Department of Hepatobiliary and Pancreatic Surgery, Department of Liver Transplantation, Shulan (Hangzhou) Hospital, Zhejiang Shuren University School of Medicine, Hangzhou, China; Division of Hepatobiliary Pancreatic Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; National Clinical Research Center of Infectious Diseases, Hangzhou, China.
Division of Hepatobiliary Pancreatic Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
Hepatobiliary Pancreat Dis Int. 2020 Jun;19(3):229-234. doi: 10.1016/j.hbpd.2020.03.009. Epub 2020 Apr 8.
Portal vein tumor thrombosis (PVTT) is regarded as a contraindication for liver transplantation (LT) in hepatocellular carcinoma (HCC). However, some of these patients may have a favorable prognosis after LT. In this study, we evaluated the biological behavior of HCC with PVTT using tumor biomarker (alpha-fetoprotein, AFP) and F-FDG positron emission tomography (tumor standard uptake value) to identify a subset of patients who may be suitable for LT.
Seventy-five HCC-PVTT liver recipients transplanted during February 2016 and June 2018 were analyzed. Different pre-transplant prognostic factors were identified by univariate and multivariate analyses. PVTT status was identified following Vp classification (Vp1-Vp4).
Three-year recurrence-free survival and overall survival rates were 40% and 65.4% in Vp2-Vp3 PVTT patients, 21.4% and 30.6% in Vp4 PVTT patients (P < 0.05). Total tumor diameter >8 cm, pre-transplant AFP level >1000 ng/mL and intrahepatic tumor maximal standard uptake value (SUVmax-tumor >5) were independent risk factors for HCC recurrence and overall survival after LT in Vp2-3 PVTT patients. Low risk patients were defined as total tumor diameter ≤8 cm; or if total tumor diameter more than 8 cm, with both pre-transplant AFP level less than 1000 ng/mL and intrahepatic tumor SUVmax less than 5, simultaneously. Twenty-two Vp2-3 PVTT HCC patients (46.8%) were identified as low risk patients, and their 3-year recurrence-free and overall survival rates were 67.6% and 95.2%, respectively.
Patients with segmental or lobar PVTT and biologically favorable tumors defined by AFP and F-FDG SUVmax might be suitable for LT.
门静脉癌栓(PVTT)被认为是肝细胞癌(HCC)肝移植(LT)的禁忌证。然而,这些患者中的一些在 LT 后可能有良好的预后。在这项研究中,我们使用肿瘤标志物(甲胎蛋白,AFP)和 F-FDG 正电子发射断层扫描(肿瘤标准摄取值)评估了伴有 PVTT 的 HCC 的生物学行为,以确定可能适合 LT 的患者亚组。
分析了 2016 年 2 月至 2018 年 6 月期间接受 75 例 HCC-PVTT 肝脏移植的患者。通过单变量和多变量分析确定了不同的移植前预后因素。根据 Vp 分类(Vp1-Vp4)确定 PVTT 状态。
Vp2-Vp3 PVTT 患者的 3 年无复发生存率和总生存率分别为 40%和 65.4%,Vp4 PVTT 患者分别为 21.4%和 30.6%(P<0.05)。总肿瘤直径>8cm、移植前 AFP 水平>1000ng/ml 和肝内肿瘤最大标准摄取值(SUVmax-tumor>5)是 Vp2-3 PVTT 患者 LT 后 HCC 复发和总生存率的独立危险因素。低危患者定义为总肿瘤直径≤8cm;或如果总肿瘤直径大于 8cm,则同时满足移植前 AFP 水平<1000ng/ml 和肝内肿瘤 SUVmax<5。22 例 Vp2-3 PVTT HCC 患者(46.8%)被确定为低危患者,其 3 年无复发生存率和总生存率分别为 67.6%和 95.2%。
具有节段性或叶性 PVTT 和由 AFP 和 F-FDG SUVmax 定义的生物学有利肿瘤的患者可能适合 LT。