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Meta-Analysis
. 2010 Jul 21;16(27):3450-6.
doi: 10.3748/wjg.v16.i27.3450.

Radiofrequency ablation in the treatment of small hepatocellular carcinoma: a meta analysis

Affiliations
Meta-Analysis

Radiofrequency ablation in the treatment of small hepatocellular carcinoma: a meta analysis

Jun-Guo Liu et al. World J Gastroenterol. .

Abstract

Aim: To evaluate survival and recurrence after radiofrequency ablation (RFA) for the treatment of small hepatocellular carcinoma (HCC) using a meta-analysis.

Methods: Literature on RFA vs surgical resection for the treatment of small HCC published between January 1990 and December 2008 was retrieved. A meta-analysis was conducted to estimate pooled survival and recurrence ratios. A fixed or random effect model was established to collect the data.

Results: The differences in overall survival at 1-year, 3-years and at end of follow-up were not statistically significant between the RFA and surgery groups (P > 0.05). There were no differences in 1-year and 3-year recurrences between the RFA and surgery groups (P > 0.05). However, recurrence in the RFA group was lower than that in the surgery group up to the end of follow-up (P = 0.03). Survival was not significantly different. There was a significant difference in recurrences at the end of follow-up after RFA compared with surgical resection.

Conclusion: RFA did not decrease the number of overall recurrences, and had no effect on survival when compared with surgical resection in a selected group of patients.

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Figures

Figure 1
Figure 1
Fixed effect model of odds ratio for survival during follow-up 1-year after treatment: Radiofrequency ablation vs hepatectomy. RFA: Radiofrequency ablation.
Figure 2
Figure 2
Random effect model of odds ratio for survival of follow-up 3-year (A) and at the end of follow-up (B) after treatment: Radiofrequency ablation vs hepatectomy. RFA: Radiofrequency ablation.
Figure 3
Figure 3
Random effect model of odds ratio for Recurrence of follow-up 1-year (A) and 3-year (B) and the end of follow-up (C) after treatment: Radiofrequency ablation vs hepatectomy. RFA: Radiofrequency ablation.
Figure 4
Figure 4
Funnel plots. A: 7 articles in the meta-analysis of survival during follow-up 1-year after treatment; B: 8 articles in the meta-analysis of survival during follow-up 3-years after treatment; C: 9 articles in the meta-analysis of survival up to the end of follow-up; D: 5 articles in the meta-analysis of recurrence during follow-up 1-year after treatment; E: 6 articles in the meta-analysis of recurrence during follow-up 3-years after treatment; F: 8 articles in the meta-analysis of recurrence up to the end of follow-up.

References

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