Abstract
Purpose
The Barcelona Clinic Liver Cancer (BCLC) staging system has been recommended for prognostic prediction. However, prognosis is variable at different BCLC stages. We aimed to evaluate whether the radiographic tumor burden score (TBS) could be used to stratify prognosis in different BCLC stages.
Methods
Hepatocellular carcinoma (HCC) patients undergoing liver resection (LR) at BCLC-0, -A, or -B stage in our institution in 2007–2018 were divided into derivation and validation cohorts. Overall survival (OS) was analyzed according to the TBS and BCLC stage. TBS cutoff values for OS were determined with X-tile.
Results
Of the 749 patients in the derivation cohort, 138 (18.4%) had BCLC-0, 542 (72.3%) BCLC-A, and 69 (9.2%) BCLC-B HCC; 76 (10.1%) had a high TBS (> 7.9), 477 (63.7%) a medium TBS (2.6–7.9), and 196 (26.2%) a low TBS (< 2.6). OS worsened progressively with increasing TBS in the cohort (p < 0.001) and in BCLC-A (p = 0.04) and BCLC-B (p = 0.002) stages. Multivariate analysis showed that the TBS was associated with OS of patients with BCLC-A (medium vs. low TBS: hazard ratio [HR] = 2.390, 95% CI = 1.024–5.581, p = 0.04; high vs. low TBS: HR = 3.885, 95% CI = 1.443–10.456, p = 0.007) and BCLC-B (high vs. medium TBS: HR = 2.542, 95% CI = 1.077–6.002, p = 0.033) HCC. The TBS could also be used to stratify the OS of patients in the validation cohort (p < 0.001).
Conclusion
The TBS could be used to stratify the OS of the entire cohort and BCLC stages A and B of HCC patients undergoing LR.
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Data availability
All data is available.
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Acknowledgements
The authors thank Cancer Center, Kaohsiung Chang Gung Memorial Hospital for the provision of HCC registry data. The authors thank Chih-Yun Lin and Nien-Tzu Hsu and the Biostatistics Center, Kaohsiung Chang Gung Memorial Hospital for statistics work.
Funding
This study was supported by Grant CMRPG8L0181 from the Chang Gung Memorial Hospital-Kaohsiung Medical Center, Taiwan.
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Conception or design of the work: YHY, CCW. The acquisition, analysis, or interpretation of data: WFL, YWL, CCW, CCY, CCL. Drafted the work: YHY, WFL. Revised it critically for important intellectual content: CCW. Approved the version to be published: all authors. Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved: all authors.
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Supplementary Fig. 1
Flow chart of enrollment of the derivation cohort (PDF 77 kb)
Supplementary Fig. 2
Flow chart of enrollment of the validation cohort (PDF 75 kb)
Supplementary Fig. 3
Overall survival rate in the derivation cohort (PNG 45 kb)
Supplementary Fig. 4
Overall survival rate in the validation cohort (PNG 42 kb)
Supplementary Fig. 5
Distribution of the tumor burden score among the patients with and without recurrence in the derivation cohort (PNG 92 kb)
Supplementary Fig. 6
Distribution of the tumor burden score among the patients with and without recurrence in the validation cohort (PNG 62 kb)
Supplementary Fig. 7
Correlation between the tumor burden score and maximal tumor size in the derivation cohort (PNG 64 kb)
Supplementary Fig. 8
Correlation between the tumor burden score and maximal tumor size in the validation cohort (PNG 58 kb)
Supplementary Fig. 9
Distribution of the tumor burden score among the patients with different tumor numbers in the derivation cohort (PNG 81 kb)
Supplementary Fig. 10
Distribution of the tumor burden score among the patients with different tumor numbers in the validation cohort (PNG 59 kb)
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Li, WF., Liu, YW., Wang, CC. et al. Radiographic tumor burden score is useful for stratifying the overall survival of hepatocellular carcinoma patients undergoing resection at different Barcelona Clinic Liver Cancer stages. Langenbecks Arch Surg 408, 169 (2023). https://doi.org/10.1007/s00423-023-02869-6
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DOI: https://doi.org/10.1007/s00423-023-02869-6