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Comparisons between radiofrequency ablation and stereotactic body radiotherapy for liver malignancies: Meta-analyses and a systematic review

Authors
 Jeongshim Lee  ;  In-Soo Shin  ;  Won Sup Yoon  ;  Woong Sub Koom  ;  Chai Hong Rim 
Citation
 RADIOTHERAPY AND ONCOLOGY, Vol.145 : 63-70, 2020 
Journal Title
 RADIOTHERAPY AND ONCOLOGY 
ISSN
 0167-8140 
Issue Date
2020
Keywords
Liver neoplasm ; Meta-analysis ; Radiofrequency ablation ; Stereotactic body radiotherapy
Abstract
INTRODUCTION: Radiofrequency ablation (RFA) is a standard ablative modality for small liver malignancies. Stereotactic body radiotherapy (SBRT) has emerged although yet suffers a lack of high-level evidence. We performed meta-analyses and a systematic review to integrate the literature and help in clinical decision-making. METHODS: Systemic searches were performed of the PubMed, Medline, and EMBASE databases to identify controlled studies comparing RFA and SBRT. RESULTS: Eleven studies involving 2238 patients were included. Among them, eight studies were for treating early hepatocellular carcinomas (HCCs) and three for liver metastases. Including HCCs and liver metastases studies, the pooled two-year local control (LC) rate was higher in the SBRT arm (83.8%, 95% confidence interval [CI]: 77.6-88.4) than that in the RFA arm (71.8%, 95% CI: 61.5-80.2) (p = 0.024). Among studies on liver metastases, the pooled two-year LC rate was higher in the SBRT arm (83.6% vs. 60.0%, p < 0.001). No significant difference was found between arms in HCC studies (SBRT vs. RFA: 84.5 vs. 79.5% p = 0.431). Pooled analysis of overall survival (OS) in HCC studies showed an odds ratio of 1.43 (95% CI: 1.05-1.95, p = 0.023), favoring RFA. Among the two liver metastases studies with comparative survival data, no significant difference was observed. CONCLUSION: LC was equivalent between RFA and SBRT for HCC and better for SBRT for the treatment of liver metastases. RFA was associated with better OS for HCC, but discrepancy between LC and OS requires further investigation, as they are local modalities having comparable efficacy.
Full Text
https://www.sciencedirect.com/science/article/pii/S0167814019335042
DOI
10.1016/j.radonc.2019.12.004
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Koom, Woong Sub(금웅섭) ORCID logo https://orcid.org/0000-0002-9435-7750
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/175483
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