Treatment of portal vein tumor thrombosis of hepatoma patients with either stereotactic radiotherapy or three-dimensional conformal radiotherapy

Japanese Journal of Clinical Oncology
Chun-Shu LinWeng-Yoon Shum

Abstract

Patients with hepatocellular carcinoma (HCC) often have unresectable tumors. Transcatheter arterial chemoembolization (TACE) is one of the limited alternative treatments that can prolong these patients' survival. However, the presence of portal vein tumor thrombosis (PVTT) is a contraindication for TACE and, therefore, HCC patients with PVTT would be depleted of the advantage of TACE. The purpose of this study was to analyze the recanalization rate of thrombosed portal vein and treatment toxicities after stereotactic radiotherapy (SRT) or three-dimensional conformal radiotherapy (3DCRT). From March 2002 to November 2004, 43 patients were enrolled in this prospective study. Twenty-two patients were in the SRT group and 21 in the 3DCRT group. For SRT, 3 Gy per fraction, 3 fractions per week, was given to a total dose of 45 Gy. For 3DCRT, a daily dose of 1.8 Gy, 5 fractions per week, was given to a total dose of 45 Gy. Of the 43 patients, 16 completed the planned radiotherapy. Eventually, 14 patients received evaluation for portal vein recanalization, 8 in the SRT and 6 in the 3DCRT group, respectively. For all patients, the crude response rate was 26%. For 14 evaluable patients, the crude response rate was 79%. It was 75% in the ...Continue Reading

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