Vascular endothelial growth factor staining and elevated INR in advanced epithelial ovarian carcinoma

Background The purpose of this study was to determine whether vascular endothelial growth factor (VEGF) expression in tumors correlates with the incidence of an elevated prothrombin time (PT), specifically an international normalized ratio (INR) ≥ 1.4, in patients undergoing primary surgical cytoreduction for ovarian cancer. Methods INRs were obtained on all patients perioperatively. VEGF expression was determined by immunostaining of tumor specimens using published protocols. Results One hundred patients underwent surgical cytoreduction. Sixty-seven percent of patients had postoperative INR of 1.4 or greater. INRs of greater than or equal to 1.8 were found in 5% of patients. INR elevation was independent of mean estimated blood loss (EBL) with the EBL in the patients with INRs ≥ 1.4 not significantly different than the EBL in the patients with INRs