Abstract
Background
Bacterial infection is one of the most frequent complications in acute-on-chronic liver failure (ACLF), which leads to high mortality. However, a specific prognostic model for ACLF patients with bacterial infection has not been well established.
Aim
To establish and validate a nomogram for predicting 30-day mortality of hepatitis B virus-related ACLF (HBV-ACLF) patients with bacterial infection.
Methods
A total of 513 ACLF patients for HBV reactivation were enrolled in the prospective cohort, and 224 patients with bacterial infection were for derivation. Independent predictors were identified using multivariate logistic model and then assembled into a nomogram to predict 30-day mortality. The performance of the nomogram was assessed based on its calibration, discrimination and clinical utility in a retrospective cohort of 192 HBV-ACLF patients with bacterial infection.
Results
Age, total bilirubin, lactate dehydrogenase, international normalized ratio and soluble interleukin-2 receptor were shown to be independent risk factors for 30-day mortality of HBV-ACLF patients with bacterial infection and the nomogram was constructed. The nomogram showed a good calibration and discrimination in the derivation cohort, with an area under the receiver operating characteristic curve (AUC) of 0.883. Application of the nomogram in the validation cohort also showed a good calibration and discrimination, with the AUC of 0.852. Decision curve analysis confirmed the clinical utility of the nomogram.
Conclusion
The nomogram was established and validated for predicting 30-day mortality of HBV-ACLF patients with bacterial infection, which may facilitate optimal therapeutic strategies to improve the prognosis of these patients.
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Availability of data
We declared that data described in the manuscript would be freely available to any scientist wishing to use them for non-commercial purposes.
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Funding
This study was funded by the National Thirteenth “Five Years” Project in Science and Technology of China (2017ZX10202201, 2018ZX10302-206).
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All authors were involved in the critical revision of the manuscript. TC and QN contributed to the study conception and design. ZZ, ZY, QC, XH, ML, YL, KM, TL, MZ enrolled patients and collected clinical data. ZZ analyzed clinical data and drafted the manuscript. XL had contributions to the revision of the manuscript in discussion, data re-evaluation and presentation, and manuscript edition. All authors approved the final version of the manuscript, including the authorship list.
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Data of all patients were acquired from the electronic medical records system and analyzed anonymously according to the Declaration of Helsinki of 1975, as revised in 2008. A written informed consent of patient was acquired based on registered clinical trial (NCT03362632) in the prospective derivation cohort. However, the patient informed consent was waived in the retrospective validation cohort according to approved protocol by the Ethics Committee of Tongji Hospital.
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Zhang, Z., Yang, Z., Cheng, Q. et al. Establishment and validation of a prognostic model for hepatitis B virus‑related acute-on-chronic liver failure patients with bacterial infection. Hepatol Int 16, 38–47 (2022). https://doi.org/10.1007/s12072-021-10268-6
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DOI: https://doi.org/10.1007/s12072-021-10268-6