Journal
ASIA-PACIFIC JOURNAL OF CLINICAL ONCOLOGY
Volume 17, Issue 3, Pages 209-215Publisher
WILEY
DOI: 10.1111/ajco.13361
Keywords
liver neoplasms; portal vein; radiotherapy
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SBRT, especially in combination with TACE, is an effective treatment for patients with HCC and PVTT. An optimal dose schedule must be followed to reduce hepatic toxicity while maintaining tumor response.
Aim Stereotactic-body radiotherapy (SBRT) is a treatment option for portal vein tumor thrombosis (PVTT) in patients with hepatocellular carcinoma (HCC). Here, we report on our experience of treating PVTT using SBRT in patients with concomitant underlying chronic liver disease. Methods This study included 24 patients. The initial prescription dose was 45 Gy in three fractions in 17 (70.8%) patients, but it was modified in the remaining seven (29.2%) patients, with the dose ranging from 39 to 42 Gy in 3-4 fractions. After SBRT, transarterial chemoembolization (TACE) was performed in 16 (66.7%) patients. Results Of the 24 patients, 2 (8.3%) showed complete response, while 11 (45.8%) showed partial response. After a median follow-up of 8.4 months (range: 2.6-56.5 months), the 1-year overall survival (OS) and the median survival were 67.5% and 20.8 months, respectively. Both combined SBRT and TACE and grade >= 3 hepatic toxicity affected the 1-year OS (SBRT alone vs SBRT + TACE: 14.6% vs 71.4%,P < .001; presence of hepatic toxicity vs absence: 0% vs 81.1%,P = .002). Conclusions Overall, SBRT, especially in combination with TACE, is an effective treatment for patients with HCC and PVTT. An optimal dose schedule must be followed to reduce hepatic toxicity while maintaining tumor response.
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