Background: Haemodilution and hypothermia induce coagulopathy separately, but their combined effect on coagulation has not been widely studied. Fibrinogen concentrate can correct dilutional coagulopathy and has an additional effect when combined with factor XIII concentrate. However, their effect on dilutional coagulopathy concomitant with hypothermia has not been studied previously. Free oscil...

BACKGROUND Haemodilution and hypothermia induce coagulopathy separately, but their combined effect on coagulation has not been widely studied. Fibrinogen concentrate can correct dilutional coagulopathy and has an additional effect when combined with factor XIII concentrate. However, their effect on dilutional coagulopathy concomitant with hypothermia has not been studied previously. Free oscill...

Blood coagulation often accompanies bacterial infections and sepsis and is generally accepted as a consequence of immune responses. Though many bacterial species can directly activate individual coagulation factors, they have not been shown to directly initiate the coagulation cascade that precedes clot formation. Here we demonstrated, using microfluidics and surface patterning, that the spatia...

We report a study on the importance of factor IX activation in thromboplastin-dependent coagulation in plasma. Diluted, CaCl2-containing thromboplastin solutions at constant phospholipid concentration were used to trigger the coagulation in plasma from patients with congenital factor IX and factor VIII deficiency in the presence and absence of added factors IX and VIII, and the generation of th...

A number of therapeutics have been developed or are under development aiming to modulate the coagulation network to treat various diseases. We used a systems model to better understand the effect of modulating various components on blood coagulation. A computational model of the coagulation network was built to match in-house in vitro thrombin generation and activated Partial Thromboplastin Tim...

In preparation 110 Background: Apart from mediating fibrin deposition, the activated coagulation factors(F) VIIa, Xa and thrombin share the common ability to activate protease-activated receptors (PARs), which are generally assumed to mediate critical functions in angiogenesis and smooth and cardiac muscle physiology. The common ability of coagulation factors to activate the same PARs gives ris...

Hemostatic serine proteinases-thrombin, Factor VIIa, Factor Xa, play the central role in blood coagulation and thrombosis. Activation of coagulation and generation of active proteinases is initiated by tissue factor (TF) that is expressed by cells of the innate immune system and endothelial cells after tissue damage and cell activation induced by trauma, infection, hypoxia and other cell injury...

A large body of evidence has shown that systemic coagulopathy is a key event in severe systemic inflammation, such as that which occurs in sepsis. Systemic coagulopathy is the net result of activation of coagulation and defective systems of natural inhibition of coagulation, on the one hand, and attenuation of fibrinolysis on the other. Activation of coagulation is primarily driven by the extri...

In 42 children with congenital heart disease coagulation factor levels were studied serially during the first 20 hours following cardiopulmonary bypass surgery. The acyanotic patients, and also cyanotic patients who survived the operation, showed a progressive improvement in their coagulation profile from initial low postoperative levels. In 12 cyanotic patients who died within 72 hours, howeve...

923 April 2015 P rothrombin complex concentrates (PCCs) are recommended in preference to other treatments such as therapeutic plasma for urgent reversal of vitamin K antagonists.1,2 PCCs contain either three or four coagulation factors (factors ii, iX, and X, with or without factor Vii) and, depending on formulation, low doses of coagulation inhibitors such as protein C, protein S, and heparin ...