近年来研究表明, 胃肠道恶性肿瘤患者在围手术期发生营养不良及免疫状态低下的发病率明显增加, 大大增加了术后并发症发生及肿瘤复发的危险性, 并极大程度地影响患者术后的恢复,更严重者,术前营养状态低下甚至造成 In recent years, studies have shown that gastrointestinal cancer patients with perioperative malnutrition and low immune status increased significantly increased the incidence of postoperative complications and the risk of tumor recurrence and greatly affect the patient Postoperative recovery, more serious preoperative nutritional status is low and even caused