Journal
INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS
Volume 80, Issue 4, Pages 992-995Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ijrobp.2010.03.015
Keywords
Proton beam therapy; Hepatocellular carcinoma; Gastrointestinal bleeding
Funding
- Grants-in-Aid for Scientific Research [21390338] Funding Source: KAKEN
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Purpose: To evaluate the safety and effectiveness of proton beam therapy for hepatocellular carcinoma (HCC) located adjacent to the alimentary tract. Patients and Methods: Forty-seven patients (median age, 69 years; range, 43-82 years) who had HCC located within 2 cm of the alimentary tract underwent proton beam therapy. Liver damage according to the Child-Pugh classification was Class A in 35 patients, Class B in 9, and Class C in 3. Treatment protocols of the early 16 patients and the late 31 patients were 72.6 GyE in 22 fractions and 77 GyE in 35 fractions, respectively. Results: During the median follow-up period of 23 months, 24 patients died; the remaining 23 patients were alive until September 2008. The median overall survival was 33.9 months (95% confidence interval [CI], 10.8-57.0 months). Actuarial overall and local progression-free survival rates at 3 years were 50.0% and 88.1%, respectively. Grade 2 and 3 alimentary tract hemorrhage was observed in 3 (6.4%) and 1 (2.1%) patients, respectively. Conclusions: Our proton beam therapy strategy for HCC located adjacent to the alimentary tract seems to be effective but should be performed with caution. (C) 2011 Elsevier Inc.
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