[Perioperative nutritional support in patients with digestive tract cancer]

Tumor patients are high-risk group of malnutrition, and the characteristics of pathophysiology of digestive tract tumor can aggravate the malnutrition, so the perioperative nutritional support should be planed and implemented for these patients. However, the understanding of nutritional support is still insufficient. Reducing preoperative fasting time, reasonable preoperative nutritional support, early postoperative enteral nutrition and multiple forms in combination are the optimal strategy of the perioperative nutritional treatment and management. As the condition of cancer patients is always complicated, in the practice of clinical implementation, medical guidelines, patients condition and clinical experience of the medical practitioners should be combined to accelerate the effect of nutritional support and to improve the outcome of the patients.