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citrate anticoagulation,

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https://www.readbyqxmd.com/read/28197045/experiences-with-continuous-venovenous-hemofiltration-using-18mmol-l-predilution-citrate-anticoagulation-and-a-phosphate-containing-replacement-solution
#1
Yuen Henry Jeffrey, Shum Hoi-Ping, Anne Leung Kit Hung, Lam Chung-Ling, Yan Wing-Wa, Lai King-Yiu
CONTEXT: Regional citrate anticoagulation for continuous renal replacement therapy is associated with a longer filter-life, less bleeding events and improved mortality. Problems associated with using Prismocitrate 10/2 solution in continuous renal replacement therapy, include hypomagnesemia, hypophosphatemia and the need for additional bicarbonate infusion. AIMS: This study uses the new Prismocitrate 18/0 solution for improved buffer balance and Phoxilium solution for a more favourable electrolyte profile...
January 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28193526/identification-of-the-blood-coagulation-factor-interacting-sequences-in-staphylococcal-superantigen-like-protein-10
#2
Saotomo Itoh, Takemasa Takii, Kikuo Onozaki, Tsutomu Tsuji, Shigeaki Hida
Staphylococcal superantigen-like proteins (SSLs) are a family of exoproteins of Staphylococcus aureus. We have shown that SSL10 binds to vitamin K-dependent coagulation factors and inhibits blood coagulation induced by recalcification of citrated plasma. SSL10 was revealed to bind to coagulation factors via their γ-carboxyglutamic acid (Gla) domain. In this study we attempted to identify the responsible sequence of SSL10 for the interaction with coagulation factors. We prepared a series of domain swap mutants between SSL10 and its paralog SSL7 that does not interact with coagulation factors, and examined their binding activity to immobilized prothrombin using ELISA-like binding assay...
February 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28180009/pseudothrombocytopenia-with-multiple-anticoagulant-sample-collection-tubes
#3
REVIEW
Ferenc Kovacs, Marina Varga, Zsolt Pataki, Erzsebet Rigo
The knowledge of pseudothrombocytopenia (PTCP) is important for the accuracy of a clinical assessment and for avoiding unnecessary treatment. An elderly patient was hospitalized with left lung pneumonia. Severe thrombocytopenia [platelet (PLT) number: 18 × 10(9)/L] without any clinical bleeding was found in ethylenediaminetetraacetic acid blood collection tube. PLT measurement was repeated in various anticoagulant [sodium citrate, lithium heparin, disodium oxalate, hirudin, and magnesium sulfate (Mg-sulfate)] sample collection tubes and all of them showed thrombocytopenia except with Mg-sulfate...
December 2016: Interventional Medicine & Applied Science
https://www.readbyqxmd.com/read/28176608/validation-of-commercial-elisas-for-quantifying-anabolic-growth-factors-and-cytokines-in-canine-acd-a-anticoagulated-plasma
#4
Kate Birdwhistell, Robert Basinger, Brian Hayes, Natalie Norton, David J Hurley, Samuel P Franklin
Platelet-rich plasma has been studied extensively in dogs, but validation of enzyme-linked immunosorbent assays (ELISAs) for quantifying anabolic growth factors and inflammatory cytokines in canine plasma prepared with citrate-based anticoagulants is not available. We performed a validation of commercial ELISAs for transforming growth factor-beta 1 (TGF-β1), platelet-derived growth factor-BB (PDGF-BB), vascular endothelial growth factor (VEGF), tumor necrosis factor-alpha (TNF-α), and interleukin-1 beta (IL-1β) for use with canine plasma prepared with acid-citrate-dextrose, solution A (ACD-A)...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28164647/ethylenediaminetetraacetic-acid-sodium-citrate-heparin-and-citrate-phosphate-dextrose-adenine-anticoagulants-differentially-affect-cytokine-mrna-expression-in-blood-leukocytes
#5
Eva Herzogova, Pavlina Dankova
BACKGROUND: The aim of this study is to determine whether and how the anticoagulant agents EDTA, sodium citrate, and heparin present in vacutainers and CPDA located in transfusion bags modify peripheral blood cell behavior. METHODS: We compared the effect of four anticoagulants within an expression study quantifying mRNA by realtime PCR in 60 blood samples. RESULTS: We observed a significant increase of TNFα and CCL2 mRNA expression in leukocytes placed in EDTA anticoagulant compared to leukocytes collected with citrate or heparin (p ≤ 0...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164512/critical-deviations-of-ionized-calcium-measurements-when-using-blood-gas-analyzers-to-monitor-citrate-dialysis
#6
Thorsten Feldkamp, Norbert Weiler, Michael Marx, Peter B Luppa, Ralf Junker
BACKGROUND: During the course of acute kidney injury (AKI) patients may require renal replacement therapy (RRT). The preferred therapeutic measure for such patients is continuous RRT (CRRT). Anticoagulation is required to prevent clotting of the extracorporeal circuit. The actual KDIGO guidelines recommend citrate as the first line anticoagulant. METHODS: Citrate dose infused into the extracorporeal circuit should achieve an extracorporeal calcium concentration of 0...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28151938/stability-of-circulating-blood-based-micrornas-pre-analytic-methodological-considerations
#7
Charlotte Glinge, Sebastian Clauss, Kim Boddum, Reza Jabbari, Javad Jabbari, Bjarke Risgaard, Philipp Tomsits, Bianca Hildebrand, Stefan Kääb, Reza Wakili, Thomas Jespersen, Jacob Tfelt-Hansen
BACKGROUND AND AIM: The potential of microRNAs (miRNA) as non-invasive diagnostic, prognostic, and predictive biomarkers, as well as therapeutic targets, has recently been recognized. Previous studies have highlighted the importance of consistency in the methodology used, but to our knowledge, no study has described the methodology of sample preparation and storage systematically with respect to miRNAs as blood biomarkers. The aim of this study was to investigate the stability of miRNAs in blood under various relevant clinical and research conditions: different collection tubes, storage at different temperatures, physical disturbance, as well as serial freeze-thaw cycles...
2017: PloS One
https://www.readbyqxmd.com/read/28150441/characterization-of-the-binding-of-a-glycosylated-serine-protease-from-euphorbia-cf-lactea-latex-to-human-fibrinogen
#8
Jaruwan Siritapetawee, Chutima Talabnin, Jarunee Vanichtanankul, Chomphunuch Songsiriritthigul, Kanjana Thumanu, Chun-Jung Chen, Nantarat Komanasin
In this study, the binding of a glycosylated serine protease (EuP-82) with human fibrinogen was investigated by the isothermal titration calorimetry (ITC). The ITC analysis indicated that the binding of EuP-82 to fibrinogen in the conditions with or without the activator (Ca(2+) ) was an exothermic reaction (dominant negative enthalpy), which tended to be driven by hydrogen bonding and van der Waals interactions. In contrast, the binding of fibrinogen-EuP-82 in the condition with the inhibitor (Zn(2+) ) was an unfavorable endothermic reaction...
February 1, 2017: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/28150319/factors-influencing-platelet-clumping-during-peripheral-blood-hematopoietic-stem-cell-collection
#9
Gagan Mathur, Sarah L Mott, Laura Collins, Gail A Nelson, C Michael Knudson, Annette J Schlueter
BACKGROUND: Platelet clumping is a common occurrence during peripheral blood hematopoietic stem cell (HSC) collection using the Spectra Optia mononuclear cell (MNC) protocol. If clumping persists, it may prevent continuation of the collection and interfere with proper MNC separation. This study is the first to report the incidence of clumping, identify precollection factors associated with platelet clumping, and describe the degree to which platelet clumping interferes with HSC product yield...
February 1, 2017: Transfusion
https://www.readbyqxmd.com/read/28138736/the-intensive-care-medicine-agenda-on-acute-kidney-injury
#10
REVIEW
Peter Pickkers, Marlies Ostermann, Michael Joannidis, Alexander Zarbock, Eric Hoste, Rinaldo Bellomo, John Prowle, Michael Darmon, Joseph V Bonventre, Lui Forni, Sean M Bagshaw, Miet Schetz
Acute kidney injury (AKI) is a common complication in the critically ill. Current standard of care mainly relies on identification of patients at risk, haemodynamic optimization, avoidance of nephrotoxicity and the use of renal replacement therapy (RRT) in established AKI. The detection of early biomarkers of renal tissue damage is a recent development that allows amending the late and insensitive diagnosis with current AKI criteria. Increasing evidence suggests that the consequences of an episode of AKI extend long beyond the acute hospitalization...
January 30, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28132944/identification-and-validation-of-a-factor-of-commutability-between-platelet-counts-performed-on-edta-and-citrate
#11
Pierre Dumont, Vincent Goussot, Alice David, Sarab Lizard, Jean-Marc Riedinger
The anticoagulant mostly employed for platelet count is EDTA. The Francophone Group of Cellular Hematology recommends checking of blood smear stained with May-Grünwald Giemsa any thrombocytopenia less than 100 G/L without medical history or whether an alarm is generated by the cell counter. The pseudo-thrombocytopenia (PTP) with EDTA is the best known artifact in platelet count. A sample of blood on citrated tube is necessary to get rid of the interference. The objective of this study was to compare the platelet counts obtained on EDTA (numEDTA) and citrate (numCTAD) tubes and to define, then validate a factor of conversion between both methods...
February 1, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/28118627/prostacyclin-as-an-anticoagulant-for-continuous-renal-replacement-therapy-in-children
#12
Akash Deep, Mohammad Zoha, Pompa Dutta Kukreja
Effective delivery of continuous renal replacement therapy (CRRT) depends on the longevity of the filter and circuit used in the CRRT machine. Safe and effective anticoagulation is crucial for maintaining the patency of these circuits. In children, heparin and citrate are the commonly used anticoagulants but they are limited by serious side effects and thus calls for meticulous monitoring. In conditions where neither of these can be used, prostacyclin can be an effective alternative. Prostacyclin is a platelet inhibitor that can be safely used as an efficient anticoagulant in CRRT...
January 25, 2017: Blood Purification
https://www.readbyqxmd.com/read/28110970/-plasma-exchange-in-nephrology-indications-and-technique
#13
Christophe Ridel, Sébastien Kissling, Laurent Mesnard, Alexandre Hertig, Éric Rondeau
Plasma exchange is a non-selective apheresis technique that can be performed by filtration or centrifugation allowing rapid purification of high molecular weight pathogens. An immunosuppressive treatment is generally associated to reduce the rebound effect of the purified substance. Substitution solutes such as human albumin and macromolecules are needed to compensate for plasma extraction. Compensation by viro-attenuated plasma is reserved solely for the treatment of thrombotic microangiopathies or when there is a risk of bleeding, because this product is very allergenic and expensive...
January 16, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/28110053/development-and-optimization-of-an-in-vitro-cultivation-protocol-allows-for-isolation-of-borrelia-miyamotoi-from-patients-with-hard-tick-borne-relapsing-fever
#14
Joris Koetsveld, Nadezhda M Kolyasnikova, Alex Wagemakers, Marina G Toporkova, Denis S Sarksyan, Anneke Oei, Alexander E Platonov, Joppe W Hovius
OBJECTIVES: Borrelia miyamotoi has been shown to infect humans in Eurasia and North America causing hard tick-borne relapsing fever (HTBRF). In vitro cultivation of B. miyamotoi was described recently; however, clinical isolation of relapsing fever Borrelia is cumbersome. Our aim was to develop a straightforward protocol enabling B. miyamotoi isolation directly from blood of patients. METHODS: MKP-F media, with or without anticoagulants, or blood from healthy human volunteers, was spiked with B...
January 18, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28073690/citrate-pathophysiology-and-metabolism
#15
REVIEW
Mehran Monchi
By chelating ionized calcium, citrate allows extracorporeal circuit anticoagulation without a bleeding risk for the patient. Citrate anticoagulation is also associated with a reduced activation of leucocytes and platelets. Citrate clearance by citric acid cycle (Krebs cycle) is not modified by renal failure, but is reduced by about 50% in patients with cirrhosis. Toxic effects of citrate result from a decrease in plasma ionized calcium of the patient. The first side effect is a prolongation of the QT interval...
December 30, 2016: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28070667/erratum-to-regional-citrate-anticoagulation-for-continuous-renal-replacement-therapy-in-children
#16
Mayerly Prada Rico, Jaime Fernández Sarmiento, Ana María Rojas Velasquez, Luz Stella González Chaparro, Ricardo Gastelbondo Amaya, Hernando Mulett Hoyos, Daniel Tibaduiza, Ana Maria Quintero Gómez
No abstract text is available yet for this article.
January 9, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28070048/-role-of-local-citrate-anticoagulation-in-continuous-blood-purification-to-patients-at-high-risk-of-bleeding-in-icu
#17
Shangping Zhao, Hao Ou, Yue Peng, Zuoliang Liu, Mingshi Yang, Xuefei Xiao
To evaluate the safety and efficiency of citrate anticoagulant-based continuous blood purification in patients at high risk of bleeding. 
 Methods: One hundred and fifty-two patients at high risk of bleeding were divided into local citrate group (group A, n=68) and heparin group (group B, n=84). Clotting function, change of pH, ionized sodium, bicarbonate ion, ionized calcium, activated clotting time (ACT) and complications were monitored before and during treatment. 
 Results: Compared to the group A, the incidence of clotting in filter and chamber, the degree of bleeding or fresh bleeding were significantly reduced in the group B (P<0...
December 28, 2016: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28030601/calcium-mass-balance-during-citrate-hemodialysis-a-randomized-controlled-trial-comparing-normal-and-low-ionized-calcium-target-ranges
#18
Jakob Gubensek, Alesa Orsag, Rafael Ponikvar, Jadranka Buturovic-Ponikvar
BACKGROUND: Regional citrate anticoagulation (RCA) during hemodialysis interferes with calcium homeostasis. Optimal ionized calcium (iCa) target range during RCA and consequent calcium balance are unknown. METHODS: In a randomized controlled trial (ACTRN12613001029785) 30 chronic hemodialysis patients were assigned to normal (1.1-1.2 mmol/) or low (0.95-1.05 mmol/l) iCa target range during a single hemodialysis with RCA. The primary outcome was calcium mass balance during the procedure, using a partial spent dialysate collection method; magnesium mass balance was also measured...
2016: PloS One
https://www.readbyqxmd.com/read/28019012/improved-planning-of-leukapheresis-endpoint-with-customized-prediction-algorithm-minimizing-collection-days-volume-of-blood-processed-procedure-time-and-citrate-toxicity
#19
Daniel L Leberfinger, Kira L Badman, Joseph M Roig, Tamara Loos
BACKGROUND: Increased emphasis on cost and productivity in apheresis centers calls for a proficient and predictable hematopoietic progenitor cell (HPC) collection. Therefore, the aim of this study was to determine the value of a customized predictive algorithm that estimates how many blood volumes are required to process for a targeted CD34 cell dose. STUDY DESIGN AND METHODS: Retrospective analysis was performed on 107 HPC collections completed on the Spectra Optia MNC from January 2013 to June 2014 in 51 patients and 12 donors...
December 26, 2016: Transfusion
https://www.readbyqxmd.com/read/28006007/improving-the-diet-for-the-rearing-of-glossina-brevipalpis-newstead-and-glossina-austeni-newstead-blood-source-and-collection-processing-feeding-procedures
#20
Chantel J De Beer, Gert J Venter, Marc J B Vreysen
One of the challenges to maintain tsetse fly (Diptera: Glossinidae) colonies is the sustainable supply of high quality blood meals. The effect of using anticoagulants during collection of the blood, the addition of phagostimulants to the blood meals as well as using mixtures of bovine and porcine blood in different proportions for feeding on colony productivity was assessed. Defibrinated bovine blood was found to be suitable to maintain both the Glossina brevipalpis Newstead and Glossina austeni Newstead colonies...
2016: PloS One
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