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  • Title: Inflammation-based prognostic system predicts postoperative survival of esophageal carcinoma patients with normal preoperative serum carcinoembryonic antigen and squamous cell carcinoma antigen levels.
    Author: Ma Q, Liu W, Jia R, Jiang F, Duan H, Lin P, Zhang L, Long H, Zhao H, Ma G.
    Journal: World J Surg Oncol; 2016 May 05; 14():141. PubMed ID: 27151090.
    Abstract:
    BACKGROUND: The Glasgow Prognostic Score (GPS) is an established inflammation-based system that is used to predict the prognosis for several types of malignancies. In this retrospective study, we assessed the postoperative survival of 725 patients with non-metastatic esophageal squamous cell carcinoma who had normal preoperative serum tumor marker levels according to the GPS. METHODS: Among 1394 patients who underwent esophagectomy between August 2006 and December 2010, 725 with normal preoperative serum levels of carcinoembryonic antigen (CEA) and squamous cell carcinoma antigen (SCC-Ag) were enrolled. All demographic, pathologic, and survival data were analyzed retrospectively. Uni- and multivariate analyses were performed to evaluate the relationship with overall survival. The Kaplan-Meier analysis and log-rank tests were used to compare the survival curves between patients with GPS 0 (group A) and 1 or 2 (group B). RESULTS: Patients in group A exhibited significantly better 3- and 5-year cancer-specific survival (CSS) rates (0.780 and 0.759, respectively) than those in group B (0.624 and 0.605, respectively). Multivariate Cox regression analysis revealed that age, tumor length, pathological tumor-node-metastasis (pTNM) stage, venous invasion, lymph node metastasis, serum albumin and C-reactive protein levels, and GPS were associated with postoperative survival of these patients. Further multivariate analysis confirmed that GPS was an independent prognostic factor. The Kaplan-Meier analysis and log-rank tests demonstrated a significant difference in CSS between groups A and B (P = 0.001). CONCLUSIONS: GPS may be a valuable prognostic indicator for esophageal cancer patients with normal preoperative CEA and SCC-Ag serum levels.
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