Byung Chul Yoo

Learn More
BACKGROUND Portal vein thrombosis (PVT) is a common complication in patients with advanced-stage hepatocellular carcinoma (HCC). The authors evaluated the impact of radiotherapy (RT) for PVT of HCC and analyzed the dose-response relation between RT and PVT. METHODS Between March 1995 and December 2003, 59 patients diagnosed as HCC with PVT were included.(More)
GOALS To compare the efficacy of radiofrequency ablation (RFA) and surgical resection in a group of patients with a Child-Pugh score of 5 and a single HCC less than 4 cm in diameter. BACKGROUND Radiofrequency ablation (RFA) has become a popular method for treatment of hepatocellular carcinoma (HCC) and has been applied as an alternative primary therapy to(More)
We evaluated the long-term survival results and safety of percutaneous radiofrequency ablation (RFA) for recurrent hepatocellular carcinoma (HCC) after hepatectomy, and assessed the prognostic factors that can influence its long-term therapeutic results. One hundred and two patients, who had 119 recurrent HCC in their livers, underwent ultrasound-guided(More)
BACKGROUND & AIMS The aim was to assess 10-year outcomes of radiofrequency ablation as a first-line therapy of early-stage hepatocellular carcinoma with an analysis of prognostic factors. METHODS From April 1999 to April 2011, 1305 patients (male:female=993:312; mean age, 58.4 years) with 1502 early-stage hepatocellular carcinomas (mean size, 2.2 cm) were(More)
UNLABELLED Clevudine is a pyrimidine analogue with potent and sustained antiviral activity against HBV. The present study evaluated the safety and efficacy of 30 mg clevudine once daily for 24 weeks and assessed the durable antiviral response for 24 weeks after cessation of dosing. A total of 243 hepatitis B e antigen (HBeAg)-positive chronic hepatitis B(More)
The purpose of this study was to evaluate the long-term survival results and complications of percutaneous radiofrequency ablation (RFA) in patients with early-stage hepatocellular carcinoma (HCC). Between April 1999 and May 2005, 570 patients with 674 early-stage HCCs underwent percutaneous RFA as a first-line treatment option in a single institution. We(More)
BACKGROUND There is insufficient information about HBsAg levels and their correlation with serum hepatitis B virus (HBV) DNA in chronic hepatitis B (CHB). AIMS We aimed to describe HBsAg levels during various phases of CHB and to investigate the correlation with serum HBV DNA levels. METHODS A total of 645 treatment-naïve Korean CHB patients were(More)
BACKGROUND Clinicopathologic features and prognosis of combined hepatocellular cholangiocarcinoma (HCC-CC) have not been established. METHODS Data of patients who underwent surgical resection for HCC-CC were compared with those of hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (CC) patients. RESULTS The prevalence of hepatitis B(More)
BACKGROUND/AIMS Although the natural seroclearance rate of Hepatitis B surface antigen (HBsAg) is reported to be 0.4-2% in western countries, this is not well known in Korea. This study aimed to elucidate the rate of natural HbsAg seroclearance, factors associated with seroclearance and prognosis after seroclearance. METHODOLOGY In 1999, 250 chronic HBsAg(More)
BACKGROUND AND AIM Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide. However, the clinical features of young HCC patients have not been fully studied. In the present study, we investigated the prevalence, clinical characteristics and prognosis of young HCC patients. METHODS A retrospective analysis was performed for HCC patients(More)