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Preliminary Results of 3-Dimensional Conformal Radiotherapy for Primary Unresectable Hepatocellular Carcinoma  

Keum Ki Chang (Departments of Radiation Oncology, Yonsei University College of Medicine)
Park Hee Chul (Department of Radiation Oncology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine)
Seong Jinsil (Departments of Radiation Oncology, Yonsei University College of Medicine)
Chang Sei Kyoung (Departments of Radiation Oncology, Yonsei University College of Medicine)
Han Kwang Hyub (Departments of Internal Medicine, Yonsei University College of Medicine)
Chon Chae Yoon (Departments of Internal Medicine, Yonsei University College of Medicine)
Moon Young Myoung (Departments of Internal Medicine, Yonsei University College of Medicine)
Kim Gwi Eon (Departments of Radiation Oncology, Yonsei University College of Medicine)
Suh Chang Ok (Departments of Radiation Oncology, Yonsei University College of Medicine)
Publication Information
Radiation Oncology Journal / v.20, no.2, 2002 , pp. 123-129 More about this Journal
Abstract
Purpose : The purpose of this study 띤as to determine the potential role of three-dimensional conformal radiotherapy (3D-CRT) in the treatment of primary unresectable hepatocellular carcinoma. The preliminary results on the efficacy and the toxicity of 3D-CRT are reported. Materials and Methods : Seventeen patients were enrolled in this study, which was conducted prospectively from January 1995 to June 1997. The exclusion criteria included the presence of extrahepatic metastasis, liver cirrhosis of Child-Pugh classification C, tumors occupying more than two thirds of the entire liver, and a performance status of more than 3 on the ECOG scale. Two patients were treated with radiotherapy only while the remaining 15 were treated with combined transcatheter arterial chemoembolization. Radiotherapy was given to the field including the tumor plus a 1.5 cm margin using a 3D-CRT technique. The radiation dose ranged from $36\~60\;Gy$ (median; 59.4 Gy). Tumor response was based on a radiological examination such as the CT scan, MR imaging, and hepatic artery angiography at $4\~8$ weeks following the completion of treatment. The acute and subacute toxicities were monitored. Results : An objective response was observed in 11 out of 17 patients, giving a response rate of $64.7\%$. The actuarial survival rate at 2 years was $21.2\%$ from the start of radiotherapy (median survival; 19 months). Six patients developed a distant metastasis consisting of a lung metastasis in 5 patients and bone metastasis in one. The complications related to 30-CRT were gastro-duodenitis $(\geq\;grade\;2)$ in 2 patients. There were no treatment related deaths and radiation induced hepatitis. Conclusion : The preliminary results show that 3D-CRT is a reliable and effective treatment modality for primary unresectable hepatocellular carcinoma compared to other conventional modalities. Further studies to evaluate the definitive role of the 3D-CRT technique in the treatment of primary unresectable hepatocellular carcinoma are needed.
Keywords
Hepatocellular carcinoma; Radiotherapy; Conformal radiotherapy;
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