The prognostic significance of high/positive expression of tissue VEGF in ovarian cancer
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Bing-Qin Guo1 and Wen-Qiao Lu2
1Department of Pathology, The First Affiliated Hospital of Bengbu Medical College, Anhui 233003, China
2The Interventional Diagnosis and Treatment Ward, Thoracic Hospital in Shandong Province, Shandong 250013, China
Wen-Qiao Lu, email: firstname.lastname@example.org
Keywords: VEGF; ovarian cancer; prognosis
Received: January 19, 2018 Accepted: May 21, 2018 Published: July 17, 2018
Background & aim: At present, numerous reports have shown that high/positive expression of tissue vascular endothelial growth factor (VEGF) may be associated with the prognosis of patients with ovarian cancer. However, their results still remained controversy. Thus, this meta-analysis was designed to analyze and assess the prognostic value of tissue VEGF expression in patients with ovarian cancer.
Method: We searched PubMed, Embase, Cochrane Library and Web of Science to October, 2017. Hazard Ratio (HR) with its 95% confidence intervals (CIs) was used to evaluate the association between high/positive expression of tissue VEGF and the prognosis of ovarian cancer patients. All statistical analyses were performed using standard statistical procedures provided in RevMan 5.2.
Result: A total of 18 studies (including 1145 patients) were included for this meta-analysis. The positive/high expression of tissue VEGF had an obvious association with overall survival (OS) (HR 2.24, 95% CI 1.36–3.70; P=0.002), progression-free survival (PFS) (HR 1.60, 95% CI 1.11–2.31; P=0.01) and disease-free survival (DFS) (HR 3.49, 95% CI 1.27–9.56; P=0.02) of patients with ovarian cancer respectively.
Conclusion: The present meta-analysis indicated that positive/high expression of tissue VEGF may have a close association with survival of ovarian cancer.
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