Intraoperative Intraportal Chemotherapy Combined With Adjuvant Chemotherapy for Stage II and III Colorectal Cancer

In this study, the investigators assessed whether intraoperative Intraportal infusion of 5-FU and oxaliplatin is able to prevent liver metastasis and improve survival in patients with Stage II or Stage III colorectal cancer without apparent liver metastasis based on a thorough preoperative evaluation. Patients with stage II or stage III colorectal cancer (CRC) were randomly assigned to two arms.Arm A: 5-FU 1g and oxaliplatin 100mg + curative resection (study group, n=132). Arm B: curative resection alone (control group, n=132).Follow-up: X-ray, US, CT, blood test, colonoscopy,every 3months. The study endpoints were disease-free survival, overall survival, and liver metastasis-free survival as evaluated by intent-to-treat analysis.