Abstract
Purpose
To develop an effective prognostic nomogram for patients with hepatocellular carcinoma (HCC) after thermal ablation.
Methods
A total of 772 patients with intrahepatic primary or recurrent HCC who underwent radiofrequency ablation or microwave ablation between March 2011 and October 2016 were included. 602 patients (mean age, 56.0 ± 11.9 years; 495 male/107 female) were included in the primary cohort to establish a prognostic nomogram. Significant prognostic factors for overall survival (OS) identified by Cox univariate and multivariate regression analyses were used to construct the nomogram. The remaining 170 patients (mean age, 55.9 ± 11.9 years; 145 male/25 female) were used to validate the predictive accuracy of the nomogram.
Results
During a mean follow-up period of 26 months (range 1–85 months), the median OS periods were 48.6 months and 44.0 months for the primary and validation cohorts. The 1-, 3-, and 5-year OS rates were 85.5%, 61.4%, and 43.3% in the primary cohort and 84.7%, 59.6%, and 43.3% in the prospective validation cohort, respectively. Multivariate analysis found that pre-ablation treatment, AFP, CEA, CA19-9, ALBI grade, tumor number, and tumor size (hazard ratio > 1, P < 0.05) were independent risk factors for OS. A nomogram was developed based on these seven variables. The calibration curve for predicting the probability of survival showed a good agreement between the nomogram and actual observation both in the primary (concrete index: 0.699) and validation cohorts (concrete index: 0.734).
Conclusions
This simple nomogram based on seven variables including ALBI grade offers personalized prognostic data for HCC patients after ablation.
Level of Evidence
Level 4, case series.
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Abbreviations
- ALBI:
-
Albumin–bilirubin
- HCC:
-
Hepatocellular carcinoma
- rHCC:
-
Recurrent hepatocellular carcinoma
- RFA:
-
Radiofrequency ablation
- MWA:
-
Microwave ablation
- BCLC:
-
Barcelona clinic liver cancer
- TNM:
-
Tumor-lymph node-metastasis
- CLIP:
-
Cancer of the Liver Italian Program
- CUPI:
-
The Chinese University Prognostic Index
- PALBI:
-
Platelet–albumin–bilirubin
- ALT:
-
Alanine aminotransferase
- AST:
-
Aspartate aminotransferase
- TB:
-
Total bilirubin
- ALB:
-
Serum albumin
- Scr:
-
Serum creatinine
- WBC:
-
White blood cell count
- PLT:
-
Platelet count
- INR:
-
International normalized ratio
- AFP:
-
Alpha fetoprotein
- CEA:
-
Carcinoembryonic antigen
- CA 19-9:
-
Carbohydrate Antigen 19-9
- C-index:
-
Concordance index
- OS:
-
Overall survival
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Acknowledgements
This work was supported in part by Goodwill Hessian Health Technology Co., of which Mingchen Zhao is a full-time employee.
Funding
This study was funded by the National Science and Technology Major Project (No. 2017ZX10203206-006-002).
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Ding, M., Zhao, X., Zhao, M. et al. Prognostic Nomogram for Patients with Hepatocellular Carcinoma After Thermal Ablation. Cardiovasc Intervent Radiol 43, 1621–1630 (2020). https://doi.org/10.1007/s00270-020-02617-z
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DOI: https://doi.org/10.1007/s00270-020-02617-z