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https://www.readbyqxmd.com/read/29775092/a-prospective-multi-centre-us-clinical-trial-to-determine-accuracy-of-febridx-point-of-care-testing-for-acute-upper-respiratory-infections-with-and-without-a-confirmed-fever
#1
Nathan I Shapiro, Wesley H Self, Jeffrey Rosen, Stephan C Sharp, Michael R Filbin, Peter C Hou, Amisha D Parekh, Michael C Kurz, Robert Sambursky
BACKGROUND: FebriDx is a 10-minute disposable point-of-care test designed to identify clinically significant systemic host immune responses and aid in the differentiation of bacterial and viral respiratory infection by simultaneously detecting C-reactive protein (CRP) and myxovirus resistance protein A (MxA) from a fingerstick blood sample. FebriDx diagnostic accuracy was evaluated in the emergency room and urgent care setting. METHODS: A prospective, multicentre, observational cohort study of acute upper respiratory tract infections (URIs), with and without a confirmed fever at the time of enrolment, was performed to evaluate the diagnostic accuracy of FebriDx to identify clinically significant bacterial infection with host response and acute pathogenic viral infection...
May 18, 2018: Annals of Medicine
https://www.readbyqxmd.com/read/29774420/lysophosphatidylcholine-as-a-predictor-of-postoperative-complications-after-colorectal-cancer-surgery
#2
Akihisa Matsuda, Marina Yamada, Satoshi Matsumoto, Nobuyuki Sakurazawa, Takeshi Yamada, Takeshi Matsutani, Masao Miyashita, Eiji Uchida
PURPOSE: Lysophosphatidylcholine (LPC), which is generated from phosphatidylcholine (PC) and metabolized by autotaxin (ATX), modulates immune responses via its anti-inflammatory property. We investigated the association between LPC and postoperative complications (POCs) after colorectal cancer surgery (CRC). METHODS: The subjects of this study were 43 patients who underwent surgery for CRC. Peripheral blood samples were collected preoperatively and immediately after surgery, and on postoperative days (PODs) 1, 3, 5, and 7...
May 17, 2018: Surgery Today
https://www.readbyqxmd.com/read/29771869/performance-of-the-atlas-rapid-test-for-chlamydia-trachomatis-and-women-s-attitudes-toward-point-of-care-testing
#3
Lea E Widdice, Yu-Hsiang Hsieh, Barbara Silver, Mathilda Barnes, Perry Barnes, Charlotte A Gaydos
PURPOSE: This study compared performance of Atlas io® diagnostic platform, a point-of-care (POC) PCR assay for Chlamydia trachomatis (CT), to Aptima Combo 2, a standard of care laboratory-based nucleic acid amplification assay (NAAT), and evaluated patient attitudes toward POC testing. METHODS: Women ≥14 years undergoing CT screening/testing were recruited from an urban adolescent primary care practice (Teen Health Center, THC) and a sexually transmitted disease (STD) clinic...
May 1, 2018: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/29770813/nanomaterial-based-devices-for-point-of-care-diagnostic-applications
#4
Daniel Quesada-González, Arben Merkoçi
In this review, we have discussed the capabilities of nanomaterials for point-of-care (PoC) diagnostics and explained how these materials can help to strengthen, miniaturize and improve the quality of diagnostic devices. Since the optical, electrochemical and other physical properties of nanomaterials are dictated by their composition, size and shape, these factors are critical in the design and function of nanomaterial-based PoC diagnostics.
May 17, 2018: Chemical Society Reviews
https://www.readbyqxmd.com/read/29768244/harmonization-activities-of-noklus-a-quality-improvement-organization-for-point-of-care-laboratory-examinations
#5
Anne Stavelin, Sverre Sandberg
Noklus is a non-profit quality improvement organization that focuses to improve all elements in the total testing process. The aim is to ensure that all medical laboratory examinations are ordered, performed and interpreted correctly and in accordance with the patients' needs for investigation, treatment and follow-up. For 25 years, Noklus has focused on point-of-care (POC) testing in primary healthcare laboratories and has more than 3100 voluntary participants. The Noklus quality system uses different tools to obtain harmonization and improvement: (1) external quality assessment for the pre-examination, examination and postexamination phase to monitor the harmonization process and to identify areas that need improvement and harmonization, (2) manufacturer-independent evaluations of the analytical quality and user-friendliness of POC instruments and (3) close interactions and follow-up of the participants through site visits, courses, training and guidance...
May 16, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29768103/efficacy-of-recombinase-polymerase-amplification-to-diagnose-trypanosoma-cruzi-infection-in-dogs-with-cardiac-alterations-from-an-endemic-area-of-mexico
#6
Matilde Jimenez-Coello, Thomas Shelite, Alejandro Castellanos-Gonzalez, Omar Saldarriaga, Rocio Rivero, Antonio Ortega-Pacheco, Carlos Acevedo-Arcique, Karla Amaya-Guardia, Nisha Garg, Peter Melby, Bruno L Travi
Chagas disease is a lingering Public Health problem in Latin America with ∼5.7 million people infected with Trypanosoma cruzi. Transmission is still taking place in most countries of the Americas, including the United States. Dogs are frequently infected with T. cruzi and its high infection prevalence is associated with increased risk of Chagas disease in humans. The city of Mérida in the Yucatan peninsula is endemic for Chagas disease and canines are frequently infected with T. cruzi. The objective of this study was to evaluate the performance of a qualitative point of care (POC) molecular test (RPA-LF, recombinase polymerase amplification-lateral flow) developed in our laboratory for identifying infected dogs...
May 16, 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29761701/semi-quantitative-nucleic-acid-test-with-simultaneous-isotachophoretic-extraction-and-amplification
#7
Andrew T Bender, Mark D Borysiak, Amanda M Levenson, Lorraine Lillis, David S Boyle, Jonathan D Posner
Nucleic acid amplification tests (NAATs) provide high diagnostic accuracy for infectious diseases and quantitative results for monitoring viral infections. The majority of NAATs require complex equipment, cold chain dependent reagents, and skilled technicians to perform tests. This largely confines NAATs to centralized laboratories and can significantly delay appropriate patient care. Low-cost, point-of-care (POC) NAATs are especially needed in low-resource settings to provide patients with diagnosis and treatment planning in a single visit to improve patient care...
May 15, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29761633/verification-of-the-qlabs-international-normalized-ratio-point-of-care-device-for-monitoring-of-patients-attending-an-anticoagulation-clinic
#8
N Mbokota, E Schapkaitz, S Louw
INTRODUCTION: In the developing world, point-of-care (POC) testing for international normalized ratio (INR) plays an important role in the monitoring of patients on long-term warfarin therapy with limited access to healthcare ensuring safe and effective anticoagulation. A newly developed POC device for INR measurement by healthcare workers is the handheld qLabs POC device® (Micropoint Biotechnologies Incorporated, Guangdong, China). METHODS: The qLabs POC device® was evaluated in 262 patients attending an anticoagulation clinic with regards to accuracy and precision of the INR results...
May 14, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29760113/impact-of-sea-ice-melt-on-dimethyl-sulfide-sulfoniopropionate-inventories-in-surface-waters-of-marguerite-bay-west-antarctic-peninsula
#9
Jacqueline Stefels, Maria A van Leeuwe, Elizabeth M Jones, Michael P Meredith, Hugh J Venables, Alison L Webb, Sian F Henley
The Southern Ocean is a hotspot of the climate-relevant organic sulfur compound dimethyl sulfide (DMS). Spatial and temporal variability in DMS concentration is higher than in any other oceanic region, especially in the marginal ice zone. During a one-week expedition across the continental shelf of the West Antarctic Peninsula (WAP), from the shelf break into Marguerite Bay, in January 2015, spatial heterogeneity of DMS and its precursor dimethyl sulfoniopropionate (DMSP) was studied and linked with environmental conditions, including sea-ice melt events...
June 28, 2018: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29757616/rapid-solid-phase-microextraction-of-dna-from-mycobacteria-in-artificial-sputum-samples-enables-visual-detection-using-isothermal-amplification
#10
Marcelino Varona, Xiong Ding, Kevin D Clark, Jared L Anderson
Point-of-care (POC) technologies for the detection of pathogens in clinical samples are highly valued due to their speed, ease of use, and cost-effectiveness. Furthermore, they are ideally suited for resource-limited settings where expensive and sophisticated laboratory equipment may not be readily available. In this study, a rapid method based on solid-phase microextraction of mycobacterial DNA with subsequent isothermal amplification and visual detection was developed. Direct coupling of the SPME desorption solution (1 M NaCl) to the isothermal reaction system was achieved to circumvent dilution steps and improve detection limits...
May 14, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29755211/microfluidic-diatomite-analytical-devices-for-illicit-drug-sensing-with-ppb-level-sensitivity
#11
Xianming Kong, Xinyuan Chong, Kenny Squire, Alan X Wang
The escalating research interests in porous media microfluidics, such as microfluidic paper-based analytical devices, have fostered a new spectrum of biomedical devices for point-of-care (POC) diagnosis and biosensing. In this paper, we report microfluidic diatomite analytical devices (μDADs), which consist of highly porous photonic crystal biosilica channels, as an innovative lab-on-a-chip platform to detect illicit drugs. The μDADs in this work are fabricated by spin-coating and tape-stripping diatomaceous earth on regular glass slides with cross section of 400×30µm2 ...
April 15, 2018: Sensors and Actuators. B, Chemical
https://www.readbyqxmd.com/read/29754790/aortic-clamping-strategy-and-postoperative-stroke
#12
Mohamad Alaeddine, Vinay Badhwar, Maria V Grau-Sepulveda, Lawrence M Wei, Chris C Cook, Michael E Halkos, Vinod H Thourani, Jeffrey P Jacobs, Roland Matsouaka, James Meza, Matthew Brennan, Thomas G Gleason, Danny Chu
OBJECTIVE: The effect of aortic clamping strategy on short-term stroke during proximal graft construction for coronary artery bypass grafting (CABG) remains undefined. The aim of this study was to test the hypothesis that partial occluding clamp (POC) technique does not increase incidence of postoperative stroke compared with single clamp (SC) technique for performing proximal coronary anastomoses. METHODS: We identified 52,611 patients who underwent on-pump CABG in the Society of Thoracic Surgeons Adult Cardiac Surgery Database from July 1, 2014 to March 31, 2015...
April 13, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29754458/integrating-point-of-care-testing-into-a-community-emergency-department-a-mixed-methods-evaluation
#13
Jesse M Pines, Mark S Zocchi, Caitlin Carter, Charles Z Marriott, Matthew Bernard, Leah H Warner
STUDY OBJECTIVE: Point-of-care testing (POCT) is a commonly used technology that hastens the time to laboratory results in emergency departments (ED). We evaluated an ED-based POCT program on ED length of stay and time to care, coupled with qualitative interviews of local ED stakeholders. METHODS: We conducted a mixed-methods study (2012-16) to examine the impact of point-of-care testing in a single, community ED. The quantiative analysis involved an observational before-after study comparing time to laboratory test result (POC troponin or POC chemistry) and ED length of stay after implementation of POCT, using a propensity-weighted interrupted time series analysis (ITSA)...
May 13, 2018: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/29754088/sampling-of-suspended-particulate-matter-using-particle-traps-in-the-rh%C3%A3-ne-river-relevance-and-representativeness-for-the-monitoring-of-contaminants
#14
M Masson, H Angot, C Le Bescond, M Launay, A Dabrin, C Miège, J Le Coz, M Coquery
Monitoring hydrophobic contaminants in surface freshwaters requires measuring contaminant concentrations in the particulate fraction (sediment or suspended particulate matter, SPM) of the water column. Particle traps (PTs) have been recently developed to sample SPM as cost-efficient, easy to operate and time-integrative tools. But the representativeness of SPM collected with PTs is not fully understood, notably in terms of grain size distribution and particulate organic carbon (POC) content, which could both skew particulate contaminant concentrations...
May 10, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29751798/clinic-flow-for-sti-hiv-and-tb-patients-in-an-urban-infectious-disease-clinic-offering-point-of-care-testing-services-in-durban-south-africa
#15
Katrina J Stime, Nigel Garrett, Yukteshwar Sookrajh, Jienchi Dorward, Ntuthu Dlamini, Ayo Olowolagba, Monisha Sharma, Ruanne V Barnabas, Paul K Drain
BACKGROUND: Many clinics in Southern Africa have long waiting times. The implementation of point-of-care (POC) tests to accelerate diagnosis and improve clinical management in resource-limited settings may improve or worsen clinic flow and waiting times. The objective of this study was to describe clinic flow with special emphasis on the impact of POC testing at a large urban public healthcare clinic in Durban, South Africa. METHODS: We used time and motion methods to directly observe patients and practitioners...
May 11, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29746301/effect-of-point-of-care-early-infant-diagnosis-on-antiretroviral-therapy-initiation-and-retention-of-patients-a-cluster-randomised-trial
#16
Ilesh V Jani, Bindiya Meggi, Osvaldo Loquiha, Ocean Tobaiwa, Chishamiso Mudenyanga, Alcina Zitha, Dadirayi Mutsaka, Nedio Mabunda, Adolfo Vubil, Timothy Bollinger, Lara Vojnov, Trevor F Peter
OBJECTIVE: We measured the effect of point-of-care early infant HIV testing on antiretroviral therapy initiation rates and retention in care among infants in Mozambique. DESIGN: A cluster-randomised trial was conducted in 16 primary health care centres providing either on-site point-of-care (POC arm; n = 8) or referred laboratory (SOC arm; n = 8) infant HIV testing. METHODS: The primary outcomes were the proportion of HIV-positive infants initiating antiretroviral therapy within 60 days of sample collection, and the proportion of HIV-positive infants who initiated antiretroviral therapy that were retained in care at 90 days of follow-up...
May 8, 2018: AIDS
https://www.readbyqxmd.com/read/29745237/association-between-progestin-only-contraceptive-use-and-cardiometabolic-outcomes-a-systematic-review-and-meta-analysis
#17
Marija Glisic, Sara Shahzad, Stergiani Tsoli, Mahmuda Chadni, Eralda Asllanaj, Lyda Z Rojas, Elizabeth Brown, Rajiv Chowdhury, Taulant Muka, Oscar H Franco
Aims The association between progestin-only contraceptive (POC) use and the risk of various cardiometabolic outcomes has rarely been studied. We performed a systematic review and meta-analysis to determine the impact of POC use on cardiometabolic outcomes including venous thromboembolism, myocardial infarction, stroke, hypertension and diabetes. Methods and results Nineteen observational studies (seven cohort and 12 case-control) were included in this systematic review. Of those, nine studies reported the risk of venous thromboembolism, six reported the risk of myocardial infarction, six reported the risk of stroke, three reported the risk of hypertension and two studies reported the risk of developing diabetes with POC use...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29744439/-in-vitro-cytocompatibility-evaluation-of-poly-octamethylene-citrate-monomers-toward-their-use-in-orthopedic-regenerative-engineering
#18
Chuying Ma, Ethan Gerhard, Qiaoling Lin, Silun Xia, April Dawn Armstrong, Jian Yang
Citrate based polymer poly(octamethylene citrate) (POC) has shown promise when formulated into composite material containing up to 65 wt% hydroxylapatite (HA) for orthopedic applications. Despite significant research into POC, insufficient information about the biocompatibility of the monomers 1,8-Octanediol and Citrate used in its synthesis is available. Herein, we investigated the acute cytotoxicity, immune response, and long-term functionality of both monomers. Our results showed a cell-type dependent cytotoxicity of the two monomers: 1,8-Octanediol induced less acute toxicity to 3T3 fibroblasts than Citrate while presenting comparable cytotoxicity to MG63 osteoblast-like cells; however, Citrate demonstrated enhanced compatibility with hMSCs compared to 1,8-Octanediol...
March 2018: Bioactive Materials
https://www.readbyqxmd.com/read/29740815/screening-for-dysglycaemia-in-dental-primary-care-practice-settings-systematic-review-of-the-evidence
#19
REVIEW
Ingrid Glurich, Barbara Bartkowiak, Richard L Berg, Amit Acharya
INTRODUCTION: Increasing prevalence of diabetes and periodontal disease is prompting identification of additional clinical settings to identify patients at risk for dysglycaemia. A systematic review of studies that have examined feasibility of screening for at-risk patients in general dentistry settings at point-of-care (POC) was undertaken. MATERIALS AND METHODS: Systematic review of pragmatic clinical field trials piloting POC screening for dysglycaemia risk in dental settings was undertaken in studies whose primary objective was to explore rates of dysglycaemia among undiagnosed patient populations...
May 8, 2018: International Dental Journal
https://www.readbyqxmd.com/read/29737065/-clinical-application-assessment-of-karyolite-bobs-combined-with-qf-pcr-in-the-detection-of-products-of-conception
#20
Hang Su, Hong-Mei Zhu, Ling-Ping Li, Ze Du, Yang Zeng, Ting Hu, Zhu Zhang, Shan-Ling Liu, He Wang
OBJECTIVE: To assess the accuracy and discuss the feasibility of KaryoLite bacterial artificial chromosome on beads (KL-BoBs) and quantitative fluorescent polymerase chain reaction (QF-PCR) in genetic testing of products of conception (POC) by comparing with the chromosomal microarray analysis (CMA) test results. METHODS: Eighty-one cases of abortion samples were collected in the prenatal diagnosis center of West China Second University Hospital in Sichuan University from May to August 2016,including 61 cases of placenta tissues,19 cases of fetal muscle tissues and 1 case of fetal liver tissue...
March 2018: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
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