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A Proposal for Modification of the Barcelona Clinic Liver Cancer Staging System Considering the Prognostic Implication of Performance Status

Authors
Cho, HJ  | Kim, SS  | Kang, SY | Yang, MJ  | Noh, CK  | Hwang, JC  | Lim, SG  | Shin, SJ  | Lee, KM  | Yoo, BM  | Lee, KJ  | Kim, JH  | Cho, SW | Cheong, JY  | Korean Liver Cancer Association
Citation
Gut and liver, 13(5). : 557-568, 2019
Journal Title
Gut and liver
ISSN
1976-22832005-1212
Abstract
BACKGROUND/AIMS: Barcelona Clinic Liver Cancer (BCLC) C stage demonstrates considerable heterogeneity because it includes patients with either symptomatic tumors (performance status [PS], 1-2) or with an invasive tumoral pattern reflected by the presence of vascular invasion (VI) or extrahepatic spread (EHS). This study aimed to derive a more relevant staging system by modification of the BCLC system considering the prognostic implication of PS.
METHODS: A total of 7,501 subjects who were registered in the Korean multicenter hepatocellular carcinoma (HCC) registry database from 2008 to 2013 were analyzed. The relative goodness-of-fit between staging systems was compared using the Akaike information criterion (AIC) and integrated area under the curve (IAUC). Three modified BCLC (m-BCLC) systems (#1, #2, and #3) were devised by reducing the role of PS.
RESULTS: As a result, the BCLC C stage, which includes patients with PS 1-2 without VI/EHS, was reassigned to stage 0, A, or B according to their tumor burden in the m-BCLC #2 model. This model was identified as the most explanatory and desirable model for HCC staging by demonstrating the smallest AIC (AIC=70,088.01) and the largest IAUC (IAUC=0.722), while the original BCLC showed the largest AIC (AIC=70,697.17) and the smallest IAUC (IAUC=0.705). The m-BCLC #2 stage C was further subclassified into C1, C2, C3, and C4 according to the Child-Pugh score, PS, presence of EHS, and tumor extent. The C1 to C4 subgroups showed significantly different overall survival distribution between groups (p<0.001).
CONCLUSIONS: An accurate and relevant staging system for patients with HCC was derived though modification of the BCLC system based on PS.
Keywords

MeSH

DOI
10.5009/gnl18444
PMID
31023007
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Gastroenterology
Ajou Authors
김, 순선  |  김, 진홍  |  노, 충균  |  신, 성재  |  양, 민재  |  유, 병무  |  이, 광재  |  이, 기명  |  임, 선교  |  정, 재연  |  조, 효정  |  황, 재철
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