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Point of care testing

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https://www.readbyqxmd.com/read/28530512/deaflympians-satisfaction-with-athletic-training-services-at-the-2013-deaflympic-summer-games
#1
Matthew Paul Brancaleone, René Revis Shingles, Nailya DeLellis
CONTEXT:   Athletic trainers have the opportunity to treat unique populations. Determining athletes' satisfaction with the athletic training services supplied can offer insights into how to improve the health care provided to athletes. OBJECTIVE:   To explore Deaflympians' satisfaction with athletic training services at the 2013 Deaflympic Summer Games. DESIGN:   Cross-sectional survey. SETTING:   The 2013 Deaflympic Summer Games in Sofia, Bulgaria...
May 22, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28530213/-the-model-of-perioperative-risk-assessment-in-elderly-patients-interim-analysis
#2
Izabela Grabowska, Lucyna Ścisło, Szymon Pietruszka, Elzbieta Walewska, Agata Paszko, Benita Siarkiewicz, Piotr Richter, Andrzej Budzyński, Antoni M Szczepanik
Demographic changes in contemporary society require implementation of proper perioperative care of elderly patients due to an increased risk of perioperative complications in this group. Preoperative assessment of health status identifies risks and enables preventive interventions, improving outcomes of surgical treatment. The Comprehensive Geriatric Assessment contains numerous diagnostic tests and consultations, which is expensive and difficult to use in everyday practice. The development of a simplified model of perioperative assessment of elderly patients will help identifying the group of patients who require further diagnostic workup...
April 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28529972/simple-and-versatile-detection-of-viruses-using-anodized-alumina-membranes
#3
Pavan Chaturvedi, Stacy D Rodriguez, Ivan Vlassiouk, Immo A Hansen, Sergei N Smirnov
A simple sensor for viral particles based on ionic conductivity through anodized alumina membranes was demonstrated using MS2 bacteriophage as an example. A facile two-point measuring scheme is geared toward realization using a computer's sound card input/output capabilities suitable for a fast and inexpensive point of care testing. The lowest detection concentration down to ~7 pfu/mL and a large dynamic range up to ~2000 pfu/mL were obtained due to physical optimization that included proper length and diameter for the pores, removing the oxide layer at the electrode, as well as the chemical optimization of covalent binding of antibodies to the pore's walls...
May 27, 2016: ACS Sensors
https://www.readbyqxmd.com/read/28529048/laboratory-based-performance-evaluation-of-pima-cd4-t-lymphocyte-count-point-of-care-by-lay-counselors-in-kenya
#4
Clement Zeh, Charles E Rose, Seth Inzaule, Mitesh A Desai, Fredrick Otieno, Felix Humwa, Benta Akoth, Paul Omolo, Robert T Chen, Yenew Kebede, Taraz Samandri
BACKGROUND: CD4+ T-lymphocyte count testing at the point-of-care (POC) may improve linkage to care of persons diagnosed with HIV-1 infection, but the accuracy of POC devices when operated by lay-counselors in the era of task-shifting is unknown. We examined the accuracy of Alere's Pima™ POC device on both capillary and venous blood when performed by lay-counselors and laboratory technicians. METHODS: In Phase I, we compared the perfomance of POC against FACSCalibur™ for 280 venous specimens by laboratory technicians...
May 18, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28528999/clinical-management-of-iron-deficiency-anemia-in-adults-systemic-review-on-advances-in-diagnosis-and-treatment
#5
REVIEW
Lucia De Franceschi, Achille Iolascon, Ali Taher, Maria Domenica Cappellini
Global burden disease studies point out that one of the top cause-specific anemias is iron deficiency (ID). Recent advances in knowledge of iron homeostasis have shown that fragile patients are a new target population in which the correction of ID might impact their morbidity, mortality and quality of life. We did a systematic review using specific search strategy, carried out the review of PubMed database, Cochrane Database of systemic reviews and international guidelines on diagnosis and clinical management of ID from 2010 to 2016...
May 18, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28527966/suture-dehiscence-in-the-tricuspid-annulus-an-ex%C3%A2-vivo-analysis-of-tissue-strength-and-composition
#6
Deborah M Paul, Ajay Naran, Eric L Pierce, Charles H Bloodworth, Steven F Bolling, Ajit P Yoganathan
BACKGROUND: Surgical repair of functional tricuspid regurgitation (FTR) is an increasingly common practice, but annuloplasty suture dehiscence remains a significant problem. Quantitative and mechanistic understanding of annular suture holding strength can support more effective techniques for tricuspid valve device anchoring. METHODS: Suture holding strength of ovine tricuspid annuli (n = 15) was quantified ex vivo by pullout testing at 12 positions around their circumference...
May 17, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28527886/immuno-pcr-a-new-technique-for-the-serodiagnosis-of-tuberculosis
#7
REVIEW
Promod K Mehta, Bhawna Dahiya, Suman Sharma, Netrapal Singh, Renu Dharra, Zoozeal Thakur, Neeru Mehta, Krishna B Gupta, Mahesh C Gupta, Dhruva Chaudhary
Rapid and accurate diagnosis of tuberculosis (TB) is essential to control the disease. The conventional microbiological tests have limitations and there is an urgent need to devise a simple, rapid and reliable point-of-care (POC) test. The failure of TB diagnostic tests based on antibody detection due to inconsistent and imprecise results has stimulated renewed interest in the development of rapid antigen detection methods. However, the World Health Organization (WHO) has emphasized to continue research for designing new antibody-based detection tests with improved accuracy...
May 17, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28526667/patient-centered-decision-support-formative-usability-evaluation-of-integrated-clinical-decision-support-with-a-patient-decision-aid-for-minor-head-injury-in-the-emergency-department
#8
Edward R Melnick, Erik P Hess, George Guo, Maggie Breslin, Kevin Lopez, Anthony J Pavlo, Fuad Abujarad, Seth M Powsner, Lori A Post
BACKGROUND: The Canadian Computed Tomography (CT) Head Rule, a clinical decision rule designed to safely reduce imaging in minor head injury, has been rigorously validated and implemented, and yet expected decreases in CT were unsuccessful. Recent work has identified empathic care as a key component in decreasing CT overuse. Health information technology can hinder the clinician-patient relationship. Patient-centered decision tools to support the clinician-patient relationship are needed to promote evidence-based decisions...
May 19, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28526661/the-parasol-protocol-an-implementation-science-study-of-hiv-continuum-of-care-interventions-for-gay-men-and-transgender-women-in-burma-myanmar
#9
Andrea L Wirtz, Soe Naing, Emily Clouse, Kaung Htet Thu, Sandra Hsu Hnin Mon, Zin Min Tun, Stefan Baral, Aung Zayar Paing, Chris Beyrer
BACKGROUND: Efforts to improve HIV diagnosis and antiretroviral therapy (ART) initiation among people living with HIV and reduce onward transmission of HIV rely on innovative interventions along multiple steps of the HIV care continuum. These innovative methods are particularly important for key populations, including men who have sex with men (MSM) and transgender women (TW). The HIV epidemic in Myanmar is concentrated among key populations, and national efforts now focus on reducing stigma and improving engagement of MSM and TW in HIV prevention and care...
May 17, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28526402/outpatient-antibiotic-stewardship-interventions-and-opportunities
#10
Erica L Dobson, Michael E Klepser, Jason M Pogue, Matthew J Labreche, Alex J Adams, Timothy P Gauthier, R Brigg Turner, Christy P Su, David M Jacobs, Katie J Suda
Improving the use of antibiotics across the continuum of care is a national priority. Data outlining the misuse of antibiotics in the outpatient setting justify the expansion of antibiotic stewardship programs (ASPs) into this health care setting; however, best practices for outpatient antibiotic stewardship (AS) are not yet defined. In a companion article, we focused on recommendations to overcome challenges related to the implementation of an outpatient ASP (e.g., building the AS team and defining program metrics)...
May 16, 2017: Journal of the American Pharmacists Association: JAPhA
https://www.readbyqxmd.com/read/28525851/a-fully-integrated-distance-readout-elisa-chip-for-point-of-care-testing-with-sample-in-answer-out-capability
#11
Dan Liu, Xingrui Li, Junkai Zhou, Shibo Liu, Tian Tian, Yanling Song, Zhi Zhu, Leiji Zhou, Tianhai Ji, Chaoyong Yang
Enzyme-linked immunosorbent assay (ELISA) is a popular laboratory technique for detection of disease-specific protein biomarkers with high specificity and sensitivity. However, ELISA requires labor-intensive and time-consuming procedures with skilled operators and spectroscopic instrumentation. Simplification of the procedures and miniaturization of the devices are crucial for ELISA-based point-of-care (POC) testing in resource-limited settings. Here, we present a fully integrated, instrument-free, low-cost and portable POC platform which integrates the process of ELISA and the distance readout into a single microfluidic chip...
May 4, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28524668/emerging-trends-in-micro-and-nanoscale-technologies-in-medicine-from-basic-discoveries-to-translation
#12
Mario M Alvarez, Joanna Aizenberg, Mostafa Analoui, Anne M Andrews, Gili Bisker, Edward S Boyden, Roger D Kamm, Jeffrey M Karp, David J Mooney, Rahmi Oklu, Dan Peer, Michelle Stolzoff, Michael S Strano, Grissel Trujillo-de Santiago, Thomas J Webster, Paul S Weiss, Ali Khademhosseini
We discuss the state of the art and innovative micro- and nanoscale technologies that are finding niches and opening up new opportunities in medicine, particularly in diagnostic and therapeutic applications. We take the design of point-of-care applications and the capture of circulating tumor cells as illustrative examples of the integration of micro- and nanotechnologies into solutions of diagnostic challenges. We describe several novel nanotechnologies that enable imaging cellular structures and molecular events...
May 19, 2017: ACS Nano
https://www.readbyqxmd.com/read/28522808/plasmonics-enhanced-smartphone-fluorescence-microscopy
#13
Qingshan Wei, Guillermo Acuna, Seungkyeum Kim, Carolin Vietz, Derek Tseng, Jongjae Chae, Daniel Shir, Wei Luo, Philip Tinnefeld, Aydogan Ozcan
Smartphone fluorescence microscopy has various applications in point-of-care (POC) testing and diagnostics, ranging from e.g., quantification of immunoassays, detection of microorganisms, to sensing of viruses. An important need in smartphone-based microscopy and sensing techniques is to improve the detection sensitivity to enable quantification of extremely low concentrations of target molecules. Here, we demonstrate a general strategy to enhance the detection sensitivity of a smartphone-based fluorescence microscope by using surface-enhanced fluorescence (SEF) created by a thin metal-film...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521828/markov-modeling-in-hepatitis-b-screening-and-linkage-to-care
#14
Martin A Sehr, Kartik D Joshi, John M Fontanesi, Robert J Wong, Robert R Bitmead, Robert G Gish
BACKGROUND: With up to 240 million people chronically infected with hepatitis B worldwide, including an estimated 2 million in the United States, widespread screening is needed to link the infected to care and decrease the possible consequences of untreated infection, including liver cancer, cirrhosis and death. Screening is currently fraught with challenges in both the developed and developing world. New point-of-care tests may have advantages over standard-of-care tests in terms of cost-effectiveness and linkage to care...
May 18, 2017: Theoretical Biology & Medical Modelling
https://www.readbyqxmd.com/read/28521601/significance-of-pregnancy-test-false-negative-results-due-to-elevated-levels-of-%C3%AE-core-fragment-hcg
#15
Sarah Johnson, Saji Eapen, Peter Smith, Graham Warren, Michael Zinaman
Very high levels of β-core fragment human chorionic gonadotrophin (βcf-hCG) are reported to potentially cause false negative results in point-of-care (POC)/over-the-counter (OTC) pregnancy tests. To investigate this further, women's daily early morning urine samples, collected prior to conception and during pregnancy, were analysed for intact, free β- and βcf-hCG. The proportion of βcf-hCG was found to be related to that of hCG produced and in circulation. Therefore, best practice for accuracy testing of POC/OTC pregnancy tests would be to test devices against clinical samples containing high levels of βcf-hCG as well as standards spiked with biologically relevant ratios...
May 19, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28520961/building-a-middle-range-theory-of-free-public-healthcare-seeking-in-sub-saharan-africa-a-realist-review
#16
Emilie Robert, Oumar Mallé Samb, Bruno Marchal, Valéry Ridde
Realist reviews are a new form of knowledge synthesis aimed at providing middle-range theories (MRTs) that specify how interventions work, for which populations, and under what circumstances. This approach opens the 'black box' of an intervention by showing how it triggers mechanisms in specific contexts to produce outcomes. We conducted a realist review of health user fee exemption policies (UFEPs) in sub-Saharan Africa (SSA). This article presents how we developed both the intervention theory (IT) of UFEPs and a MRT of free public healthcare seeking in SSA, building on Sen's capability approach...
May 16, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28520858/rapid-tests-for-influenza-respiratory-syncytial-virus-and-other-respiratory-viruses-a-systematic-review-and-meta-analysis
#17
Ahl Bruning, Mmg Leeflang, Jmbw Vos, R Spijker, M D de Jong, K C Wolthers, D Pajkrt
Rapid diagnosis of respiratory virus infections contributes to patient care. This systematic review evaluates the diagnostic accuracy of rapid tests for the detection of respiratory viruses. We searched Medline and EMBASE for studies evaluating these tests against PCR as reference standard. 179 studies were included of which 134 evaluated rapid tests for influenza viruses, 32 for RSV, and 13 for other respiratory viruses. We used the bivariate random effects model for quantitative meta-analysis of the results...
May 17, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28520780/towards-a-point-of-care-strip-test-to-diagnose-sickle-cell-anemia
#18
Meaghan Bond, Brady Hunt, Bailey Flynn, Petri Huhtinen, Russell Ware, Rebecca Richards-Kortum
A rapid test to identify patients with sickle cell disease could have important benefits in low-resource settings. Sickle cell anemia (SCA) affects about 300,000 newborns each year, the majority of whom are born in sub-Saharan Africa. Low-cost therapies are available to treat SCA, but most countries in sub-Saharan Africa lack robust neonatal screening programs needed to identify patients in need of treatment. To address this need, we developed and evaluated a competitive lateral flow assay that identifies patients with SCA (genotype HbSS) in 15 minutes using undiluted whole blood...
2017: PloS One
https://www.readbyqxmd.com/read/28520608/choroideremia
#19
Ioannis S Dimopoulos, Alina Radziwon, Chris D St Laurent, Ian M MacDonald
PURPOSE OF REVIEW: Although much has been written to define the phenotype and genotype of choroideremia (CHM), research continues to provide new insights that serve to better understand its pathogenesis and the directions for potential experimental therapies. RECENT FINDINGS: We would like to highlight new findings, expanding the type of disease-causing mutations to include mutations in the CHM promoter that will dramatically influence gene expression. Information derived from careful phenotyping of patients points increasingly to the central role of the retinal pigment epithelium as the key cell layer affected in the degenerative process...
May 17, 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28520580/high-agreement-between-benchtop-and-point-of-care-dipcard-tests-for-ethyl-glucuronide
#20
Emily Leickly, Jordan Skalisky, Sterling McPherson, Michael F Orr, Michael G McDonell
No abstract text is available yet for this article.
May 4, 2017: Therapeutic Drug Monitoring
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