scholarly journals Stereotactic Body Radiotherapy Versus Intensity-Modulated Radiotherapy For Hepatocellular Carcinoma With Portal Vein Tumor Thrombosis

Author(s):  
Liqing Li ◽  
Ying Zhou ◽  
Yong Huang ◽  
Ping Liang ◽  
Shixiong Liang ◽  
...  

Abstract Background: It is unclear whether robotic stereotactic body radiotherapy (SBRT) is superior to intensity-modulated radiotherapy (IMRT) in advanced hepatocellular carcinoma (HCC). This study aimed to compare the long-term outcomes of SBRT with those of IMRT in HCCs with portal vein tumor thrombosis (PVTT). Methods: We retrospectively evaluated 287 HCC patients with PVTT who underwent radiotherapy between January 2000 and January 2017. Of them, 154 and 133 patients were treated with IMRT and SBRT, respectively. Overall survival (OS), progression-free survival (PFS), intrahepatic control (IC), and local control (LC) were evaluated in univariable and propensity-score matched analyses. Results: After matching, 102 well-paired patients were selected. There was no significant difference in the 6-, 12-, 24-, and 60-month cumulative OS (73.5, 42.9, 23.6, 7.6% vs. 72.4, 45.1, 29.8, 13.2%, P=0.151), PFS (53.9, 29.3, 21.8, 7.5% vs. 54.5, 19.3, 12.0, 9.6%, P=0.744) , IC (61.4, 45.7, 39.0, 26.8% vs. 75.1, 45.8, 35.9, 28.7%, P=0.144), and LC (85.2, 56.5, 52.1, 47.4% vs. 87.4, 65.2, 62.1, 62.1%, P=0.191) between the IMRT and SBRT groups. A biologically effective dose assumed at an a/b ratio of 10 (BED10) of ≥100 Gy was the optimal cutoff for predicting the OS, PFS, IC, and LC in the patients who received SBRT. Conclusions: When high-precision tracking technology is available, SBRT appears to be a safe and more time-efficient treatment, achieving comparable OS, PFS, IC and LC to IMRT for local advanced HCC with PVTT. A BED10≥100 Gy is recommended if tolerated by normal tissue.

2021 ◽  
Vol 21 (2) ◽  
pp. 105-112
Author(s):  
Sang Jin Kim ◽  
Jong Man Kim

Traditionally, liver transplantation for hepatocellular carcinoma with portal vein tumor thrombosis is not recommended. However, with recent developments in locoregional therapies for hepatocellular carcinoma, more aggressive treatments have been attempted for advanced hepatocellular carcinoma. Recently, various studies on locoregional therapies for downstaging followed by living donor liver transplantation reported inspiring overall survival and recurrence-free survival of patients. These downstaging procedures included three-dimensional conformal radiation therapy, trans-arterial chemoembolization, stereotactic body radiation therapy, trans-arterial radioembolization, hepatic arterial infusion chemotherapy and combinations of these therapies. Selection of the optimal downstaging protocol should depend on tumor location, biology and background liver status. The risk factors affecting outcome include pre-downstaging alpha-fetoprotein values, delta alpha-fetoprotein values, disappearance of portal vein tumor thrombosis on imaging and meeting the Milan criteria or not after downstaging. For hepatocellular carcinoma with portal vein tumor thrombosis, downstaging procedure with liver transplantation in mind would be helpful. If the reaction of the downstaged tumor is good, liver transplantation may be performed.


2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Ming-Yang Chen ◽  
Yu-Chao Wang ◽  
Tsung-Han Wu ◽  
Chen-Fang Lee ◽  
Ting-Jung Wu ◽  
...  

Background. Portal vein tumor thrombosis (PVTT) is a common event in advanced hepatocellular carcinoma (HCC). The optimal treatment for these patients remains controversial. Methods. A retrospective review of 149 patients who had unresectable HCC associated with PVTT between January 2005 and December 2012 was performed. Outcomes related to external beam radiation-based treatment were measured, and clinicopathological features and parameters affecting prognosis were analyzed as well. Results. The radiotherapeutic response of PVTT was an important element that affected the overall treatment response of HCC. Serum α-fetoprotein < 400 ng/mL, the presence of a radiotherapeutic response on PVTT, and receiving additional locoregional therapy were significant prognostic factors affecting the survival of patients. Patients who had received additional locoregional therapy obtained a better outcome, and six of them were eventually able to undergo surgical management with curative intent. Conclusion. The outcome of HCC associated with PVTT remains pessimistic. In addition to the current recommended treatment using sorafenib, a combination of external beam radiotherapy targeting PVTT and locoregional therapy for intrahepatic HCC might be a promising strategy for patients who had unresectable HCC with PVTT. This approach could perhaps offer patients a favorable outcome as well as a possible cure with following surgical management.


2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 442-442
Author(s):  
Bae Kwon Jeong ◽  
Hoon Sik Choi ◽  
Ki Mun Kang ◽  
Hojin Jeong ◽  
Yun Hee Lee ◽  
...  

442 Background: Portal vein tumor thrombosis (PVTT) is commonly accompanied by hepatocellular carcinoma (HCC) patients, and in these cases the treatment options became limited and treatment outcome was poor. Stereotactic body radiotherapy (SBRT) is one of the possible treatment options, which can deliver higher doses with highly conformal target have conducted for treatment of PVTT. However, only few studies about the SBRT have reported, even treatment schedules were not consistent. In this study, we report our institutional experience of treating PVTT in HCC patients using SBRT. Methods: 24 HCC patients with PVTT were treated with SBRT at our institution. All patients had unresectable HCC with PVTT, baseline liver function of Child-Pugh class A or B. SBRT was performed by Cyberknife based on 4D-simulation and 4D-planning. The prescription dose was 45 Gy in 3 fractions in 17 (70.8%) patients, and was modified to 39 to 42 Gy in 3 to 4 fractions in 7 (29.2%) patients whose target was large or adjacent to the bowel. After SBRT, transarterial chemoembolization (TACE) was performed in 16 (66.7%) patients within 3 months. Results: There were 2 (8.3%) patients of PVTT showed complete response, and 11 (45.8%) patients showed partial response. Stable disease was found in 7 (29.2%) patients, and progression in 4 (16.7%) patients. The response rate was lower in patients with tumor thrombus at main portal vein than those at branch of portal vein (main, 30% vs. branch, 71.4%, p = 0.052). The 1- and 2-year overall survival (OS) was 67.5%, 48.2%, respectively, with median survival of 20.8 months. The combination SBRT followed by TACE, and presence of grade 3 hepatic toxicities impacted on survival. The 1-year OS was 71.4% in patients whom TACE was combined after SBRT, which was higher than that of 14.6% who were treated with SBRT alone (p < 0.001). The 1-year OS was 81.1% in patients who did not occur grade 3 hepatic toxicity, while 0% in patients who had grade 3 hepatic toxicity (p = 0.002). Conclusions: SBRT is a relatively effective treatment option for HCC patients of PVTT. Especially combined with TACE. Finding an optimal dose schedule which can reduce hepatic toxicity, while keeping the response seems important to increase the survival.


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