[Impact of the extent of gastric resection on the prognosis of patients with middle one-third gastric cancer].

Objective: To investigate the impact of the extent of gastric resection on the prognosis of patients with middle one-third gastric cancer.

Methods: From January 1998 to December 2005, 222 patients with middle one-third gastric cancer underwent D2 radical resection in the Affiliated Union Hospital, Fujian Medical University. Among them, 66 underwent distal gastrectomy (DG group), while 156 underwent total gastrectomy (TG group). The 5-year survival rates were compared between two groups. The prognostic factors were evaluated by univariate and multivariate analyses.

Results: The 5-year survival rates of DG group and TG group were 63.9% and 49.8% respectively, with significant difference (P<0.05). Nevertheless, compared to DG group, the tumors in TG group had bigger size, later TNM stage, and higher proportion of locating lesser curvature of stomach (all P<0.01). Multivariate analysis revealed that invasion depth, lymph node metastasis and TNM classification were independent prognostic factors (all P<0.05), but the extent of gastric resection was not (P>0.05).

Conclusion: If curative resection can be performed, the long-term prognosis of patients with middle one-third gastric cancer is not affected by the extent of gastric resection, and distal gastrectomy is feasible.