Role of coagulation factors in urological malignancy: A prospective, controlled study on prostate, renal and bladder cancer

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Abstract
Objectives: To study the behavior of specific coagulation factors in different types of non‐metastatic urological cancers, and to identify their possible role as diagnostic and prognostic markers.Methods: This was a prospective controlled study, which included three cancer patient groups and a control group of healthy individuals. The cancer subgroups consisted of renal (n = 44), prostate (n = 56) and bladder cancer (n = 47). We excluded patients receiving anticoagulant therapy, or with significant comorbidity. In all patients, certain coagulation parameters were measured (prothrombin time, international normalized ratio, partial thromboplastin time, D‐dimers, fibrinogen, F1 + 2, thrombin–antithrombin complex). Statistical analysis was carried out to explore the association of hemostasis markers with tumor–nodes–metastasis stage, Gleason score, transitional cell carcinoma grade, Fuhrman grade and prostate‐specific antigen.Results: Our final sample consisted in 58 control patients and 147 patients with urological cancer. We found specific patterns of increased coagulation factors in the different cancers that were statistically significant. Renal cancer showed increased levels of D‐dimers, partial thromboplastin time and fibrinogen. D‐dimers and fibrinogen were increased in prostate cancer; whereas in bladder cancer, only fibrinogen was elevated. Correlations were found between certain factors and tumor stage and grading, with D‐dimers being independently associated with higher tumor grade. Thrombin–antithrombin complex was associated with Gleason score. Furthermore, D‐dimers, fibrinogen and F1 + 2 were associated with higher tumor stages (II–IV).Conclusions: The coagulation pathway seems to be activated in urological malignancies. Specific panels of coagulation factors might play a role as screening or prognostic tools in earlier stages of renal, prostate and bladder cancer. Further research should also focus on their role in the association of cancer with thromboembolic events.

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