Document Detail

Radiofrequency ablation for hepatocellular carcinoma: use of low vs maximal radiofrequency power.
MedLine Citation:
PMID:  21427178     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: To investigate whether radiofrequency (RF) ablation with low power (LP) or maximal power (MP) for hepatocellular carcinoma (HCC) can achieve optimal ablation and fewer adverse effects.
METHODS: RF ablation was performed with MP in 101 patients (129 tumours) and with LP in 46 patients (61 tumours). MP RF ablation used power of >120 W. RF power below this was designated as LP. Clinical outcomes were also analysed in subgroups of high-risk tumours near the bile duct and blood vessels.
RESULTS: Primary effectiveness was achieved in 91.8% in the LP group and 89.9% in the MP group (p = 0.795). 1 and 2-year local tumour progression rates were 28% and 30%, respectively, in the LP group, and 24% and 29%, respectively, in the MP group (p = 0.70). 1 and 2-year survival rates were 98% and 98%, respectively, in the LP group, and 93% and 90%, respectively, in the MP group (p = 0.216). The MP group had more adverse effects, with post-RF ablation syndrome, asymptomatic pleural effusion and ascites, than the LP group (20% vs 39% in the MP group; p = 0.027); however, there was no significant difference in major complication rates (6% in the MP and LP groups; p = 0.497). Among the patients with high-risk tumours, RF ablation using MP vs LP was comparable in primary effectiveness (91.7% vs 95.2%; p = 0.618), local tumour progression (42.9% vs 29.2%; p = 0.304) and overall complications (5% vs 8%; p=0.618).
CONCLUSION: RF ablation with LP and MP are comparable in clinical outcomes but considerably fewer adverse effects were encountered in the LP group.
T C Macatula; C-C Lin; C-J Lin; W-T Chen; S-M Lin
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Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2011-03-22
Journal Detail:
Title:  The British journal of radiology     Volume:  85     ISSN:  1748-880X     ISO Abbreviation:  Br J Radiol     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-06-05     Completed Date:  2012-08-06     Revised Date:  2013-06-30    
Medline Journal Info:
Nlm Unique ID:  0373125     Medline TA:  Br J Radiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  e102-9     Citation Subset:  AIM; IM    
Liver Research Unit, Chang Gung Memorial Hospital, Chang Gung University, Taipei, Taiwan.
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MeSH Terms
Carcinoma, Hepatocellular / surgery*
Catheter Ablation / methods*
Liver Neoplasms / surgery*
Middle Aged
Retrospective Studies

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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