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Tan DJH, Lim WH, Yong JN, Ng CH, Muthiah MD, Tan EX, Xiao J, Lim SY, Pin Tang AS, Pan XH, Kabir T, Bonney GK, Sundar R, Syn N, Kim BK, Dan YY, Noureddin M, Loomba R, Huang DQ. UNOS Down-Staging Criteria for Liver Transplantation of Hepatocellular Carcinoma: Systematic Review and Meta-Analysis of 25 Studies. Clin Gastroenterol Hepatol 2022; 21:1475-1484. [PMID: 35181565 DOI: 10.1016/j.cgh.2022.02.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 02/03/2022] [Accepted: 02/07/2022] [Indexed: 01/11/2023]
Abstract
BACKGROUND & AIMS Down-staging is commonly used to select patients with hepatocellular carcinoma (HCC) beyond Milan criteria (MC) for liver transplantation (LT), but outcomes are heterogenous. We aimed to estimate pooled down-staging success rates, HCC recurrence, and overall survival (OS), stratified by criteria used for baseline tumor burden. METHODS We searched Pubmed and EMBASE databases from inception until August 2021 for studies reporting down-staging success (reduction of tumor burden to within MC) and outcomes of adult HCC patients. In addition, we performed a pooled analysis using reconstructed individual participant data to obtain robust estimates for OS. RESULTS We screened 1059 articles and included 25 articles involving 3997 patients. Overall, 55.16% (45.49%-64.46%) underwent successful down-staging, and 31.52% (24.03%-40.11%) received LT (by intention-to-treat analysis [ITT]). Among patients who received LT, 16.01% (11.80%-21.37%) developed HCC recurrence. Comparing studies that used the United Network for Organ Sharing Down-Staging (UNOS-DS) criteria versus studies beyond UNOS-DS or did not specify criteria, down-staging success (by ITT) was 83.21% versus 45.93%, P < .001; the proportion who received LT (by ITT) was 48.61% vs 28.60%, P = .030; and HCC recurrence (among patients who received LT) occurred in 9.06% versus 20.42%, P < .001. Among studies that used UNOS-DS criteria, ITT 1- and 5-year OS from the initiation of down-staging treatment was 86% and 58%, respectively, whereas 1- and 5-year post-LT OS was 94% and 74%, respectively. CONCLUSIONS Among studies that adhered to UNOS-DS criteria, down-staging was successful in four-fifths of patients, >50% received LT, and post-LT outcomes were excellent. These data provide clinical validation for the utilization of UNOS-DS criteria.
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Affiliation(s)
- Darren Jun Hao Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
| | - Wen Hui Lim
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Jie Ning Yong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Cheng Han Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Mark D Muthiah
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; National University Centre for Organ Transplantation, National University Health System, Singapore; Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Eunice X Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; National University Centre for Organ Transplantation, National University Health System, Singapore; Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore
| | - Jieling Xiao
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Snow Yunni Lim
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Ansel Shao Pin Tang
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Xin Hui Pan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Tousif Kabir
- Department of General Surgery, Sengkang General Hospital, Singapore; Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Singapore
| | - Glenn K Bonney
- Division of Hepatobiliary & Pancreatic Surgery, Department of Surgery, National University Hospital, National University Health System, Singapore, Singapore
| | - Raghav Sundar
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Department of Haematology-Oncology, National University Cancer Institute, Singapore
| | - Nicholas Syn
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Biostatistics and Modelling Domain, Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Beom Kyung Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea; Yonsei Liver Center, Severance Hospital, Yonsei University Health System, Seoul, Republic of Korea
| | - Yock Young Dan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore; Biostatistics and Modelling Domain, Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore
| | - Mazen Noureddin
- Cedars-Sinai Fatty Liver Program, Division of Digestive and Liver Diseases, Department of Medicine, Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, California
| | - Rohit Loomba
- NAFLD Research Center, Division of Medicine, University of California San Diego, La Jolla, California
| | - Daniel Q Huang
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; National University Centre for Organ Transplantation, National University Health System, Singapore; Division of Gastroenterology and Hepatology, Department of Medicine, National University Hospital, Singapore, Singapore; NAFLD Research Center, Division of Medicine, University of California San Diego, La Jolla, California.
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Ren A, Li Z, Zhang X, Deng R, Ma Y. A model for predicting post-liver transplantation recurrence in intrahepatic cholangiocarcinoma recipients. J Gastrointest Oncol 2021; 11:1283-1290. [PMID: 33457001 DOI: 10.21037/jgo-20-209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background It is important to select appropriate patients for improving the outcomes of liver transplantation for intrahepatic cholangiocarcinoma (iCCA). The objective of this study was to establish a predictive model for the recurrence of iCCA after liver transplantation. Methods Twenty-one patients who received liver transplantation for iCCA were used to construct a model for predicting recurrence. Predictors of recurrence were tested by a Cox model analysis. The results were validated in 28 patients who were followed up. Results Diameter and number of tumors, and CA19-9 level independently predicted tumor recurrence. At a Cox score threshold of 0.736 [95% confidence interval (CI): 0.549-0.923], a model combining these factors was highly predictive of tumor recurrence and death. A simplified version of the model identified a cut-off value of 6. The 5-year OS rate was lower in patients with a score >6 points compared to those with a score ≤6 points (P=0.005). The 5-year recurrence rate was higher in patients with a score >6 points as compared to those with a score ≤6 points (P=0.034). Conclusions The model developed was useful for predicting recurrence of iCCA after liver transplantation. Large sample, multicenter studies are needed to validate the findings.
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Affiliation(s)
- Ao Ren
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhongqiu Li
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xuzhi Zhang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ronghai Deng
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yi Ma
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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