| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
1 Department of Radiology, Samsung Medical Center, Sungkyunkwan University
School of Medicine, 50, Ilwon-dong, Kangnam-ku, Seoul 135-710, South
Korea.
2 Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan
University School of Medicine, Seoul 135-710, South Korea.
3 Biostatistics Unit, Samsung Medical Center, Sungkyunkwan University School of
Medicine, Seoul 135-710, South Korea.
OBJECTIVE. The purpose of this study was to clarify the frequency and risk factors of liver abscess formation after percutaneous radiofrequency ablation in patients with hepatocellular carcinoma.
MATERIALS AND METHODS. Over a 4-year period, 603 patients with 831 hepatocellular carcinomas measuring 5 cm or less in maximum diameter who underwent a total of 751 percutaneous radiofrequency ablation procedures were enrolled in this study. We retrospectively reviewed the medical records and analyzed the overall frequency of liver abscess, risk factors for abscess, and clinical features of the patients. The relationships between liver abscess and potential risk factors were analyzed using either generalized estimating equations or multiple logistic regression analysis.
RESULTS. Liver abscess developed in 14 tumors of 13 patients after 13 (13/751 [1.7%]) ablation procedures. Generalized estimating equations and multiple logistic regression analysis of various potential risk factors revealed that preexisting biliary abnormality prone to ascending biliary infection (p = 0.0088), tumor with retention of iodized oil from previous transcatheter arterial chemoembolization (p = 0.040), and treatment with an internally cooled electrode system (p = 0.016) were associated with a significant risk of liver abscess formation. No patient died of liver abscess, and all successfully recovered from liver abscess with parenteral antibiotics and percutaneous clearance of pus.
CONCLUSION. Although liver abscess formation was infrequent in patients who underwent percutaneous radiofrequency ablation for hepatocellular carcinoma, the patients with significant risk factors—preexisting biliary abnormality prone to ascending biliary infection, tumor with retention of iodized oil, and treatment with an internally cooled electrode system—for liver abscess formation should be closely monitored after treatment.
CiteULike 
Complore 
Connotea 
Del.icio.us 
Digg 
Reddit 
Technorati What's this?
This article has been cited by other articles:
|
|
 |
|
  M.-h. Park, H. Rhim, Y.-s. Kim, D. Choi, H. K. Lim, and W. J. Lee Spectrum of CT Findings after Radiofrequency Ablation of Hepatic Tumors RadioGraphics, March 1, 2008; 28(2): 379 - 390. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 V. Arienti, S. Pretolani, C. M. Pacella, F. Magnolfi, B. Caspani, G. Francica, A. S. Megna, R. Regine, M. Sponza, E. Antico, et al. Complications of Laser Ablation for Hepatocellular Carcinoma: A Multicenter Study Radiology, March 1, 2008; 246(3): 947 - 955. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. Choi, H. K. Lim, H. Rhim, Y.-s. Kim, B. C. Yoo, S. W. Paik, J.-W. Joh, and C. K. Park Percutaneous Radiofrequency Ablation for Recurrent Hepatocellular Carcinoma After Hepatectomy: Long-term Results and Prognostic Factors Ann. Surg. Oncol., August 1, 2007; 14(8): 2319 - 2329. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. Giorgio, G. Ferraioli, D. Choi, and H. K. Lim Liver Abscess Formation After Radiofrequency Ablation in Patients with Hepatocellular Carcinoma Am. J. Roentgenol., February 1, 2006; 186(2): 582 - 583. [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
