[The fibrinogen-fibrin-fibrinolysis system in rheumatoid arthritis]

The enzymatic, nonenzymatic and XIIa-dependent fibrinolysis was inhibited. In RA without systemic manifestations the main cause of appearance of soluble complexes of monomeric fibrins (SCMF) in the blood is a local activation of coagulation in the inflamed joint tissues. It is suggested that an increase of SCMF concentration in the blood in patients with RA is a reliable and dynamic index of the activity of the inflammatory process.