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https://www.readbyqxmd.com/read/29444563/recent-update-on-coagulation-management-and-hemostatic-therapies-in-liver-transplantation
#1
Ezeldeen Abuelkasem, Kenichi A Tanaka, Raymond M Planinsic
Liver transplantation is an ever-evolving field and understanding coagulation management and hemostatic therapies is essential for good outcomes. In this review, we discuss current monitoring tools available in the operating room and the hemostatic agents available to control hemostasis. Multifactorial coagulation defects are discussed and point-of care monitoring is reviewed to guide selection of hemostatic agents when indicated.
February 14, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29433148/international-council-for-standardization-in-haematology-icsh-recommendations-for-laboratory-measurement-of-direct-oral-anticoagulants
#2
Robert C Gosselin, Dorothy M Adcock, Shannon M Bates, Jonathan Douxfils, Emmanuel J Favaloro, Isabelle Gouin-Thibault, Cecilia Guillermo, Yohko Kawai, Edelgard Lindhoff-Last, Steve Kitchen
This guidance document was prepared on behalf of the International Council for Standardization in Haematology (ICSH) for providing haemostasis-related guidance documents for clinical laboratories. This inaugural coagulation ICSH document was developed by an ad hoc committee, comprised of international clinical and laboratory direct acting oral anticoagulant (DOAC) experts. The committee developed consensus recommendations for laboratory measurement of DOACs (dabigatran, rivaroxaban, apixaban and edoxaban), which would be germane for laboratories assessing DOAC anticoagulation...
February 12, 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29430275/engineering-a-simple-lateral-flow-device-for-animal-blood-coagulation-monitoring
#3
Hua Li, Daewoo Han, Giovanni M Pauletti, Andrew J Steckl
Increasing numbers of animals are diagnosed with thromboembolism, requiring anticoagulation treatment to prevent thrombotic events. Frequent and periodic coagulation monitoring is critical to ensure treatment effectiveness and patient safety by limiting blood coagulation ability within the desired therapeutic range. Point-of-care diagnostics is an ideal candidate for frequent coagulation monitoring due to rapid test results and no need for laboratory setting. This article reports the first utilization of no-reaction lateral flow assay (nrLFA) device for simple and low-cost animal blood coagulation monitoring in resource-limited setting...
January 2018: Biomicrofluidics
https://www.readbyqxmd.com/read/29407620/point-of-care-testing-poct-to-assess-drug-concentration-in-patients-treated-with-non-vitamin-k-antagonist-oral-anticoagulants-noacs
#4
S Padayattil Jose, A Banzato, P Carraro, A Haleh, K Rossi, G Nante, G Denas, G Zoppellaro, V Pengo
BACKGROUND: Non-vitamin K antagonist oral anticoagulants (NOACs) do not need routine laboratory monitoring but measurement of drug concentration is important in emergency conditions. Specific laboratory tests are not readily available or not implemented in every hospital. Point-of-Care Tests (POCT) may bridge this gap and be used as a bedside solution. OBJECTIVES: Feasibility of POCT to assess plasma levels of dabigatran, rivaroxaban and apixaban. PATIENTS/METHODS: Activated Coagulation Time-Low Range (ACT - LR) using a portable Hemochron Signature Elite for dabigatran and prothrombin time (expressed as INR) by Coaguchek XS Pro for rivaroxaban and apixaban were obtained at trough and peak in 136 consecutive patients taking NOACs (70 on dabigatran, 45 on rivaroxaban and 20 on apixaban)...
January 30, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29395816/a-comparative-study-of-point-of-care-prothrombin-time-in-cardiopulmonary-bypass-surgery
#5
Shihoko Okabayashi, Satoru Ogawa, Kenichi A Tanaka, Takashi Nishiyama, Shusuke Takeshita, Yoshinobu Nakayama, Yasufumi Nakajima, Teiji Sawa, Toshiki Mizobe
OBJECTIVE: Point-of-care (POC) devices allow for prothrombin time/international normalized ratio (PT/INR) testing in whole blood (WB) and timely administration of plasma or prothrombin complex concentrate during cardiopulmonary bypass surgery. This study evaluated the sensitivities of a new POC PT test, a dry-hematology method with heparin neutralization technology (DRIHEMATO PT-S [DRI PT-S]; A&T Corporation, Kanagawa, Japan), and compared it with other POC tests currently available. DESIGN: Prospective, observational study...
December 29, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29363781/advanced-hemophilic-arthropathy-sensitivity-of-soft-tissue-discrimination-with-musculoskeletal-ultrasound
#6
Annette von Drygalski, Randy E Moore, Sonha Nguyen, Richard F W Barnes, Lena M Volland, Tudor H Hughes, Jiang Du, Eric Y Chang
OBJECTIVES: Point-of-care musculoskeletal ultrasound (US) is increasingly used by hemophilia providers to guide management; however, pathologic tissue differentiation with US is uncertain. We sought to determine the extent to which point-of-care musculoskeletal US can identify and discriminate pathologic soft tissue changes in hemophilic arthropathy. METHODS: Thirty-six adult patients with hemophilia A/B were prospectively enrolled. Point-of-care musculoskeletal US examinations were performed on arthropathic joints (16 knees, 10 ankles, and 10 elbows) using standard views by a musculoskeletal US-trained and certified hematologist, who recorded abnormal intra-articular soft tissue accumulation...
January 24, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29363269/measuring-fibrinolysis-from-research-to-routine-diagnostic-assays
#7
REVIEW
Colin Longstaff
Development and standardisation of fibrinolysis methods has progressed more slowly than coagulation testing and routine high throughput screening tests for fibrinolysis are still lacking. In laboratory research, a variety of approaches are available and are applied to understand the regulation of fibrinolysis and its contribution to the haemostatic balance. Fibrinolysis in normal blood is slow to develop. For practical purposes plasminogen activators can be added to clotting plasma; or euglobulin prepared to reduce endogenous inhibitors, but results are complicated by these manipulations...
January 24, 2018: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29359377/successful-management-of-obstetric-disseminated-intravascular-coagulation-using-a-portable-fibrinogen-measuring-device
#8
Rie Inoue, Hiroyuki Sumikura, Asako Kumagai, Noriko Kato, Shintaro Makino, Atsuo Itakura
The importance of fibrinogen replacement therapy in obstetric disseminated intravascular coagulation is well recognized. However, fibrinogen measurement in conventional laboratories has been a time-consuming task. Recently, a Japanese manufacturer developed a portable device that enables immediate fibrinogen measurement at the point of care. This report describes a case in which this device was used for the successful management of obstetric disseminated intravascular coagulation.
January 23, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29355793/position-of-the-french-working-group-on-perioperative-haemostasis-gihp-on-viscoelastic-tests-what-role-for-which-indication-in-bleeding-situations
#9
Stéphanie Roullet, Emmanuel de Maistre, Brigitte Ickx, Normand Blais, Sophie Susen, David Faraoni, Delphine Garrigue, Fanny Bonhomme, Anne Godier, Dominique Lasne
PURPOSE: Viscoelastic tests (VETs), thromboelastography (TEG®) and thromboelastometry (ROTEM®) are global tests of coagulation performed on whole blood. They evaluate the mechanical strength of a clot as it builds and develops after coagulation itself. The time required to obtain haemostasis results remains a major problem for clinicians dealing with bleeding, although some teams have developed a rapid laboratory response strategy. Indeed, the value of rapid point-of-care diagnostic devices such as VETs has increased over the years...
January 17, 2018: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/29329171/nonhuman-primate-rhesus-macaque-models-of-severe-pressure-targeted-hemorrhagic-and-polytraumatic-hemorrhagic-shock
#10
Forest R Sheppard, Antoni R Macko, Jacob J Glaser, Philip J Vernon, Alexander J Burdette, Ruth Madelaine Paredes, Craig A Koeller, Anthony E Pusateri, Douglas K Tadaki, Sylvain Cardin
BACKGROUND: We endeavored to develop clinically translatable nonhuman primate (NHP) models of severe polytraumatic hemorrhagic shock. METHODS: NHPs were randomized into five severe pressure-targeted hemorrhagic shock (PTHS) ± additional injuries scenarios: 30-min PTHS (PTHS-30), 60-min PTHS (PTHS-60), PTHS-60 + soft tissue injury (PTHS-60+ST), PTHS-60+ST + femur fracture (PTHS-60+ST+FF), and decompensated PTHS+ST+FF (PTHS-D). Physiologic parameters were recorded and blood samples collected at five time points with animal observation through T = 24 h...
February 2018: Shock
https://www.readbyqxmd.com/read/29318027/diagnostic-performances-of-two-rapid-tests-for-detection-of-feline-leukemia-virus-antigen-in-sera-of-experimentally-feline-leukemia-virus-infected-cats
#11
Matthew R Krecic, Sridhar Velineni, Patrick Meeus, Huihao Fan, Michael Loenser
Objectives: The objective of this study was to compare the diagnostic sensitivities and specificities of WITNESS FeLV-FIV (Zoetis) and SNAP FIV/FeLV Combo Test (IDEXX) for the detection of FeLV p27 antigen in the sera of experimentally feline leukemia virus (FeLV)-infected cats. Methods: Diagnostic sensitivities of WITNESS and SNAP were determined through testing of 47 serum samples collected from cats day 56 post-experimental infection with a virulent FeLV Rickard strain...
January 2018: JFMS Open Reports
https://www.readbyqxmd.com/read/29310686/comparison-of-two-different-coagulation-algorithms-on-the-use-of-allogenic-blood-products-and-coagulation-factors-in-severely-injured-trauma-patients-a-retrospective-multicentre-observational-study
#12
Alexander Kaserer, Mattias Casutt, Kai Sprengel, Burkhardt Seifert, Donat R Spahn, Philipp Stein
BACKGROUND: At the University Hospital Zurich (USZ) and the Cantonal Hospital of Lucerne (LUKS) an individualized goal-directed coagulation and transfusion algorithm was introduced and implemented before 2012 (Coagulation algorithm of the USZ: USZ-Alg; of the LUKS: LUKS-Alg). Main differences between both algorithms are: 1) A target haematocrit-range of 0.21-0.24 (USZ-Alg) vs. a lower haematocrit limit only (LUKS-Alg). 2) Blind coagulation-package in selected cases (LUKS-Alg only). 3) Factor XIII substitution is considered earlier according to the USZ-Alg...
January 8, 2018: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/29261592/whole-blood-and-hextend-bookends-of-modern-tactical-combat-casualty-care-field-resuscitation-and-starting-point-for-multi-functional-resuscitation-fluid-development
#13
Forest R Sheppard, Thomas A Mitchell, Antoni R Macko, Darren M Fryer, Leasha J Schaub, Kassandra M Ozuna, Jacob J Glaser
BACKGROUND: Hemorrhage is the leading cause of preventable death in traumatically injured civilian and military populations. Pre-hospital resuscitation largely relies on crystalloid and colloid intra-vascular expansion, as whole blood and component blood therapy are logistically arduous. In this experiment, we evaluated the bookends of Tactical Combat Casualty Care Guidelines recommendations of pre-hospital resuscitation with Hextend and whole blood in a controlled hemorrhagic shock model within non-human primates, as means of a multi-functional resuscitative fluid development...
December 20, 2017: Journal of Trauma and Acute Care Surgery
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
#14
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
#15
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...
January 2018: 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
#16
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
#17
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
#18
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
#19
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
#20
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
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