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Treatment Outcome after Fractionated Conformal Radiotherapy for Hepatocellular Carcinoma in Patients with Child-Pugh Classification B in Korea (KROG 16-05)

PURPOSE: There is limited data on radiotherapy (RT) for hepatocellular carcinoma (HCC) in patients with Child-Pugh classification B (CP-B). This study aimed to evaluate the treatment outcomes of fractionated conformal RT in HCC patients with CP-B. MATERIALS AND METHODS: We retrospectively reviewed t...

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Detalles Bibliográficos
Autores principales: Bae, Sun Hyun, Park, Hee Chul, Yoon, Won Sup, Yoon, Sang Min, Jung, In-Hye, Lee, Ik Jae, Kim, Jun Won, Seong, Jinsil, Kim, Tae Hyun, Nam, Taek-Keun, Choi, Youngmin, Lee, Sun Young, Jang, Hong Seok, Lee, Dong Soo, Kim, Jin Hee
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Korean Cancer Association 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6790850/
https://www.ncbi.nlm.nih.gov/pubmed/30971065
http://dx.doi.org/10.4143/crt.2018.687
Descripción
Sumario:PURPOSE: There is limited data on radiotherapy (RT) for hepatocellular carcinoma (HCC) in patients with Child-Pugh classification B (CP-B). This study aimed to evaluate the treatment outcomes of fractionated conformal RT in HCC patients with CP-B. MATERIALS AND METHODS: We retrospectively reviewed the data of HCC patients with CP-B treated with RT between 2009 and 2014 at 13 institutions in Korea. HCC was diagnosed by the Korea guideline of 2009, and modern RT techniques were applied. Fraction size was ≤ 5 Gy and the biologically effective dose (BED) ≥ 40 Gy(10) (α/β = 10 Gy). A total of 184 patients were included in this study. RESULTS: Initial CP score was seven in 62.0% of patients, eight in 31.0%, and nine in 7.0%. Portal vein tumor thrombosis was present in 66.3% of patients. The BED ranged from 40.4 to 89.6 Gy(10) (median, 56.0 Gy(10)). After RT completion, 48.4% of patients underwent additional treatment. The median overall survival (OS) was 9.4 months. The local progression-free survival and OS rates at 1 year were 58.9% and 39.8%, respectively. In the multivariate analysis, non-classic radiation-induced liver disease (RILD) (p < 0.001) and additional treatment (p < 0.001) were the most significant prognostic factors of OS. Among 132 evaluable patients without progressive disease, 19.7% experienced non-classic RILD. Normal liver volume was the most predictive dosimetric parameter of non-classic RILD. CONCLUSION: Fractionated conformal RT showed favorable OS with a moderate risk non-classic RILD. The individual radiotherapy for CP-B could be cautiously applied weighing the survival benefits and the RILD risks.