RESUMEN
This study was performed to investigate the prognostic significance of a cumulative score based on the preoperative plasma fibrinogen and serum albumin (FA score) in operable esophageal squamous cell carcinoma (ESCC). Clinicopathologic characteristics, preoperative fibrinogen, and albumin concentrations were retrospectively reviewed in patients who underwent transthoracic esophagectomy. The optimal cutoff value was defined as 4.0 g/L for fibrinogen according to previous studies and as 41.0 g/L for albumin for the lower quartile. Subjects with elevated fibrinogen and decreased albumin levels were allocated a score of 2, those with only one of these two abnormalities were assigned a score of 1, and those with neither of the abnormalities were allocated a score of 0. The preoperative FA score was significantly associated with tumor length, depth of invasion, lymph node involvement, tumor-node-metastasis (TNM) stage, and the modified Glasgow Prognostic Score (mGPS). No significant differences in age, gender, tumor location, degree of differentiation, smoking or alcohol consumption were found between groups. Univariate survival analysis revealed that high preoperative FA score (1/2) was significantly associated with unfavorable disease-free survival (DFS) [hazard ratio (HR), 1.675; 95% confidence interval (CI), 1.278-2.195; P < 0.001] and overall survival (OS) (HR, 1.685; 95% CI, 1.268-2.239; P < 0.001). Furthermore, it remained an independent prognostic indicator for both DFS (HR, 1.394; 95% CI, 1.035-1.879; P = 0.029) and OS (HR, 1.369; 95% CI, 1.010-1.878; P = 0.048) in multivariable Cox regression analysis. A high preoperative FA score could significantly predict impaired long-term survival for ESCC patients who underwent transthoracic esophagectomy.