Liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma: A retrospective cohort study

Background: Combined hepatocellular cholangiocarcinoma (CHC) is a rare primary liver cancer, and whether liver transplantation should be implemented among CHC patients is still controversial. We intend to conduct a retrospective cohort study based on the Surveillance, Epidemiology, and End Results (...

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Main Authors: Shizheng Mi, Ziqi Hou, Guoteng Qiu, Zhaoxing Jin, Qingyun Xie, Jiwei Huang
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Heliyon
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844023081537
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author Shizheng Mi
Ziqi Hou
Guoteng Qiu
Zhaoxing Jin
Qingyun Xie
Jiwei Huang
author_facet Shizheng Mi
Ziqi Hou
Guoteng Qiu
Zhaoxing Jin
Qingyun Xie
Jiwei Huang
author_sort Shizheng Mi
collection DOAJ
description Background: Combined hepatocellular cholangiocarcinoma (CHC) is a rare primary liver cancer, and whether liver transplantation should be implemented among CHC patients is still controversial. We intend to conduct a retrospective cohort study based on the Surveillance, Epidemiology, and End Results (SEER) database to investigate the prognosis of liver transplantation vs. liver resection among CHC patients. Methods: Patients diagnosed with CHC (ICD-O-3:8180/3) and treated with transplantation or hepatectomy were extracted from the SEER database (2000–2018). We utilized Propensity Score Matching to control confounding bias. Kaplan-Meier curve was used for survival analysis, and Cox regression was used to find independent factors associated with prognosis. Results: We identified 123 (transplantation: 49; resection: 74) patients with CHC who were treated between 2004 and 2015. In the entire cohort, survival analysis demonstrated transplantation group was associated with better overall survival and cancer-specific survival (log-rank p = 0.004 and p = 0.003, respectively). In addition, liver transplantation still conferred better overall and cancer-specific survival than liver resection after Propensity Score Matching (log-rank p = 0.024 and p = 0.048, respectively). However, this advantage didn't appear in the subgroup, regardless of whether the tumor size was greater than 3 cm or not. (≤3 cm: OS log-rank p = 0.230, CSS log-rank p = 0.370; >3 cm: OS log-rank p = 0.110, CSS log-rank p = 0.084). Multivariate analysis validated the finding that liver transplantation was a protective factor for overall survival (HR = 0.55 [0.31–0.95], p = 0.032). Conclusions: Liver transplantation may be an option in individuals with CHC and should be taken into consideration due to its advantages in terms of overall survival and cancer-specific survival. However, a sizable sample is required for future studies to determine which subset of CHC patients may benefit more from liver transplantation.
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spelling doaj.art-4cabd909f1474458828bbef4c51bffab2023-10-30T06:07:56ZengElsevierHeliyon2405-84402023-10-01910e20945Liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma: A retrospective cohort studyShizheng Mi0Ziqi Hou1Guoteng Qiu2Zhaoxing Jin3Qingyun Xie4Jiwei Huang5Department of Liver Surgery and Liver Transplantation Center, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Liver Surgery and Liver Transplantation Center, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Liver Surgery and Liver Transplantation Center, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Liver Surgery and Liver Transplantation Center, West China Hospital, Sichuan University, Chengdu, ChinaDepartment of Liver Surgery and Liver Transplantation Center, West China Hospital, Sichuan University, Chengdu, ChinaCorresponding author. Department of Liver Surgery and Liver Transplantation Center, West China Hospital, Sichuan University, No. 37 GuoXueXiang Road, Wuhou District, Chengdu, 610041, China.; Department of Liver Surgery and Liver Transplantation Center, West China Hospital, Sichuan University, Chengdu, ChinaBackground: Combined hepatocellular cholangiocarcinoma (CHC) is a rare primary liver cancer, and whether liver transplantation should be implemented among CHC patients is still controversial. We intend to conduct a retrospective cohort study based on the Surveillance, Epidemiology, and End Results (SEER) database to investigate the prognosis of liver transplantation vs. liver resection among CHC patients. Methods: Patients diagnosed with CHC (ICD-O-3:8180/3) and treated with transplantation or hepatectomy were extracted from the SEER database (2000–2018). We utilized Propensity Score Matching to control confounding bias. Kaplan-Meier curve was used for survival analysis, and Cox regression was used to find independent factors associated with prognosis. Results: We identified 123 (transplantation: 49; resection: 74) patients with CHC who were treated between 2004 and 2015. In the entire cohort, survival analysis demonstrated transplantation group was associated with better overall survival and cancer-specific survival (log-rank p = 0.004 and p = 0.003, respectively). In addition, liver transplantation still conferred better overall and cancer-specific survival than liver resection after Propensity Score Matching (log-rank p = 0.024 and p = 0.048, respectively). However, this advantage didn't appear in the subgroup, regardless of whether the tumor size was greater than 3 cm or not. (≤3 cm: OS log-rank p = 0.230, CSS log-rank p = 0.370; >3 cm: OS log-rank p = 0.110, CSS log-rank p = 0.084). Multivariate analysis validated the finding that liver transplantation was a protective factor for overall survival (HR = 0.55 [0.31–0.95], p = 0.032). Conclusions: Liver transplantation may be an option in individuals with CHC and should be taken into consideration due to its advantages in terms of overall survival and cancer-specific survival. However, a sizable sample is required for future studies to determine which subset of CHC patients may benefit more from liver transplantation.http://www.sciencedirect.com/science/article/pii/S2405844023081537Liver transplantationHepatectomyCombined hepatocellular cholangiocarcinomaOverall survivalCancer-specific survival
spellingShingle Shizheng Mi
Ziqi Hou
Guoteng Qiu
Zhaoxing Jin
Qingyun Xie
Jiwei Huang
Liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma: A retrospective cohort study
Heliyon
Liver transplantation
Hepatectomy
Combined hepatocellular cholangiocarcinoma
Overall survival
Cancer-specific survival
title Liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma: A retrospective cohort study
title_full Liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma: A retrospective cohort study
title_fullStr Liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma: A retrospective cohort study
title_full_unstemmed Liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma: A retrospective cohort study
title_short Liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma: A retrospective cohort study
title_sort liver transplantation versus resection for patients with combined hepatocellular cholangiocarcinoma a retrospective cohort study
topic Liver transplantation
Hepatectomy
Combined hepatocellular cholangiocarcinoma
Overall survival
Cancer-specific survival
url http://www.sciencedirect.com/science/article/pii/S2405844023081537
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