Radiofrequency ablation versus resection for technically resectable colorectal liver metastasis: a propensity score analysis

Abstract Background Liver resection is the first-line treatment for patients with resectable colorectal liver metastasis (CRLM), while radiofrequency ablation (RFA) can be used for small unresectable CRLM because of disease extent, poor anatomical location, or comorbidities. However, the long-term o...

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Main Authors: Li-Jun Wang, Zhong-Yi Zhang, Xiao-Luan Yan, Wei Yang, Kun Yan, Bao-Cai Xing
Format: Article
Language:English
Published: BMC 2018-10-01
Series:World Journal of Surgical Oncology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12957-018-1494-3
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author Li-Jun Wang
Zhong-Yi Zhang
Xiao-Luan Yan
Wei Yang
Kun Yan
Bao-Cai Xing
author_facet Li-Jun Wang
Zhong-Yi Zhang
Xiao-Luan Yan
Wei Yang
Kun Yan
Bao-Cai Xing
author_sort Li-Jun Wang
collection DOAJ
description Abstract Background Liver resection is the first-line treatment for patients with resectable colorectal liver metastasis (CRLM), while radiofrequency ablation (RFA) can be used for small unresectable CRLM because of disease extent, poor anatomical location, or comorbidities. However, the long-term outcomes are unclear for RFA treatment in resectable CRLM. This study aimed to compare the recurrence rates and prognosis between resectable CRLM patients receiving either liver resection or RFA. Methods Consecutive patients who underwent RFA or hepatic resection from November 2010 to December 2015 were assigned in this retrospective study. Propensity score analysis was used to eliminate baseline differences between groups. Survival and recurrence rates were compared between patients receiving liver resection and RFA. Results With 1:2 ratio of propensity scoring, 46 patients in the RFA group and 92 in the resection group were successfully matched. Overall survival was similar between the two groups, but the resection group had a higher disease-free survival (median, 22 months vs. 14 months). Whereas among patients with a tumor size of ≤ 3 cm, disease-free survival was similar in the two groups (median, 24 months vs. 21 months). Compared to the resection group, the RFA group had a higher rate of intrahepatic recurrence (34.8% vs. 12.0%) and a shorter recurrence free period. The local and systemic recurrence rate and recurrence-free period for the same were insignificant in the two groups. Poor disease-free survival was associated with RFA, T4, tumor diameter > 3 cm, and lymph node positivity. Conclusion Among patients with technically resectable CRLM, resection provided greater disease-free survival, although both treatment modalities provided similar overall survival.
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spelling doaj.art-879700cb041b4cfaa221d61e192974452022-12-22T01:13:04ZengBMCWorld Journal of Surgical Oncology1477-78192018-10-011611810.1186/s12957-018-1494-3Radiofrequency ablation versus resection for technically resectable colorectal liver metastasis: a propensity score analysisLi-Jun Wang0Zhong-Yi Zhang1Xiao-Luan Yan2Wei Yang3Kun Yan4Bao-Cai Xing5Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital and InstituteKey laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasound, Peking University Cancer Hospital and InstituteKey laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital and InstituteKey laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasound, Peking University Cancer Hospital and InstituteKey laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Ultrasound, Peking University Cancer Hospital and InstituteKey laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Hepatopancreatobiliary Surgery Unit I, Peking University Cancer Hospital and InstituteAbstract Background Liver resection is the first-line treatment for patients with resectable colorectal liver metastasis (CRLM), while radiofrequency ablation (RFA) can be used for small unresectable CRLM because of disease extent, poor anatomical location, or comorbidities. However, the long-term outcomes are unclear for RFA treatment in resectable CRLM. This study aimed to compare the recurrence rates and prognosis between resectable CRLM patients receiving either liver resection or RFA. Methods Consecutive patients who underwent RFA or hepatic resection from November 2010 to December 2015 were assigned in this retrospective study. Propensity score analysis was used to eliminate baseline differences between groups. Survival and recurrence rates were compared between patients receiving liver resection and RFA. Results With 1:2 ratio of propensity scoring, 46 patients in the RFA group and 92 in the resection group were successfully matched. Overall survival was similar between the two groups, but the resection group had a higher disease-free survival (median, 22 months vs. 14 months). Whereas among patients with a tumor size of ≤ 3 cm, disease-free survival was similar in the two groups (median, 24 months vs. 21 months). Compared to the resection group, the RFA group had a higher rate of intrahepatic recurrence (34.8% vs. 12.0%) and a shorter recurrence free period. The local and systemic recurrence rate and recurrence-free period for the same were insignificant in the two groups. Poor disease-free survival was associated with RFA, T4, tumor diameter > 3 cm, and lymph node positivity. Conclusion Among patients with technically resectable CRLM, resection provided greater disease-free survival, although both treatment modalities provided similar overall survival.http://link.springer.com/article/10.1186/s12957-018-1494-3Radiofrequency ablationResectionLiver metastasisColorectal cancerSurvival
spellingShingle Li-Jun Wang
Zhong-Yi Zhang
Xiao-Luan Yan
Wei Yang
Kun Yan
Bao-Cai Xing
Radiofrequency ablation versus resection for technically resectable colorectal liver metastasis: a propensity score analysis
World Journal of Surgical Oncology
Radiofrequency ablation
Resection
Liver metastasis
Colorectal cancer
Survival
title Radiofrequency ablation versus resection for technically resectable colorectal liver metastasis: a propensity score analysis
title_full Radiofrequency ablation versus resection for technically resectable colorectal liver metastasis: a propensity score analysis
title_fullStr Radiofrequency ablation versus resection for technically resectable colorectal liver metastasis: a propensity score analysis
title_full_unstemmed Radiofrequency ablation versus resection for technically resectable colorectal liver metastasis: a propensity score analysis
title_short Radiofrequency ablation versus resection for technically resectable colorectal liver metastasis: a propensity score analysis
title_sort radiofrequency ablation versus resection for technically resectable colorectal liver metastasis a propensity score analysis
topic Radiofrequency ablation
Resection
Liver metastasis
Colorectal cancer
Survival
url http://link.springer.com/article/10.1186/s12957-018-1494-3
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