Abstract:
PURPOSE:To evaluate the pattern and risks for intrahepatic recurrence after percutaneous radiofrequency (RF) ablation for hepatocellular carcinoma (HCC). MATERIALS AND METHODS:We studied 62 patients with 72 HCCs (< or =4 cm) who were treated with percutaneous RF ablation. The mean follow-up period was 19.1 months (6.0-49.1). We assessed the incidence and cumulative disease-free survival of local tumor progression (LTP) and intrahepatic distant recurrence (IDR). To analyze the risk factors, we examined the following, for the LTP: (1) tumor diameter, (2) contact with vessels, (3) degree of approximation to hepatic hilum, (4) contact with hepatic capsule, (5) presence of ablative safety margin, (6) degree of benign periablational enhancement and (7) serum alpha-fetoprotein; for the IDR: (1) severity of hepatic disease, (2) presence of HBsAg, (3) serum alpha-fetoprotein, (4) whether RF ablation was the initial treatment and (5) multiplicity of tumor for IDR. RESULTS:The incidence of overall recurrence, LTP and IDR was 62.9%, 26.4% and 53.2%, respectively. The cumulative disease-free survival rates were 52%, 82% and 56% at 1 year, 26%, 63% and 30% at 2 years, respectively. Univariate analysis showed that the significant risk factors for LTP were: a tumor with a diameter >3 cm, contact of HCC with a vessel and an insufficient safety margin (p<0.05). A multivariate stepwise Cox hazard model showed that the measurement of a tumor diameter >3 cm and insufficient safety margin were independent factors. Only the increased serum alpha-fetoprotein was a significant risk factor for IDR (p<0.05). CONCLUSION:Intrahepatic recurrence after percutaneous RF ablation is common. Large HCC (>3 cm) with high serum alpha-fetoprotein should be treated more aggressively because of higher risk for recurrence.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Kim YS,Rhim H,Cho OK,Koh BH,Kim Ydoi
10.1016/j.ejrad.2006.03.007subject
Has Abstractpub_date
2006-09-01 00:00:00pages
432-41issue
3eissn
0720-048Xissn
1872-7727pii
S0720-048X(06)00090-8journal_volume
59pub_type
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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更新日期:1989-08-01 00:00:00
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journal_title:European journal of radiology
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doi:10.1016/j.ejrad.2004.02.008
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 杂志文章,随机对照试验
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2019.108650
更新日期:2019-10-01 00:00:00
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journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2007.01.008
更新日期:2007-06-01 00:00:00
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journal_title:European journal of radiology
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pub_type: 杂志文章
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