Premium
Radiofrequency ablation for hepatocellular carcinoma and metastatic liver tumors: A comparative study
Author(s) -
Chow Danny H. F.,
Sinn Lorraine H. Y.,
Ng Kelvin K.,
Lam Chi Ming,
Yuen Jimmy,
Fan Sheung Tat,
Poon Ronnie T. P.
Publication year - 2006
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.20674
Subject(s) - medicine , radiofrequency ablation , hepatocellular carcinoma , metastasis , ablation , liver tumor , survival rate , gastroenterology , tumor progression , radiology , cancer
Background This study compared the effectiveness of radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC) and liver metastases. Methods We compared the outcomes of 240 patients with HCC and 44 patients with liver metastases treated with RFA. Data were prospectively collected and retrospectively analyzed. Effects of different variables on recurrences were studied. Results A total of 406 tumor nodules were treated. The median size of the largest ablated tumor was 2.5 cm, and the median tumor number was 1. Complete tumor ablation was achieved in 91.2%. Local recurrence rate was 15.4% after a median follow‐up of 24.5 months. There was no significant impact of tumor pathology on local recurrence. However, patients with liver metastasis had higher extrahepatic recurrence rate ( P = 0.019) and shorter disease‐free survival ( P = 0.007). Patients with multiple tumors had higher local ( P = 0.047) and extrahepatic ( P = 0.019) recurrence rates than those with a solitary tumor. Tumor size had an impact on local recurrence rate only in patients with liver metastasis with a higher rate in those with tumor >2.5 cm in diameter ( P = 0.028). Conclusions Tumor pathology does not appear to have a significant impact on local recurrence rates. RFA is effective in local tumor control for both HCC and liver metastasis. J. Surg. Oncol. 2006;94:565–571. © 2006 Wiley‐Liss, Inc.