Abstract
Purpose
Systemic inflammation score (SIS) is a novel prognostic score (0, 1, or 2) for various cancers, based on preoperative serum albumin level and lymphocyte-to-monocyte ratio (LMR); modified SIS (mSIS) uses a different LMR cutoff value and was thought to be a more accurate predictor for cancer prognosis. Here, we assessed the prognostic value of SIS and mSIS in patients who receive hepatic resection for hepatocellular carcinoma (HCC).
Methods
We retrospectively evaluated SIS and mSIS of 314 patients after hepatic resection for HCC, against their clinicopathological factors and outcomes, using receiver operating characteristics (ROC) analysis over time.
Results
Among patients with preoperative SIS 2, significantly more HCC specimens were poorly differentiated (P = 0.0281), larger (P = 0.0006), and had more microscopic vascular invasion (P = 0.0136) than the SIS 0–1 group; the mSIS 2 group also had significantly larger tumors (P = 0.0039) than the mSIS 0–1 group. In ROC analysis, SIS was a better predictor of overall survival (OS) and recurrence-free survival (RFS) than mSIS. The SIS 2 group had shorter OS (P = 0.0015) and RFS (P = 0.0065) than other patients. In multivariate analysis, SIS 2 was an independent risk factor for shorter OS (hazard ratio (HR) 1.53, P = 0.0497) and RFS (HR 1.58, P = 0.0053).
Conclusion
SIS is superior to mSIS in predicting prognosis of patients with HCC. mSIS is not a great predictor of prognosis in resected HCC.
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Abbreviations
- AFP:
-
alpha-fetoprotein
- DCP:
-
des-gamma-carboxyprothrombin
- HBs Ag:
-
hepatitis B surface antigen
- HCC:
-
hepatocellular carcinoma
- HCV Ab:
-
hepatitis C virus antibody
- ICGR15 :
-
indocyanine green retention rate at 15 min
- IQR:
-
interquartile range
- LMR:
-
lymphocyte-to-monocyte ratio
- mSIS:
-
modified systemic inflammation score
- NLR:
-
neutrophil-to-lymphocyte ratio
- OS:
-
overall survival
- RFS:
-
recurrence-free survival
- ROC:
-
receiver operating characteristic
- SIS:
-
systemic inflammation score
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Acknowledgements
We thank Marla Brunker, from Edanz Group (www.edanzediting.com/ac), for editing a draft of this manuscript.
Funding
This study was supported by JSPS KAKENHI, a Grant-in-Aid from the Ministry of Health, Labour and Welfare, Japan (Numbers JP-19K09198). The funding sources had no role in the collection, analysis, or interpretation of the data, or in the decision to submit the article for publication.
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S. Inokuchi participated in the writing of the manuscript. S. Inokuchi, S. Itoh, and T. Yoshizumi participated in the study conception and design. S. Inokuchi, A. Morinaga, T. Toshima, K. Takeishi, Y. Nagao, N. Harada, and T. Ikegami participated in acquisition, analysis, and interpretation of data for the work. S. Itoh and M. Shimokawa participated in drafting the work and revising critically for important intellectual content. M. Mori participated in the review of the manuscript and final approval.
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The study was approved by the ethics committee of our hospital, in accordance with ethical guidelines of the Japanese Government (approval number: 2019-234).
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Supplementary Information
Supplementary Figure S1.
Patients with higher modified systemic inflammation score (mSIS) had shorter overall survival (OS) and recurrence-free survival (RFS). Kaplan–Meier analyses for RFS (a) and OS (b) of hepatocellular carcinoma patients by mSIS. (PNG 864 kb)
Supplementary Figure S2.
Patients whose modified systemic inflammation score (mSIS) were 2 had significantly shorter overall survival (OS) and recurrence-free survival (RFS) than those whose mSIS was 0 or 1. Kaplan–Meier analyses for RFS (a) and OS (b) of patients with hepatocellular carcinoma by mSIS value (0 or 1 vs 2). (PNG 880 kb)
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Inokuchi, S., Itoh, S., Yoshizumi, T. et al. Prognostic significance of systemic inflammation score in patients who undergo hepatic resection for hepatocellular carcinoma. Langenbecks Arch Surg 406, 773–779 (2021). https://doi.org/10.1007/s00423-021-02103-1
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DOI: https://doi.org/10.1007/s00423-021-02103-1