Journal
CANCER
Volume 103, Issue 10, Pages 2181-2188Publisher
WILEY
DOI: 10.1002/cncr.21012
Keywords
primary liver carcinoma; hypofractionation; 3-dimensional conformal radiation therapy
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BACKGROUND. The purpose of the current study was to evaluate the tolerance and efficacy of hypofractionated three-dimensional conformal radiotherapy (3DCRT) with or without transarterial chemoembolization (TACE) for technically unresectable or medically inoperable primary liver carcinoma (PLC). METHODS. Between April 1999 and August 2003, 128 patients with a clinical diagnosis of PLC received hypofractionated 3DCRT at Cancer Hospital, Guangxi Medical University. Both hypofractionated 3DCRT and TACE were used to treat 48 of these 128 patients. Liver cirrhosis of Child-Pugh Grade A was found in 108 patients, and Grade B was found in 20 patients. The mean gross tumor volume (GTV) was 459 +/- 430 cm(3). A mean total irradiation dose of 53.6 +/- 6.6Gy was delivered at an average fraction of 4.88 +/- 0.47Gy, 3 times a week using 8-MV photons. RESULTS. The median follow-up time after 3DCRT was 12 months (range, 2-56 mos.). The immediate response rate was 55%. The overall survival rates at 1, 2, and 3 years were 65%, 43%, and 33%, respectively, with a median survival of 20 months (range, 7-31 mos.). Radiation Therapy Oncology Group (RTOG) Grade 2 acute gastrointestinal complications developed in 8 patients, whereas 4 patients developed Grade 3 late gastrointestinal complications. Radiation-induced liver disease (RILD) developed in 19 (15%) patients, of which 12 had Child-Pugh Grade B liver cirrhosis, and 7 had Grade A. GTV and associated liver cirrhosis were identified by Cox regression analysis as independent predictors for survival (P = 0.044 and 0.015). CONCLUSIONS. Hypofractionated 3DCRT is effective in carefully selected patients with PLC. Gastrointestinal complications and RILD were the most distinct complications. (c) 2005 American Cancer Society.
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