营养不良是恶性肿瘤常见的伴随性疾病现象,营养不良不仅损害机体组织器官的生理功能,降低机体的免疫功能,还会增加术后并发症发生率和病死率,延长住院时间,影响患者的预后。对于有营养不良的患者给予营养支持可 Malnutrition is a common concomitant disease in malignant tumors. Malnutrition not only damages the physiological functions of tissues and organs of the body, but also reduces the body’s immune function. It also increases the incidence of postoperative complications and mortality, prolongs the length of hospital stay, and affects the prognosis of patients . Nutritional support for malnourished patients may be