Improved survival with radiotherapy in hepatocellular carcinoma with major vascular invasion: A propensity‐matched analysis of Surveillance, Epidemiology, and End Results database

监测、流行病学和最终结果 肝细胞癌 流行病学 倾向得分匹配 医学 血管侵犯 放射治疗 内科学 肿瘤科 数据库 癌症登记处 计算机科学
作者
Qiuyan Lin,Xiaoquan Huang,Canmei Zhong,Tiancheng Luo,Xiaoqing Zeng,Shiyao Chen
出处
期刊:Cancer Medicine [Wiley]
卷期号:8 (2): 515-526 被引量:16
标识
DOI:10.1002/cam4.1937
摘要

Abstract Objectives Hepatocellular carcinoma (HCC) associated with major vascular invasion is an advanced stage disease with an extremely poor prognosis and low survival rate. Our study evaluated the survival benefit of radiotherapy (RT) in HCC patients with major vascular invasion through Surveillance, Epidemiology, and End Results database. Methods We analyzed 3181 HCC patients with major vascular invasion cases diagnosed from 2004 to 2013. Patients (N = 308) who underwent RT and patients (N = 2873) who did not receive RT were compared. We successfully analyzed patients using propensity score matching (PSM). Kaplan‐Meier and Cox‐regression analyses were applied to assess prognosis. Results The median survival time in radiation‐treated group was longer compared to the control group (7 months vs 3 months; P < 0.001) in the overall sample and 3 months longer compared to the control group (7 months vs 4 months; P < 0.001) in a PSM cohort. Cox‐regression analyses showed that radiation‐treated patients in propensity‐matched sample had a significantly lower risk of mortality (HR: 0.625, 95% CI: 0.522‐0.749, P < 0.001) compared with untreated patients. The radiation‐treated groups had better survival rate than untreated group. Subgroup analysis revealed that the survival time of patients in radiation‐treated group was significantly longer than that in the untreated group ( P < 0.001 and P = 0.026, respectively). The subgroup analysis also revealed that RT provides a survival benefit regardless of race, marital status, and tumor size after PSM. Conclusions Radiotherapy provides improves survival in HCC patients with major vascular invasion, especially for tumor(s) confined to one lobe and not on surface of liver.
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