化疗联合免疫治疗在提高肝癌合并门静脉癌栓术后疗效中的作用

目的研究手术切除联合门静脉免疫化疗对原发性肝癌（HCC）合并门静脉癌栓（PVTT）患者的临床疗效的影响。方法将2001年1月至2005年12月收治的76例原发性肝癌合并门静脉主干和（或）一级分支癌栓患者分为两组,A组（n=29）行肿瘤切除加癌栓取出术,术后经门静脉行免疫化疗（5-氟尿嘧啶、阿霉素、顺铂、干扰素-α）;B组（n=47）仅行手术切除加癌栓取出术。比较两组患者生存率并对预后影响因素进行分析。结果A、B两组6个月,1、2、3年生存率分别为82．3％和52．7％．46．5％和20．2％,14．3％和5．8％,14．3％和5．8％．中位生存时间分别为11．5和6．0个月（P=0．010）,其中无瘤生存分别为4．5和2．4个月（P=0．032）。多因素回归分析显示,影响总生存期的因素包括化疗、病理分级和肿瘤大小。影响无瘤生存期的因素包括化疗和病理分级。结论HCC合并PVTT患者采取手术切除联合门静脉免疫化疗是有效的。

Efficacy of postoperative chemotherapy combined with immunotherapy for hepatocellular carcinoma with major portal vein tumor thrombus

OBJECTIVE: To evaluate the efficacy of surgical treatment combined with immunochemotherapy via portal vein for hepatocellular carcinoma (HCC) with major portal vein tumor thrombus (PVTT). METHODS: Between January 2001 and December 2005 76 HCC patients with tumor thrombus in portal trunk and (or) the first-order branch were recruited into the study. Patients were divided into group A (n = 29) and B (n = 47). Patients in group A were treated with hepatectomy plus portal thrombectomy in combination with postoperative adjuvant immunochemotherapy administered via portal vein. The immunochemotherapy regimen consisted of 5-Fluorouracil, Adriamycin, platinol and alpha-Interferon (PIAF). Patients in group B were subjected to hepatectomy plus thrombectomy alone. Survival rates were compared between two groups, and prognostic factors were identified. RESULTS: Half-, One-, two- and three-year cumulative survival rates were markedly greater in group A than group B, being 82.3% vs 52.7%, 46.5% vs 20.2%, 14.3% vs 5.8%, 14.3% vs 5.8%, respectively. Group A had a significantly longer median survival time and median tumor-free survival time as compared with group B, being 11.5 months vs 6.0 months (P = 0.010), 4.5 months vs 2.4 months (P = 0.032), respectively. Multivariate analysis revealed that immunochemotherapy, pathological grading and tumor size were independent factors for survival times. And immunochemotherapy and pathological grading were independent factors for tumor-free survival time. CONCLUSIONS: Surgical resection combined with adjuvant immunochemotherapy via portal vein represents as an effective modality for HCC with PVTT.