Prognostic value of preoperative serum tumor markers in gastric cancer
Ze-Bo Huang;Xin Zhou;Jun Xu;Yi-Ping Du;Wei Zhu;Jian Wang;Yong-Qian Shu;Ping Liu;Department of Oncology, First Affiliated Hospital of Nanjing Medical University;
AIM:To evaluate the prognostic value of preoperative carcinoembryonic antigen(CEA), carbohydrate antigen(CA)19-9, and CA50 in patients undergoing D2 resection.METHODS:We evaluated 363 patients with gastric cancer who underwent gastrectomy at our hospital from January 2006 to December 2009. Blood samples were obtained from each patient within 1 wk before surgery. The cut-off values for serum CEA, CA19-9,and CA50 were 5 ng/mL, 37 U/mL, and 20 U/mL, respectively. The correlation between preoperative tumor marker levels and prognosis was studied by means of univariate and multivariate analyses.RESULTS:The preoperative serum positive rates of CEA, CA19-9 and CA50 were 24.0%, 18.9% and24.5%, respectively. The positivity rate of serum CEA was significantly correlated with age(P 0.001), sex(P = 0.022), tumor size(P = 0.007) and depth of invasion(P = 0.018); CA19-9 with tumor size(P = 0.042)and lymph node metastasis(P 0.001); and CA50 onlywith lymph node metastasis(P = 0.001). In multivariate analysis, tumor size, T category, N category, vascular or neural invasion, and adjuvant chemotherapy were independent prognostic factors for overall survival. CA19-9 had an independent prognostic significance in patients without adjuvant chemotherapy(P = 0.027).CONCLUSION:Preoperative serum CEA, CA19-9 and CA50 are prognostic in patients with gastric cancer. Only CA19-9 is an independent prognostic factor after surgery without adjuvant chemotherapy.
【CateGory Index】： R735.2