keyword
MENU ▼
Read by QxMD icon Read
search

point of care coagulation

keyword
https://www.readbyqxmd.com/read/29204476/data-documenting-the-performance-of-the-pt-inr-line-correction-method-for-reconciling-inr-discrepancies-between-central-laboratory-coagulation-analyzers-using-different-thromboplastins-during-the-evaluation-of-a-portable-coagulometer
#1
Wendy S Baker, Kathleen J Albright, Heidi Spratt, Megan Berman, Peggy A Mann, Jaime Unabia, John R Petersen
The data presented here was produced as part of an evaluation of the performance of the CoaguChek XS point-of-care coagulation analyzer, which is discussed in the research article "POCT PT INR - Is it adequate for Patient Care? A Comparison of the Roche Coaguchek XS vs. Stago Star vs. Siemens BCS in Patients Routinely Seen in an Anticoagulation Clinic" (Baker et al., in press) [1]. An effort to reconcile discrepancies in the patient INR result distributions from different central lab instruments (Stago Star and Siemens BCS) with the PT/INR line method is described (Poller et al...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29189637/strategies-for-prevention-and-management-of-bleeding-following-pediatric-cardiac-surgery-on-cardiopulmonary-bypass-a-scoping-review
#2
Kristina Siemens, Dilanee P Sangaran, Beverley J Hunt, Ian A Murdoch, Shane M Tibby
OBJECTIVE: We aimed to systematically describe, via a scoping review, the literature reporting strategies for prevention and management of mediastinal bleeding post pediatric cardiopulmonary bypass surgery. DATA SOURCES: MEDLINE, EMBASE, PubMed, and Cochrane CENTRAL Register. STUDY SELECTION: Two authors independently screened publications from 1980 to 2016 reporting the effect of therapeutic interventions on bleeding-related postoperative outcomes, including mediastinal drain loss, transfusion, chest re-exploration rate, and coagulation variables...
November 16, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29168733/single-shot-detection-of-neurotransmitters-in-whole-blood-samples-by-means-of-the-heat-transfer-method-in-combination-with-synthetic-receptors
#3
Thijs Vandenryt, Bart van Grinsven, Kasper Eersels, Peter Cornelis, Safira Kholwadia, Thomas J Cleij, Ronald Thoelen, Ward De Ceuninck, Marloes Peeters, Patrick Wagner
Serotonin is an important neurotransmitter that plays a major role in the pathogenesis of a variety of conditions, including psychiatric disorders. The detection of serotonin typically relies on high-performance liquid chromatography (HPLC), an expensive technique that requires sophisticated equipment and trained personnel, and is not suitable for point-of-care applications. In this contribution, we introduce a novel sensor platform that can measure spiked neurotransmitter concentrations in whole blood samples in a fast and low-cost manner by combining synthetic receptors with a thermal readout technique-the heat-transfer method...
November 23, 2017: Sensors
https://www.readbyqxmd.com/read/29127692/coagulation-measurement-from-whole-blood-using-vibrating-optical-fiber-in-a-disposable-cartridge
#4
Yusuf Samet Yaraş, Ali Bars Gündüz, Gökhan Sağlam, Selim Ölçer, Fehmi Civitçi, İbrahim Baris, Göksenin Yaralioğlu, Hakan Urey
In clinics, blood coagulation time measurements are performed using mechanical measurements with blood plasma. Such measurements are challenging to do in a lab-on-a-chip (LoC) system using a small volume of whole blood. Existing LoC systems use indirect measurement principles employing optical or electrochemical methods. We developed an LoC system using mechanical measurements with a small volume of whole blood without requiring sample preparation. The measurement is performed in a microfluidic channel where two fibers are placed inline with a small gap in between...
November 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29125171/nanomechanical-clinical-coagulation-diagnostics-and-monitoring-of-therapies
#5
Francesco Padovani, James Duffy, Martin Hegner
Clinical coagulation diagnostics often requires multiple tests. Coagulation times are a first indication of an abnormal coagulation process, such as a coagulation factor deficiency. To determine the specific deficient factor, additional immuno- and/or enzyme assays are necessary. Currently, every clinical laboratory has to normalize their assays (international normalized ratio, INR), and therefore, certain variability within the clinical analytics exists. We report a novel strategy for a quick, reliable and quantitative diagnosis of blood coagulation diseases (e...
November 23, 2017: Nanoscale
https://www.readbyqxmd.com/read/29076371/ammonia-concentrations-in-canine-whole-blood-edta-anticoagulated-whole-blood-and-plasma-measured-by-use-of-a-point-of-care-ammonia-meter
#6
Adesola Odunayo, Karen M Tobias, Chika C Okafor, Bente Flatland
OBJECTIVE To investigate the use of canine whole blood (WB) for measurement of ammonia concentration by use of a point-of-care ammonia meter and to compare results of measuring ammonia concentrations in WB, EDTA-anticoagulated WB, and plasma. ANIMALS 40 client-owned dogs. PROCEDURES A blood sample (2 mL) was obtained from each dog. One drop of WB was immediately applied to a test strip for evaluation with an ammonia meter. The remainder of the blood sample was placed in an EDTA-containing tube, and 1 drop of EDTA-anticoagulated WB was applied to a test strip...
November 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/29055918/rotational-thromboelastometry-or-conventional-coagulation-tests-in-liver-transplantation-comparing-blood-loss-transfusions-and-cost
#7
Laura Smart, Khalid Mumtaz, Danielle Scharpf, Nicole O'Bleness Gray, Daniel Traetow, Sylvester Black, Anthony J Michaels, Elmahdi Elkhammas, Robert Kirkpatrick, A James Hanje
INTRODUCTION: Orthotopic liver transplantation (OLT) can be associated with significant bleeding requiring multiple blood product transfusions. Rotational thromboelastometry (ROTEM) is a point-of-care device that has been used to monitor coagulation during OLT. Whether it reduces blood loss/transfusions during OLT remains controversial. MATERIALS AND METHODS: We aim to compare ROTEM with conventional coagulation tests (aPTT, PT, INR, platelet count, fibrinogen) to guide transfusion of platelets, cryoprecipitate, and fresh frozen plasma (FFP) during OLT over 3 years...
October 16, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29025378/transfusion-related-acute-lung-injury-trali-and-transfusion-associated-circulatory-overload-taco-in-liver-transplantation-a-case-report-and-focused-review
#8
Natalie K Smith, Sang Kim, Bryan Hill, Andrew Goldberg, Samuel DeMaria, Jeron Zerillo
Liver transplantation (LT) is a complex procedure in a patient with multi-organ system dysfunction and coagulation defects. The surgical procedure involves dissection, major vessel manipulation, and pathophysiologic effects of graft storage and reperfusion. As a result, LT frequently involves significant hemorrhage. Subsequent massive transfusion carries high risk of transfusion-associated complications. Transfusion-related acute lung injury (TRALI) and transfusion-associated circulatory overload (TACO) are the leading causes of transfusion associated mortality...
October 1, 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28980758/impact-of-four-direct-oral-anticoagulants-on-rotational-thromboelastometry-rotem
#9
L Seyve, C Richarme, B Polack, R Marlu
INTRODUCTION: Rotational Thromboelastometry (ROTEM) is a point of care method used to monitor coagulation during surgery and to guide transfusion strategies in patients presenting with severe bleeding. The aim of our study was to determine the impact of four direct oral anticoagulants (DOACs) on 3 commonly used ROTEM tests. METHODS: Whole blood samples from 20 healthy donors were spiked in vitro with apixaban, edoxaban, rivaroxaban or dabigatran at 5 different plasma concentrations (0-1000 ng/mL)...
October 5, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28969328/viscoelastometry-guided-fresh-frozen-plasma-infusion-for-postpartum-haemorrhage-obs2-an-observational-study
#10
P W Collins, R Cannings-John, D Bruynseels, S Mallaiah, J Dick, C Elton, A Weeks, J Sanders, N Aawar, J Townson, K Hood, J Hall, K Harding, R Gauntlett, R Collis
Background: Postpartum haemorrhage (PPH) can be exacerbated by haemostatic failure. Based on data from trauma studies, empirical infusions of fresh frozen plasma (FFP) are often given during severe PPH if coagulation tests are unavailable. This study observed a cohort of women with moderate/severe PPH in whom FFP infusion was guided by the use of viscoelastometric point-of-care testing (VE-POCT) and clinical assessment. Methods: Women were enrolled into this observational study when blood loss was measured or suspected to be about 1000 mL...
September 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28963294/new-criteria-for-sepsis-induced-coagulopathy-sic-following-the-revised-sepsis-definition-a-retrospective-analysis-of-a-nationwide-survey
#11
Toshiaki Iba, Marcello Di Nisio, Jerrold H Levy, Naoya Kitamura, Jecko Thachil
OBJECTIVE: Recent clinical studies have shown that anticoagulant therapy might be effective only in specific at-risk subgroups of patients with sepsis and coagulation dysfunction. The definition of sepsis was recently modified, and as such, old scoring systems may no longer be appropriate for the diagnosis of sepsis-associated coagulopathy. The aim of this study was to evaluate prognostic factors in patients diagnosed with sepsis and coagulopathy according to the new sepsis definition and assess their accuracy in comparison with existing models...
September 27, 2017: BMJ Open
https://www.readbyqxmd.com/read/28922264/validation-of-a-portable-coagulometer-for-routine-in-hospital-use-for-newborns
#12
Antonio E Jerez Calero, Dolores Fernández Jiménez, Manuel Molina Oya, Eduardo Narbona López, José Uberos Fernández
OBJECTIVES: To verify the reliability and clinical benefits of the coagulation tests made by a point of care device in newborn admitted to a neonatal unit. DESIGN: We made a statistical comparison between results obtained by the point of care device versus conventional laboratory analysis. SETTING: Level 3 neonatal unit. PATIENTS: Thirty-one infants admitted to the neonatal unit at the San Cecilio University Hospital (Granada, Spain) were recruited to this study...
September 15, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28920906/clotchip-a-microfluidic-dielectric-sensor-for-point-of-care-assessment-of-hemostasis
#13
Debnath Maji, Michael A Suster, Erdem Kucukal, Ujjal D S Sekhon, Anirban Sen Gupta, Umut A Gurkan, Evi X Stavrou, Pedram Mohseni
This paper describes the design, fabrication, and testing of a microfluidic sensor for dielectric spectroscopy of human whole blood during coagulation. The sensor, termed ClotChip, employs a three-dimensional, parallel-plate, capacitive sensing structure with a floating electrode integrated into a microfluidic channel. Interfaced with an impedance analyzer, the ClotChip measures the complex relative dielectric permittivity, ϵ Tr, of human whole blood in the frequency range of 40 Hz to 100 MHz. The temporal variation in the real part of the blood dielectric permittivity at 1 MHz features a time to reach a permittivity peak, Tpeak, as well as a maximum change in permittivity after the peak, ∆εr,max, as two distinct parameters of ClotChip readout...
September 12, 2017: IEEE Transactions on Biomedical Circuits and Systems
https://www.readbyqxmd.com/read/28844370/technology-is-there-sufficient-evidence-to-change-practice-in-point-of-care-management-of-coagulopathy
#14
REVIEW
Michael Fabbro, Anne M Winkler, Jerrold H Levy
Currently, hemostasis is one of the most widely researched topics in perioperative medicine. As investigators learn more about the complexity of coagulation, developing tests with the ability to rapidly monitor coagulation and guide targeted therapy is the key to optimizing hemostasis management. There is mounting evidence that algorithmic transfusion using point-of-care (POC) testing can reduce red cell and platelet transfusions and major bleeding after cardiac surgery. Integrating these tests during cardiac surgery and trauma management is especially important because these groups use the most blood products within a health system and the risks of transfusion are well documented...
October 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28835607/clinical-evaluation-of-whole-blood-prothrombin-time-pt-and-international-normalized-ratio-inr-using-a-laser-speckle-rheology-sensor
#15
Markandey M Tripathi, Satoru Egawa, Alexandra G Wirth, Diane M Tshikudi, Elizabeth M Van Cott, Seemantini K Nadkarni
Prothrombin time (PT) and the associated international normalized ratio (INR) are routinely tested to assess the risk of bleeding or thrombosis and to monitor response to anticoagulant therapy in patients. To measure PT/INR, conventional coagulation testing (CCT) is performed, which is time-consuming and requires the separation of cellular components from whole blood. Here, we report on a portable and battery-operated optical sensor that can rapidly quantify PT/INR within seconds by measuring alterations in the viscoelastic properties of a drop of whole blood following activation of coagulation with thromboplastin...
August 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28798852/flow-reproducibility-of-whole-blood-and-other-bodily-fluids-in-simplified-no-reaction-lateral-flow-assay-devices
#16
H Li, D Han, M A Hegener, G M Pauletti, A J Steckl
The "no reaction" lateral flow assay (nrLFA) uses a simplified LFA structure with no conjugate pad and no stored reagents. In the nrLFA, the capillary-based transport time or distance is the key indicator, rather than the outcome of a biochemical reaction. Hence, the calibration and reproducibility of the nrLFA device are critical. The capillary flow properties of several membrane types (nitrocellulose, nylon, cellulose acetate, polyethersulfone, and polyvinylidene difluoride) are evaluated. Flow rate evaluations of MilliporeSigma Hi-Flow™ Plus (HF075, HF135 and HF180) nitrocellulose membranes on nrLFA are performed using bodily fluids (whole blood, blood plasma, and artificial sweat)...
March 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28771571/optical-sensing-of-anticoagulation-status-towards-point-of-care-coagulation-testing
#17
Diane M Tshikudi, Markandey M Tripathi, Zeinab Hajjarian, Elizabeth M Van Cott, Seemantini K Nadkarni
Anticoagulant overdose is associated with major bleeding complications. Rapid coagulation sensing may ensure safe and accurate anticoagulant dosing and reduce bleeding risk. Here, we report the novel use of Laser Speckle Rheology (LSR) for measuring anticoagulation and haemodilution status in whole blood. In the LSR approach, blood from 12 patients and 4 swine was placed in disposable cartridges and time-varying intensity fluctuations of laser speckle patterns were measured to quantify the viscoelastic modulus during clotting...
2017: PloS One
https://www.readbyqxmd.com/read/28758562/thromboelastrography-teg-is-still-relevant-in-the-21st-century-as-a-point-of-care-test-for-monitoring-coagulation-status-in-the-cardiac-surgical-suite
#18
Antonio Hernandez Conte, Deena Perotti, Lauren Farac
Since their introduction into clinical practice in the early 1960s, viscoelastic point-of-care (POC) testing-thromboelastrography (TEG) and thromboelastrometry (ROTEM)-has become increasingly popular in intensive care units, operating rooms, and emergency room settings. As TEG has been an established POC viscoelastic testing modality for many years, there has been more research and analysis of its utility and ability to reduce transfusions in the general, cardiac, and liver surgical sectors compared with ROTEM...
September 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28758557/thromboelastometry-versus-rotational-thromboelastography-in-cardiac-surgery
#19
Ahmed Zaky
Evidence exists on the morbiduty and mortality associated with both massive blood loss and transfusion in cardiac surgical patients. Monitoring of the vesicoelastic properties of blood using rotational thromboelastometry and thromboelsatography (TEG) has been a major step towards ameliorating the risks associated with these 2 evils by providing trageted goal-directed blood product resuscitation. Point of care ROTEM and TEG overcome many of the current limitatons of conventional laboratory coagulation testing...
September 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28754139/evidence-of-altered-haemostasis-in-an-ovine-model-of-venovenous-extracorporeal-membrane-oxygenation-support
#20
Margaret R Passmore, Yoke L Fung, Gabriela Simonova, Samuel R Foley, Sara D Diab, Kimble R Dunster, Michelle M Spanevello, Charles I McDonald, John-Paul Tung, Natalie M Pecheniuk, Karen Hay, Kiran Shekar, John F Fraser
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) is a life-saving modality used in the management of cardiopulmonary failure that is refractory to conventional medical and surgical therapies. The major problems clinicians face are bleeding and clotting, which can occur simultaneously. To discern the impact of pulmonary injury and ECMO on the host's haemostatic response, we developed an ovine model of smoke-induced acute lung injury (S-ALI) and ECMO. The aims of this study were to determine if the ECMO circuit itself altered haemostasis and if this was augmented in a host with pulmonary injury...
July 29, 2017: Critical Care: the Official Journal of the Critical Care Forum
keyword
keyword
58287
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"