[Role of hemostasis in metastatic spread].

Blood fibrin being deposited around the circulating tumor cells seems to contribute to metastatic spread, thus enhancing the cell implantation. Whereas the same fibrin hampers cells detachment from a tumor node and their further dissemination in the organism. The anticoagulation blood system interfers with the fibrin formation, whereby inhibiting the cell implantation and metastatic spread, but is may also enhance them, contributing to detachment and dissemination of tumor cells. In this respect, to enhance the antimetastatic resistance of the body there must be a balanced interaction between the coagulation and anticoagulation blood systems with an unremoved tumor and the increased anticoagulation function after the tumor node resection especially in the early postoperative period.