Prognostic assessment using a new substaging system for Barcelona clinic liver cancer stage C hepatocellular carcinoma: A nationwide study

Dong won Lee, Hyung Joon Yim, Yeon Seok Seo, Seong Kyun Na, Seung Young Kim, Sang Jun Suh, Jong Jin Hyun, Sung Woo Jung, Young Kul Jung, Ja Seol Koo, Ji Hoon Kim, Jong Eun Yeon, Sang Woo Lee, Kwan Soo Byun, Soon Ho Um

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Aim & Background: Advanced hepatocellular carcinoma (HCC) (Barcelona clinic liver cancer [BCLC] stage C) needs subclassification to more accurately predict survival. This study aims to establish a substaging system of BCLC stage C HCC patients for accurate prognosis. Methods: Data from 564 patients with newly diagnosed BCLC stage C HCC from three tertiary-care hospitals affiliated with the Korea University (training set) were assessed retrospectively. Variables affecting overall survival (OS) were analysed, and patients were substaged according to the number of prognostic factors they fulfilled. The substaging system was validated using a nationwide database from the Korean Liver Cancer Association (validation set; n = 742). Results: In the training set, tumour factors such as tumour burden ≥10 cm, major portal vein invasion and distant metastasis, as well as underlying liver function, were independently associated with OS. BCLC stage C was classified into four substages (C1-4) according to the number of prognostic factors. Substages C1, C2, C3 and C4 showed a median OS of 17.50 months (95% confidence interval [CI], 8.57-26.43), 10.13 months (95% CI, 8.17-12.09), 4.20 months (95% CI, 3.42-4.98), and 2.90 months (95% CI, 2.34-3.46) respectively (P < 0.05). This substaging system also had good discriminative ability in predicting survival in the validation set. In addition, it was considered that the BCLC substaging is better than Hong Kong liver cancer substaging in predicting the OS for patients with advanced HCC. Conclusion: Our substaging for BCLC stage C might help predict patients' prognosis better.

    Original languageEnglish
    Pages (from-to)1109-1119
    Number of pages11
    JournalLiver International
    Volume39
    Issue number6
    DOIs
    Publication statusPublished - 2019 Jun

    Keywords

    • hepatocellular carcinoma
    • prognosis
    • stage
    • substaging
    • treatment

    ASJC Scopus subject areas

    • Hepatology

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