• Snezhana S Stoencheva, Veselin G Popov, Zhanet G Grudeva-Popova, and Tanya I Deneva.
• Bratisl Med J. 2023 Jan 1; 124 (1): 293529-35.

BackgroundProthrombotic tendency is characteristic of tumors. The aim of the study is to investigate the changes in the laboratory parameters for coagulation and fibrinolysis, namely in fibrinogen, thrombin-antithrombin complex (ТАТ), tissue factor (ТF), prothrombin fragment (F1+2), antithrombin III (AT III), D-dimer and screening coagulation tests in cancer patients before initiation of chemotherapy.Materials And MethodsLevels of F1+2, fibrinogen, ТАТ, AT III, TF, D-dimer, PT, aPTT and TT were measured baseline in 80 patients with breast and lung cancer before systemic treatment. The same parameters were investigated in 65 healthy volunteers. TF, ТАТ, F1+2 were measured by ELISA; AT III, D-dimer, fibrinogen and screening coagulation tests were measured by automated coagulation system Sysmex CS 2000i.  RESULTS: Levels of F1+2, fibrinogen, ТАТ, TF, and D-dimer in cancer patients were significantly higher than those in the control group, while the levels of ATIII activity were significantly lower (p < 0.001). The highest area under the ROC curve was for D-dimer, which made it a good marker for the risk of thrombosis.ConclusionHigher levels of TF, ТАТ, F1+2, fibrinogen and D-dimer and lower activity of АТ III in cancer patients support our hypothesis of an association between malignant disease and coagulation disorders. Cancer patients are at an increased risk of thrombosis wherefore antithrombotic prophylaxis may be considered (Tab. 6, Fig. 2, Ref. 34). Text in PDF www.elis.sk Keywords: coagulation, fibrinolysis, cancer.

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