近来临床试验数据表明对结直肠癌手术切除后具有复发危险的选择性患者辅助化疗具有较大的价值.用5-氟脲嘧啶和左旋咪唑作为单一治疗的辅助化疗可减少Dukes’C期(淋巴结转移)结肠癌患者的复发和死亡率.尽管外科辅助治疗对选择性结直肠癌患者有效,但不理想,不是对所有患者有益,减少肿瘤复发率和死亡率只有30%～40%.许多患 Recent clinical trial data indicate that it is of great value in selective patient adjuvant chemotherapy after surgical resection of colorectal cancer. Adjuvant chemotherapy with 5-fluorouracil and levamisole as monotherapy can reduce Dukes’ C stage (lymph nodes). Metastasis) Recurrence and mortality of patients with colon cancer. Although surgical adjuvant therapy is effective for patients with selective colorectal cancer, it is not ideal and is not beneficial to all patients. Reduction of tumor recurrence rate and mortality is only 30% to 40%.