大肠癌根治术后肝转移是导致术后复发转移死亡的原因之一。目前尚无有效的方法进行预防。我们采用在根治性手术后选择门静脉系统的分支置管，术后进行连续化疗，消灭肝内亚临床转移灶，以达到预防肝转移的发生。我院自１９８６～１９９７年对２８例病人进行了观察治疗，现... Liver metastasis after radical resection of colorectal cancer is one of the causes of postoperative recurrence and metastasis. There is no effective way to prevent it. We used a branch catheter placed in the portal vein system after radical surgery, followed by continuous chemotherapy to eliminate subclinical metastases in the liver to prevent liver metastasis. Our hospital has observed and treated 28 patients from 1986 to 1997.