Perioperative versus postoperative chemotherapy for gastric cancer: A propensity score matched analysis.

Aim: In advanced gastric cancer, chemotherapy, given either perioperatively or as an adjuvant treatment, has been shown to improve survival when compared to surgery alone. However, no trial has compared these two approaches head-to-head. Hence, we aimed to compare the short- and long-term outcomes of patients with gastric cancer who received either perioperative chemotherapy or adjuvant chemotherapy.