OBJECTIVE: To investigate the relationship between serum vascular endothelial growth factor (VEGF) and clinicopathological factors and to determine whether VEGF is an independent prognostic factor of ovarian cancer patients. METHODS: Fifty-six women with International Federation of Gynecology and Obstetrics stages I to IV epithelial ovarian cancer undergoing surgery were enrolled. Clinical and pathologic items were recorded. Pretreatment VEGF serum samples of the 56 women were measured by an enzyme-linked immunosorbent assay. The results were correlated to clinical data. The histopathologic items and serum VEGF influencing clinical outcome were evaluated comparatively. RESULTS: The median VEGF serum level in ovarian cancer patients was 458.7 pg/mL. The 75% quatile was defined as the cutoff level. Elevated vascular endothelial growth factor serum levels before therapy correlated significantly with poorer disease-free survival (DFS) (log rank test, P = 0.001) and overall survival (OS) (log rank test, P < 0.001) on all of the 56 patients. Besides, significantly reduced DFS (log rank test, P = 0.001) and OR (log rank test, P = 0.006) were also observed on 40 patients with residual disease less than 2 cm. High histologic grade (RR = 2.24 for DFS; RR = 2.38 for OS) and elevated serum VEGF levels (RR = 3.34 for DFS; RR = 4.47 for OS) are the prognostic factors on the 56 ovarian carcinoma patients by multivariate analyses. The advanced surgical staging (RR = 3.28 for DFS; RR = 3.84 for OS), high histologic grade (RR = 2.55 for DFS; RR = 2.44 for OS), and elevated serum VEGF levels (RR = 5.62 for DFS; RR = 5.37 for OS) are the prognostic factors for 40 ovarian carcinoma patients with residual disease less than 2 cm by multivariate analyses. CONCLUSIONS: Pretreatment VEGF serum levels might be regarded as an additional factor in predicting the outcome of ovarian cancer patients. It also could provide prognostic information in clinically relevant subsets, such as those of residual disease less than 2 cm. Anti-angiogenic therapy, if is available, might be a new treatment modality for ovarian cancer patients with poor prognosis predicted by VEGF and other clinical parameters. Copyright 1999 Academic Press.
OBJECTIVE: To investigate the relationship between serum vascular endothelial growth factor (VEGF) and clinicopathological factors and to determine whether VEGF is an independent prognostic factor of ovarian cancerpatients. METHODS: Fifty-six women with International Federation of Gynecology and Obstetrics stages I to IV epithelial ovarian cancer undergoing surgery were enrolled. Clinical and pathologic items were recorded. Pretreatment VEGF serum samples of the 56 women were measured by an enzyme-linked immunosorbent assay. The results were correlated to clinical data. The histopathologic items and serum VEGF influencing clinical outcome were evaluated comparatively. RESULTS: The median VEGF serum level in ovarian cancerpatients was 458.7 pg/mL. The 75% quatile was defined as the cutoff level. Elevated vascular endothelial growth factor serum levels before therapy correlated significantly with poorer disease-free survival (DFS) (log rank test, P = 0.001) and overall survival (OS) (log rank test, P < 0.001) on all of the 56 patients. Besides, significantly reduced DFS (log rank test, P = 0.001) and OR (log rank test, P = 0.006) were also observed on 40 patients with residual disease less than 2 cm. High histologic grade (RR = 2.24 for DFS; RR = 2.38 for OS) and elevated serum VEGF levels (RR = 3.34 for DFS; RR = 4.47 for OS) are the prognostic factors on the 56 ovarian carcinomapatients by multivariate analyses. The advanced surgical staging (RR = 3.28 for DFS; RR = 3.84 for OS), high histologic grade (RR = 2.55 for DFS; RR = 2.44 for OS), and elevated serum VEGF levels (RR = 5.62 for DFS; RR = 5.37 for OS) are the prognostic factors for 40 ovarian carcinomapatients with residual disease less than 2 cm by multivariate analyses. CONCLUSIONS: Pretreatment VEGF serum levels might be regarded as an additional factor in predicting the outcome of ovarian cancerpatients. It also could provide prognostic information in clinically relevant subsets, such as those of residual disease less than 2 cm. Anti-angiogenic therapy, if is available, might be a new treatment modality for ovarian cancerpatients with poor prognosis predicted by VEGF and other clinical parameters. Copyright 1999 Academic Press.
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