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Hypofractionated radiotherapy for hepatocellular carcinomas adjacent to the gastrointestinal tract. | LitMetric

AI Article Synopsis

  • The study investigates hypofractionated radiotherapy (HFRT) for inoperable hepatocellular carcinoma (HCC) patients near the gastrointestinal (GI) tract, aiming to find a safer treatment alternative.
  • A total of 66 patients were treated with HFRT, showing a 2-year local recurrence rate of 11.3% and an overall survival rate of 60.4%, with manageable toxicities.
  • The findings suggest that HFRT offers effective local control and low gastrointestinal toxicity, making it a promising treatment option for HCC lesions in challenging locations.

Article Abstract

Aim: Decisions regarding therapeutic plans for inoperable patients with hepatocellular carcinoma (HCC) adjacent to the gastrointestinal (GI) tract are challenging because radiofrequency ablation has the potential risk of thermal injury. Moreover, the response rate of transcatheter arterial chemoembolization is relatively low and stereotactic body radiotherapy (SBRT) is believed to be too toxic. We have applied hypofractionated radiotherapy (HFRT) for such lesions. This study investigated the outcomes and toxicities of this treatment.

Methods: Among consecutive HCC patients treated with radiotherapy with curative intent at our institution between 2015 and 2019, we retrospectively extracted those outside of the indication for SBRT due to exceeding the constraint of the GI tract and who were treated using HFRT with a prescription dose of 42 Gy in 14 fractions and prophylactic proton pump inhibitor administration for 6 months. The oncological outcomes and toxicities were investigated.

Results: A total of 66 patients with 73 lesions were eligible. The median follow-up period was 24.0 months. The local recurrence, intrahepatic recurrence, liver-related death, and overall survival rates at 2 years were 11.3%, 50.6%, 15.9%, and 60.4%, respectively. Six (9.1%) patients experienced Child-Pugh score deterioration ≥2 within 6 months following treatment. Two and one patient developed grades 2 and 3 gastroduodenal bleeding, respectively.

Conclusions: HFRT can achieve good local control in patients with HCC adjacent to the GI tract, with low GI toxicity incidence. Our study demonstrated that HFRT can be a potentially curative treatment option for lesions.

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Source
http://dx.doi.org/10.1111/hepr.13590DOI Listing

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