Machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkers

PurposeTo establish novel prediction models for predicting acute kidney injury (AKI) after cardiac surgery based on early postoperative biomarkers.Patients and methodsThis study enrolled patients who underwent cardiac surgery in a Chinese tertiary cardiac center and consisted of a discovery cohort (...

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Main Authors: Rui Fan, Wei Qin, Hao Zhang, Lichun Guan, Wuwei Wang, Jian Li, Wen Chen, Fuhua Huang, Hang Zhang, Xin Chen
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-02-01
Series:Frontiers in Surgery
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fsurg.2023.1048431/full
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author Rui Fan
Rui Fan
Wei Qin
Hao Zhang
Lichun Guan
Wuwei Wang
Jian Li
Wen Chen
Fuhua Huang
Hang Zhang
Xin Chen
Xin Chen
author_facet Rui Fan
Rui Fan
Wei Qin
Hao Zhang
Lichun Guan
Wuwei Wang
Jian Li
Wen Chen
Fuhua Huang
Hang Zhang
Xin Chen
Xin Chen
author_sort Rui Fan
collection DOAJ
description PurposeTo establish novel prediction models for predicting acute kidney injury (AKI) after cardiac surgery based on early postoperative biomarkers.Patients and methodsThis study enrolled patients who underwent cardiac surgery in a Chinese tertiary cardiac center and consisted of a discovery cohort (n = 452, from November 2018 to June 2019) and a validation cohort (n = 326, from December 2019 to May 2020). 43 biomarkers were screened using the least absolute shrinkage and selection operator and logistic regression to construct a nomogram model. Three tree-based machine learning models were also established: eXtreme Gradient Boosting (XGBoost), random forest (RF) and deep forest (DF). Model performance was accessed using area under the receiver operating characteristic curve (AUC). AKI was defined according to the Kidney Disease Improving Global Outcomes criteria.ResultsFive biomarkers were identified as independent predictors of AKI and were included in the nomogram: soluble ST2 (sST2), N terminal pro-brain natriuretic peptide (NT-proBNP), heart-type fatty acid binding protein (H-FABP), lactic dehydrogenase (LDH), and uric acid (UA). In the validation cohort, the nomogram achieved good discrimination, with AUC of 0.834. The machine learning models also exhibited adequate discrimination, with AUC of 0.856, 0.850, and 0.836 for DF, RF, and XGBoost, respectively. Both nomogram and machine learning models had well calibrated. The AUC of sST2, NT-proBNP, H-FABP, LDH, and UA to discriminate AKI were 0.670, 0.713, 0.725, 0.704, and 0.749, respectively. In addition, all of these biomarkers were significantly correlated with AKI after adjusting clinical confounders (odds ratio and 95% confidence interval of the third vs. the first tertile: sST2, 3.55 [2.34–5.49], NT-proBNP, 5.50 [3.54–8.71], H-FABP, 6.64 [4.11–11.06], LDH, 7.47 [4.54–12.64], and UA, 8.93 [5.46–15.06]).ConclusionOur study provides a series of novel predictive models and five biomarkers for enhancing the risk stratification of AKI after cardiac surgery.
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spelling doaj.art-2798e2d58b8d49b0b8a14c5cbe9e7d812023-02-07T06:24:41ZengFrontiers Media S.A.Frontiers in Surgery2296-875X2023-02-011010.3389/fsurg.2023.10484311048431Machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkersRui Fan0Rui Fan1Wei Qin2Hao Zhang3Lichun Guan4Wuwei Wang5Jian Li6Wen Chen7Fuhua Huang8Hang Zhang9Xin Chen10Xin Chen11School of Medicine, Southeast University, Nanjing, ChinaDepartment of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Nephrology, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, ChinaDepartment of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, ChinaSchool of Medicine, Southeast University, Nanjing, ChinaDepartment of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaPurposeTo establish novel prediction models for predicting acute kidney injury (AKI) after cardiac surgery based on early postoperative biomarkers.Patients and methodsThis study enrolled patients who underwent cardiac surgery in a Chinese tertiary cardiac center and consisted of a discovery cohort (n = 452, from November 2018 to June 2019) and a validation cohort (n = 326, from December 2019 to May 2020). 43 biomarkers were screened using the least absolute shrinkage and selection operator and logistic regression to construct a nomogram model. Three tree-based machine learning models were also established: eXtreme Gradient Boosting (XGBoost), random forest (RF) and deep forest (DF). Model performance was accessed using area under the receiver operating characteristic curve (AUC). AKI was defined according to the Kidney Disease Improving Global Outcomes criteria.ResultsFive biomarkers were identified as independent predictors of AKI and were included in the nomogram: soluble ST2 (sST2), N terminal pro-brain natriuretic peptide (NT-proBNP), heart-type fatty acid binding protein (H-FABP), lactic dehydrogenase (LDH), and uric acid (UA). In the validation cohort, the nomogram achieved good discrimination, with AUC of 0.834. The machine learning models also exhibited adequate discrimination, with AUC of 0.856, 0.850, and 0.836 for DF, RF, and XGBoost, respectively. Both nomogram and machine learning models had well calibrated. The AUC of sST2, NT-proBNP, H-FABP, LDH, and UA to discriminate AKI were 0.670, 0.713, 0.725, 0.704, and 0.749, respectively. In addition, all of these biomarkers were significantly correlated with AKI after adjusting clinical confounders (odds ratio and 95% confidence interval of the third vs. the first tertile: sST2, 3.55 [2.34–5.49], NT-proBNP, 5.50 [3.54–8.71], H-FABP, 6.64 [4.11–11.06], LDH, 7.47 [4.54–12.64], and UA, 8.93 [5.46–15.06]).ConclusionOur study provides a series of novel predictive models and five biomarkers for enhancing the risk stratification of AKI after cardiac surgery.https://www.frontiersin.org/articles/10.3389/fsurg.2023.1048431/fullacute kidney injurycardiac surgerybiomarkernomogrammachine learningrandom forest
spellingShingle Rui Fan
Rui Fan
Wei Qin
Hao Zhang
Lichun Guan
Wuwei Wang
Jian Li
Wen Chen
Fuhua Huang
Hang Zhang
Xin Chen
Xin Chen
Machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkers
Frontiers in Surgery
acute kidney injury
cardiac surgery
biomarker
nomogram
machine learning
random forest
title Machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkers
title_full Machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkers
title_fullStr Machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkers
title_full_unstemmed Machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkers
title_short Machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkers
title_sort machine learning in the prediction of cardiac surgery associated acute kidney injury with early postoperative biomarkers
topic acute kidney injury
cardiac surgery
biomarker
nomogram
machine learning
random forest
url https://www.frontiersin.org/articles/10.3389/fsurg.2023.1048431/full
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