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Original Article
Survival Benefit with IMRT Following Narrow-Margin Hepatectomy in Patients with Hepatocellular Carcinoma Close to Major Vessels
Wei-Hu Wang1,†, Zhi Wang1,†, Jian-Xiong Wu2,†, Tao Zhang1, Wei-Qi Rong2, Li-Ming Wang2, Jing Jin1, Shu-Lian Wang1, Yong-Wen Song1, Yue-Ping Liu1, Hua Ren1, Hui Fang1, Wen-Qing Wang1, Xin-Fan Liu1, Zi-Hao Yu1 andYe-Xiong Li1,*
DOI: 10.1111/liv.12857
This article is protected by copyright. All rights reserved.
Issue
Cover image for Vol. 35 Issue 5
Liver International
Accepted Article (Accepted, unedited articles published online and citable. The final edited and typeset version of record will appear in future.)
1 Departments of Radiation Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences
2 Abdominal Surgery, Cancer Hospital and Institute, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC)
† Authors share co-first authorship
*Corresponding author: Ye-Xiong Li, MD, Department of Radiation Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing 100021, P.R. China. Tel: (+86) 10-87788860; Fax: (+86) 10-67706153; E-mail:[email protected]
This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/liv.12857
Abstract
Purpose
To investigate the role of postoperative intensity-modulated radiotherapy (IMRT) in patients receiving narrow-margin hepatectomy for hepatocellular carcinoma (HCC) located close to the major vessels.
Methods
This exploratory study involved 181 HCC patients. Of them, 116 were treated with narrow-margin (<1.0 cm) hepatectomy. Thirty-three of the 116 underwent postoperative IMRT (Group A), while 83 did not receive radiotherapy (Group B). The remaining 65 patients underwent wide-margin (≥1.0 cm) hepatectomy (Group C). Prognosis and patterns of recurrence were assessed in the 3 groups.
Results
The 3-year overall survival (OS) and disease-free survival (DFS) rates were 89.1% and 64.2% in Group A, 67.7% and 52.2% in Group B, and 86.0% and 60.1% in Group C, respectively. The OS and DFS of Group A and Group C patients surpassed those of Group B patients (Group A vs. B, P = 0.009 and P = 0.038; and Group C vs. B, P = 0.002 and P = 0.010). Patients in Groups A and C experienced significantly fewer early recurrences than did patients in Group B (P = 0.002). Furthermore, patients in Groups A and C experienced substantially fewer intrahepatic marginal (P = 0.048) and diffuse recurrences (P =0.018), and extrahepatic metastases (P=0.038) than did patients in Group B. No patient developed radiation-induced liver disease.
Conclusions
Postoperative IMRT following narrow-margin hepatectomy may be a favorable therapy for both its safety profile and clinical benefit in patients with HCC located close to the major vessels.
This article is protected by copyright. All rights reserved.
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