Abstract
Background
Hepatolithiasis is associated with the development of intrahepatic cholangiocarcinoma (ICC). This study sought to investigate risk factors of ICC for hepatolithiasis after partial hepatectomy (PH) and to develop a model for predicting ICC risk.
Methods
Data on consecutive patients who underwent PH for hepatolithiasis at the Eastern Hepatobiliary Surgery Hospital between January 2009 and December 2011 were reviewed. Independent risk factors of ICC identified by Cox regression model were used to develop a nomogram in predicting ICC after PH for hepatolithiasis.
Results
Of 2056 patients, 168 developed ICC at a median follow-up of 7.2 years. The cumulative incidences of ICC at 3, 5, and 8 years after PH for hepatolithiasis were 3.0%, 6.5%, and 12.9%, respectively. Independent risk factors of ICC were identified to be a long duration of hepatolithiasis-related symptoms (hazard ratio, 1.088 [95% confidence interval, 1.057–1.120]), metabolic syndrome (2.036 [1.210–3.425]), a high neutrophil-to-lymphocyte ratio (1.250 [1.009–2.816] for 3–5 vs ≤3; 1.538 [1.048–2.069] for ≥5 vs ≤3), hepatic atrophy (1.711 [1.189–2.462]), segmental intensity differences (1.513 [1.052–2.176]), persistent biliary strictures (2.825 [1.480–5.391]), and residual stone disease (2.293 [1.511–3.481]). By incorporating these factors, a constructed nomogram showed a concordance index of 0.721 to predict ICC. The calibration plots demonstrated good agreement between observed and predicted morbidities. The optimal cutoff point for the nomogram was 48 in differentiating between high and low-risk of ICC.
Conclusions
A nomogram for predicting ICC after PH for hepatolithiasis was constructed based on risk factors of developing ICC. Patients with a nomogram point of ≥48 were predicted to have a high risk of ICC.
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Abbreviations
- CHD:
-
Common hepatic duct
- CBD:
-
Common bile duct
- ICC:
-
Intrahepatic cholangiocarcinoma
- PH:
-
Partial hepatectomy
- CA19-9:
-
Carbohydrate antigen 19-9
- CEA:
-
Carcinoembryonic antigen
- MRI:
-
Magnetic resonance imaging
- CT:
-
Computed tomography
- MetS:
-
Metabolic syndrome
- HBsAg:
-
Hepatitis B surface antigen
- SIDs:
-
Segmental intensity differences
- IQR:
-
Interquartile range
- ROC:
-
Receiver operating characteristic
- CI:
-
Confidence interval
- NLR:
-
Neutrophil-to-lymphocyte ratio
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Funding
This study was supported by the State Key Project on Infectious Diseases of China (2018ZX10723204 to Dr. Shen), and the Shanghai Health Commission Scientific Research Fund (2018BR34 to Dr. Xia).
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Authors and Affiliations
Contributions
Concept and design: Feng Shen, Yong Xia, Jun Li, and Hao Shen.
Collection, analysis, and interpretation of data: Hao Shen, Shichao Zhang, Lei Huo, Kui Wang, and Linhe Gan.
Statistical analysis: Shichao Zhang, Can Chen, Jun Li, and Hao Shen.
Drafting of the manuscript: Hao Shen, Yong Xia, Can Chen, Kui Wang, Feng Shen, and Wan Yee Lau.
Critical revision of the manuscript for important intellectual content: Timothy M Pawlik, Wan Yee Lau, Feng Shen, and Mengchao Wu.
Obtained funding: Feng Shen and Yong Xia.
Study supervision: Feng Shen and Mengchao Wu.
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The study was conducted in compliance with the Declaration of Helsinki (1975) and its amendments and approved by the Institutional Ethics Committee of the EHBH. All patients provided informed consent for both the operation and for their data to be used for clinical research purposes.
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The authors declare no competing interests.
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Shen, H., Zhang, S., Xia, Y. et al. A Nomogram in Predicting Risks of Intrahepatic Cholangiocarcinoma After Partial Hepatectomy for Hepatolithiasis. J Gastrointest Surg 25, 2258–2267 (2021). https://doi.org/10.1007/s11605-021-04947-w
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DOI: https://doi.org/10.1007/s11605-021-04947-w