Journal of Surgery Concepts & Practice ›› 2021, Vol. 26 ›› Issue (02): 130-137.doi: 10.16139/j.1007-9610.2021.02.009

• Original article • Previous Articles     Next Articles

Effect of surgical margin width on prognosis in patients with single intrahepatic cholangiocarcinoma from a multicenter study

LIU Hongzhi1, LIN Ziguo1, HUANG Jianlong1, ZHOU Weiping2, CHENG Zhangjun3, LOU Jianying4, ZHENG Shuguo5, BI Xinyu6, WANG Jianming7, GUO Wei8, LI Fuyu9, WANG Jian10, ZHENG Yamin11, LI Jingdong12, CHENG Shi13, LIU Jingfeng1, ZENG Yongyi1()   

  1. 1. Department of Hepatobiliary Surgery, Mengchao Hepatobiliary Hospital, Fujian Medical University, Fujian Fuzhou 350025, China
    2. Department of Hepatic Surgery, Eastern Hepatobiliary Surgery Hospital, Navy Medical University, Shanghai 200433, China
    3. Department of Hepatopancreatobiliary Surgery, Zhongda Hospital, Southeast University, Jiangsu Nanjing 210009, China
    4. Department of Hepatopancreatobiliary Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang Hangzhou 310009, China
    5. Department of Biliary Surgery, Southwest Hospital, Army Medical University, Chongqing 400038, China
    6. Department of Hepatobi-liary Surgery, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
    7. Department of Biliary and Pancreatic Surgery, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Hubei Wuhan 430030, China
    8. Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
    9. Department of Biliary Surgery, West China Hospital, Sichuan University, Sichuan Chengdu 610041, China
    10. Department of Biliary and Pancreatic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
    11. Department of General Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
    12. Department of Hepatobiliary Surgery, Affiliated Hospital of North Sichuan Medical College, Sichuan Nanchong 617000, China
    13. Department of General Surgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
  • Received:2021-01-26 Online:2021-03-25 Published:2022-07-27
  • Contact: ZENG Yongyi E-mail:lamp197311@126.com

Abstract:

Objective To investigate the effect of wide surgical margin on the prognosis of patients with single intrahepatic cholangiocarcinoma (ICC) undergoing hepatectomy and the effect of microvascular invasion (MVI) on the treatment of hepatectomy with both wide surgical margin and narrow surgical margin. Methods From December 2011 to December 2017, the clinicopathological data of 302 patients with single ICC who underwent radical resection were retrospectively studied in 13 medical centers. According to the width of surgical margin, there were 126 patients (41.7%) in wide surgical margin group (≥1 cm) and 176 patients (58.3%) in narrow surgical margin group (<1 cm). Overall survival rate and disease-free survival rate of two groups were compared by Kaplan-Meier analysis. Subgroup analysis was conducted to compare the differences in prognosis of patients with different MVI. Results Using 1∶1 propensity score matching(PSM), 83 patients were in both wide surgical margin group and narrow surgical margin group, and there was no statistical difference in baseline data between two groups (all P>0.05). Disease-free survival rate in wide surgical margin group before PSM was significantly higher than that in narrow surgical margin group (P=0.005), while overall survival rate showed no statistically significant difference (P=0.053). After PSM, both overall survival rate and disease-free survival rate in wide surgical margin group were significantly higher than those in narrow surgical margin group (P<0.05). There was no statistically significant difference in both overall survival rate and disease-free survival rate among patients with MVI positive after liver resection with different surgical margins (P>0.05). In MVI negative group, however both overall survival rate and disease-free survival rate were significantly higher in the patients with wide surgical margin hepatectomy than in those with narrow surgical margin (P<0.05). Conclusions Wide surgical margin in hepatectomy can increase overall survival and disease-free survival in patients with single ICC, but does not improve prognosis when patients with MVI.

Key words: Intrahepatic cholangiocarcinoma, Surgical margin width, Microvascular invasion, Propensity score matching, Multicenter

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