胃癌是最常见恶性肿瘤之一,在我国其发病率和病死率均列恶性肿瘤的前2位。胃癌的主要治疗手段是手术切除,Ⅰ期患者的5年生存率可达90%以上;但对进展期患者的疗效并不理想,Ⅱ~Ⅲ期的5年生存率仅为11%~40%。以手术为主的积极的综合治疗方法已成为胃癌临床研究的主要方向[1]。近年 Gastric cancer is one of the most common malignant tumors in China, its incidence and mortality rates are listed in the first two malignant tumors. The main treatment of gastric cancer is surgical resection, Ⅰ-year survival rate of 5-year patients up to 90%; but the effect of advanced patients is not ideal, Ⅱ ~ Ⅲ 5-year survival rate was only 11% to 40% . Surgical-based active comprehensive treatment has become the main direction of clinical research of gastric cancer [1]. in recent years