Prognostic significance of pretreatment serum carcinoembryonic antigen levels in gastric cancer with pathological lymph node-negative: A large sample single-center retrospective study.

Aim: To assess whether elevated serum carcinoembryonic antigen (CEA) is in the inferior prognosis for pathological lymph node-negative (pN) gastric cancer (GC) patients who underwent D gastrectomy.

Methods: About 469 pN GC patients, who received D radical gastrectomy were retrospectively analyzed. The X-tile plots cut-off point for CEA were 30.