate the exclusive performance of quality-assured high-resolution breast magnetic resonance imaging (MRI) for early detection of breast cancer in a population of asymptomatic women. MATERIALS AND METHODS: A total of 1189 MRI examinations performed in 789 asymptomatic women (mean age, 51.1 years) were evaluated. All examinations were performed using open bilateral surface coil, dedicated compression device, and high spatial resolution (matrix, 512 × 512)...
August 12, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28806185/graft-quality-verification-in-coronary-artery-bypass-graft-surgery-how-when-and-why
#2
Teresa M Kieser
PURPOSE OF REVIEW: The coronary artery bypass graft (CABG) operation is one of the few remaining operations/interventions on diseased arteries that are not routinely verified during or immediately after the procedure. This review answers the 'how', 'when' and 'why' of intraoperative CABG assessment. RECENT FINDINGS: More recent than new literature on this topic, is the increased interest in quality assurance of CABG. This is most likely due to reports in the last 5 years suggesting CABG superiority to percutaneous coronary intervention (PCI) for improved mid-term and long-term outcomes; for example, for patients with diabetes mellitus (Freedom Trial by Farkouh in 2012), and for patients with SYNTAX score ≥ 33 (SYNTAX Trial by Mohr in 2013)...
August 12, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28805472/network-experiences-from-a-cross-sector-biosafety-level-3-laboratory-collaboration-a-swedish-forum-for-biopreparedness-diagnostics
#3
Johanna Thelaus, Anna Lindberg, Susanne Thisted Lambertz, Mona Byström, Mats Forsman, Hans Lindmark, Rickard Knutsson, Viveca Båverud, Andreas Bråve, Pontus Jureen, Annelie Lundin Zumpe, Öjar Melefors
The Swedish Forum for Biopreparedness Diagnostics (FBD) is a network that fosters collaboration among the 4 agencies with responsibility for the laboratory diagnostics of high-consequence pathogens, covering animal health and feed safety, food safety, public health and biodefense, and security. The aim of the network is to strengthen capabilities and capacities for diagnostics at the national biosafety level-3 (BSL-3) laboratories to improve Sweden's biopreparedness, in line with recommendations from the EU and WHO...
August 14, 2017: Health Security
https://www.readbyqxmd.com/read/28804862/oncological-patients-in-the-intensive-care-unit-prognosis-decision-making-therapies-and-end-of-life-care
#4
Ewelina Biskup, Fengfeng Cai, Marcus Vetter, Stephan Marsch
The effectiveness of intensive care unit (ICU) care for cancer patients remains controversial. Advances in antitumour and supportive care led to major improvements in outcomes of oncological patients in the ICU. Improved cancer therapies and supportive management of organ dysfunctions have contributed to improved survival rates. As a consequence, the number of cancer patients requiring ICU admission is rising. Frequently, cancer patients have a poor performance status and are vulnerable. It is a heterogeneous population, where the nature and curability of the neoplasm and the severity of critical illness cause a plethora of issues about ICU admissions...
August 14, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28804854/post-analytical-issues-in-hemostasis-and-thrombosis-testing
#5
Emmanuel J Favaloro, Giuseppe Lippi
Analytical concerns within hemostasis and thrombosis testing are continuously decreasing. This is essentially attributable to modern instrumentation, improvements in test performance and reliability, as well as the application of appropriate internal quality control and external quality assurance measures. Pre-analytical issues are also being dealt with in some newer instrumentation, which are able to detect hemolysis, icteria and lipemia, and, in some cases, other issues related to sample collection such as tube under-filling...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804582/how-do-patients-perceive-and-expect-quality-of-surgery-diagnostics-and-emergency-services-in-tertiary-care-hospitals-an-evidence-of-gap-analysis-from-pakistan
#6
Iram Fatima, Ayesha Humayun, Muhammad Imran Anwar, Adil Iftikhar, Muhammad Aslam, Muhammad Shafiq
OBJECTIVES: Service quality is one of the important gears to appraise services and determine the gray areas that need improvement. In countries with a resource-poor health system, the first step of measuring quality is yet to be taken. This study seeks to inform policy makers in developing contextual service quality models by identifying service quality gaps in tertiary care teaching hospitals using patients' perspective. METHODS: A cross-sectional study was performed using multistage cluster sampling, and a modified version of the SERVQUAL (SERV-service, QUAL-quality) instrument was administered to determine patient's expectations and perceptions...
July 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/28802950/application-of-dye-analysis-in-forensic-fibre-and-textile-examination-case-examples
#7
Tom G Schotman, Xiaoma Xu, Nicole Rodewijk, Jaap van der Weerd
Seven cases and a quality assurance test are presented. In these cases, fibres or textiles submitted for investigation were analysed by HPLC-DAD-MS to identify the dyes present. The cases presented illustrate that it is possible to identify textile dyes in fibre traces recovered for forensic analysis. The results show that a mixture of dyes is present in all textiles investigated, except one sample that was taken from a manufacturer dye shade card. It is concluded that dye analyses improves the evidential value of forensic fibre examinations, as it becomes possible to distinguish textiles that are different in dye chemistry, but have a similar colour...
July 31, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28801763/a-situational-analysis-of-breast-cancer-early-detection-services-in-trinidad-and-tobago
#8
Kimberly Badal, Fidel Rampersad, Wayne A Warner, Adetunji T Toriola, Hamish Mohammed, Harold-Alexis Scheffel, Rehanna Ali, Murrie Moosoodeen, Siva Konduru, Adaila Russel, Rajini Haraksingh
PURPOSE: A situational analysis of breast cancer (BC) early detection services was carried out to investigate whether Trinidad and Tobago (T&T) has the framework for successful organized national screening. METHODS: An online survey was designed to assess the availability, accessibility, quality control and assurance (QC&A), and monitoring and evaluation (M&E) mechanisms for public and private BC early detection. A focus group with local radiologists (n = 3) was held to identify unaddressed challenges and make recommendations for improvement...
August 11, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28801485/identifying-discordance-between-senior-physicians-and-trainees-on-the-root-cause-of-ed-revisits
#9
Michael P Goldman, Michael C Monuteaux, Catherine Perron, Richard G Bachur
OBJECTIVE: Analysis of 72-hour ED revisits is a common emergency medicine quality assurance (QA) practice. Our aim was to compare the perceived root cause for 72-hour ED revisits between senior physicians (attendings) and trainees. We proposed that discordance in perception of why the revisit occurred would guide improvements in 72-hour revisits QA and elucidate innovative educational opportunities. METHODS: Questionnaire-based observational study conducted in an urban academic paediatric ED...
August 11, 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28800527/quantification-of-concentrated-chinese-medicine-granules-by-quantitative-polymerase-chain-reaction
#10
Yat-Tung Lo, Pang-Chui Shaw
Determination of the amount of constituent in a multi-herb product is important for quality control. In concentrated Chinese medicine granules (CCMG), no dregs are left after dissolution of the CCMG. This study is the first to examine the feasibility of using quantitative polymerase chain reaction (qPCR) to find the amount of CCMG in solution form. DNA was extracted from Hirudo and Zaocys CCMG mixed at different ratios and amplified in qPCR using species-specific primers. The threshold cycle (CT) obtained was compared with the respective standard curves...
July 31, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28800287/measuring-and-establishing-the-accuracy-and-reproducibility-of-3d-printed-medical-models
#11
Elizabeth George, Peter Liacouras, Frank J Rybicki, Dimitrios Mitsouras
Despite the rapid growth of three-dimensional (3D) printing applications in medicine, the accuracy and reproducibility of 3D printed medical models have not been thoroughly investigated. Although current technologies enable 3D models to be created with accuracy within the limits of clinical imaging spatial resolutions, this is not always achieved in practice. Inaccuracies are due to errors that occur during the imaging, segmentation, postprocessing, and 3D printing steps. Radiologists' understanding of the factors that influence 3D printed model accuracy and the metrics used to measure this accuracy is key in directing appropriate practices and establishing reference standards and validation procedures...
August 11, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28799854/proteomic-studies-in-the-discovery-of-cerebrospinal-fluid-biomarkers-for-amyotrophic-lateral-sclerosis
#12
Peggy Barschke, Patrick Oeckl, Petra Steinacker, Albert Ludolph, Markus Otto
Amyotrophic lateral sclerosis (ALS) is a progressive degenerative motor neuron disease, which usually leads to death within a few years. The diagnosis is mainly based on clinical symptoms and there is a need for ALS-specific biomarkers to make an early and precise diagnosis, for development of disease-modifying drugs and to gain new insights into pathophysiology. Areas covered: In the present review, we summarize studies using mass spectrometric (MS) approaches to identify protein alterations in the cerebrospinal fluid (CSF) of ALS patients...
August 14, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28799800/creation-of-university-wellness-program-healthy-eating-and-active-lifestyle-supports-a-knowledge-to-action-process
#13
Phillip Joy, Linda Mann, Karen Blotnicky
With the burdens that preventable health conditions place on individuals, workplaces, and society, workplace wellness programs (WWP) are critical to ensuring employees have access to health promotion supports tailored to their work environments. Such programs are best guided by a knowledge-to-action (KTA) framework; a theoretically grounded, systematic process that considers the ongoing exchange of knowledge with employees to engage them in health behaviour change and to garner employers' support for the interventions...
August 11, 2017: Canadian Journal of Dietetic Practice and Research
https://www.readbyqxmd.com/read/28799273/sensitivity-of-array-detector-measurements-in-determining-shifts-of-mlc-leaf-positions
#14
Qingyang Shang, Andrew Godley, Long Huang, Peng Qi, Ping Xia
Using a MatriXX 2D ionization chamber array, we evaluated the detection sensitivity of systematically introduced MLC leaf positioning shifts to test whether the conventional IMRT QA method can be used for quality assurance of an MLC tracking algorithm. Because of finite special resolution, we first tested whether the detection sensitivity was dependent of the locations of leaf shifts and positions of ionization chambers. We then introduced the same systematic leaf shifts in two clinical intensity modulated radiotherapy plans (prostate and head and neck cancer)...
August 11, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28799052/edxrf-as-an-alternative-method-for-multielement-analysis-of-tropical-soils-and-sediments
#15
Zahily Herrero Fernández, José Araújo Dos Santos Júnior, Romilton Dos Santos Amaral, Juan Reinaldo Estevez Alvarez, Edvane Borges da Silva, Elvis Joacir De França, Rômulo Simões Cezar Menezes, Emerson Emiliano Gualberto de Farias, Josineide Marques do Nascimento Santos
The quality assessment of tropical soils and sediments is still under discussion, with efforts being made on the part of governmental agencies to establish reference values. Energy dispersive X-ray fluorescence (EDXRF) is a potential analytical technique for quantifying diverse chemical elements in geological material without chemical treatment, primarily when it is performed at an appropriate metrological level. In this work, analytical curves were obtained by means of the analysis of geological reference materials (RMs), which allowed for the researchers to draw a comparison among the sources of analytical uncertainty...
August 10, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28798018/morbidity-and-mortality-and-beyond-assuring-quality-in-cardiac-catheterization-laboratory-quality-programs
#16
EDITORIAL
Charles E Chambers
No abstract text is available yet for this article.
August 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28797849/the-international-association-for-hospice-and-palliative-care-iahpc-advancing-hospice-and-palliative-care-worldwide
#17
Liliana De Lima, Lukas Radbruch
The International Association for Hospice and Palliative Care (IAHPC) is a membership based organization dedicated to the development and improvement of hospice and palliative care worldwide. The mission of IAHPC is to improve the quality of life of adults and children with life-threatening conditions and their families. The vision of IAHPC is universal access to high-quality palliative care, integrated into all levels of healthcare systems in a continuum of care with disease prevention, early diagnosis and treatment, to assure that any patient's or family caregiver's suffering is relieved to the greatest extent possible...
August 7, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28797319/baseline-assessment-of-25-hydroxyvitamin-d-reference-material-and-proficiency-testing-external-quality-assurance-material-commutability-a-vitamin-d-standardization-program-study
#18
Karen Phinney, Christopher Sempos, Susan Tai, Johanna Camara, Stephen Wise, John Eckfeldt, Andrew Hoofnagle, Graham Carter, Julia Jones, Gary Myers, Ramon Durazo-Arvizu, W Greg Miller, Lorin Bachmann, Ian Young, Juanita Pettit, Andrew Liu, Stephen Brooks, Kurtis Sarafin, Michael Thamm, Gert Mensink, Markus Busch, Martina Rabenberg, Kevin Cashman, Mairead Kiely, Karen Galvin, Joy Zhang, Michael Kinsella, Kyungwon Oh, Sun-Wha Lee, Chae Jung, Lorna Cox, Gail Goldberg, Kate Guberg, Sarah Meadows, Ann Prentice, Lu Tian, Patsy Brannon, Robyn Lucas, Peter Crump, Etienne Cavalier, Joyce Merkel, Joseph Betz, Grahame Caldwell
The Vitamin D Standardization Program (VDSP) coordinated a study in 2012 to assess the commutability of reference materials and proficiency testing/external quality assurance materials for total 25-hydroxyvitamin D [25(OH)D] in human serum, the primary indicator of vitamin D status. A set of 50 single-donor serum samples as well as 17 reference and proficiency testing/external quality assessment materials were analyzed by participating laboratories that used either immunoassay or LC-MS methods for total 25(OH)D...
August 10, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28796772/mortality-within-30-days-of-systemic-anticancer-therapy-at-a-tertiary-cancer-centre-assessing-the-safety-and-quality-of-clinical-care
#19
Michelle Wilson, Weng Mak, Melissa Firth, Sanjeev Deva, Michael Findlay
AIMS: Thirty-day mortality has been proposed to be a useful indicator of avoidable harm to patients from systemic anticancer therapies (SACT). As a quality assurance tool, we assessed the 30-day mortality rate at Auckland City Hospital and compared this with international standards. METHODS: Clinical characteristics and treatment details of medical oncology patients who died within 30 days of SACT from October 2014-September 2015 were collected and compared with data from a similar series performed from October 2008-September 2009...
August 11, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28796637/the-use-of-error-and-uncertainty-methods-in-the-medical-laboratory
#20
Wytze P Oosterhuis, Hassan Bayat, David Armbruster, Abdurrahman Coskun, Kathleen P Freeman, Anders Kallner, David Koch, Finlay Mackenzie, Gabriel Migliarino, Matthias Orth, Sverre Sandberg, Marit S Sylte, Sten Westgard, Elvar Theodorsson
Error methods - compared with uncertainty methods - offer simpler, more intuitive and practical procedures for calculating measurement uncertainty and conducting quality assurance in laboratory medicine. However, uncertainty methods are preferred in other fields of science as reflected by the guide to the expression of uncertainty in measurement. When laboratory results are used for supporting medical diagnoses, the total uncertainty consists only partially of analytical variation. Biological variation, pre- and postanalytical variation all need to be included...
August 10, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
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