Low applicability of the six-and-twelve score in hepatocellular carcinoma treated with drug-eluting beads transarterial chemoembolization
- 1 January 2021
- journal article
- research article
- Published by Sociedad Espanola de Patologia Digestiva (SEPD) in Revista Española de Enfermedades Digestivas
- Vol. 114 (1), 28-34
- https://doi.org/10.17235/reed.2021.7696/2020
Abstract
Objective: the effectiveness of transarterial chemoembolization (TACE) in hepatocellular carcinoma (HCC) depends on the selection of suitable patients. The "six-and-twelve score" distinguishes three groups of ideal patients with different overall survival, based on the sum of the number and size of tumors. This may impact on clinical practice and trial design. The aim of this study was to assess the reproducibility and prognostic value of the model in western patients treated with drug-eluting beads (DEB)-TACE. Methods: an observational, retrospective, unicentric study with consecutive compensated patients treated with DEBTACE from October 2008 to October 2017. Exclusion criteria were Child-Pugh >= 8 and DEB-TACE used as a bridge to liver transplantation. Results: a total of 225 consecutive HCC patients were included; BCLC-0/A, n = 131 (single nodules > 5, n = 29) and BCLC-B, n = 94. Median overall survival (OS) was 27 months (95 % CI, 23.8-30.2). OS was different between BCLC-0/A and BCLC-B: 30 vs. 24 months (p = 0.03), Child-Pugh A5 vs. A6-B7: 30 vs. 27 months (p = 0.003). ``Six-and-twelve score" groups discriminated OS: group 1, n = 123, 32 months (95 % CI, 27.5-63.5); group 2, n = 101, 24 months (95% CI, 19.6-28.4); and group 3, n = 1, 27 months (p = 0.024). When comparing the three scores, the "six-and-twelve score" showed the best discrimination power: C-index, 0.603; Akaike's information criterion (AIC), 1.642; likelihood ratio test (LRT), 16.21. Conclusion: The "six-and-twelve score" is a prognostic tool for patients with HCC treated with DEB-TACE. However, few patients were included in the third group (score > 12) and no differences were observed with BCLC, therefore applicability is limited.Keywords
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