Soluble P-Selectin, Von Willebrand Factor, And Adamts13 Levels As Risk Factors Of Deep Vein Thrombosis In Cancer Patients Undergoing Chemotherapy
Abstract Background There is a high number of deep vein thrombosis (DVT) incidence among cancer patients undergoing chemotherapy. Chemotherapy-induced vascular endothelial cell activation (VECA) is marked with increasing plasma levels of von Willebrand Factor (VWF) and soluble P-selectin (sP-selectin) leading to activation of endothelial cells and coagulation cascade. The biological role of a disintegrin-like and metalloproteinase with thrombospondin type 1, motif 13 (ADAMTS13) is to control the activity of VWF. The objectives of this study is to investigate the role of sP-selectin, VWF, and ADAMTS13 as risk factors for the incidence of DVT in cancer patients undergoing chemotherapy. Methods This prospective cohort study was conducted in Dr. Kariadi hospital, Semarang Indonesia, on 40 cancer patients. Soluble P-selectin, VWF, and ADAMS13 plasma levels were determined with enzyme-linked immunosorbent assay (ELISA) method, examined before and after chemotherapy. These patients were observed for the possibility of developing DVT during three months. Results Deep vein thrombosis was confirmed in 5 patients (12.5%) after a median period of 8 weeks. In patients with DVT, sP-selectin and VWF were significantly higher, while ADAMTS13 were significantly lower compared in cancer patients without DVT. Pre- and post-chemotherapy concentration of sP selectin, VWF, and ADAMTS13 could effectively predict the incidence of DVT in cancer patients undergoing chemotherapy. The levels of sP-selectin, VWF and ADAMTS13 pre-chemotherapy with cut-off point >106.7 ng/mL, >2.99 U/mL and <0,80 U/mL, respectively, had relative risk (RR) for DVT incidence being 16 (95% CI 2,06-124,25, p=0,001); 36 (95% CI 5,21-248,65, p=0,000) and 10,5 (95% CI 1,31-84,28, p=0,015), respectively, whereas the levels of sP-selectin, VWF and ADAMTS13 post-chemotherapy with cut-off point >111.7 ng/mL, >3,06 U/mL and <0,49 U/mL, respectively, had RR for DVT incidence being 8.7 (95% CI 1,01-74,39, p=0,045); 20,4 (95% CI 2,60-159,94, p=0,004) and 26,25 (95% CI 3,50-196,48, p=0,002), respectively. Pre-chemotherapy vWF levels (cut-off value >2.99 U/mL) was found to be independently predict DVT incidence with RR 11.1 (95% CI, 1.95-62.74, p=0.007). Conclusions Plasma levels of VWF more than 2.99 U/mL pre-chemotherapy was an independent risk factor for DVT incidence, which could be performed early and helpful for thromboprophylaxis therapy.