CONCLUSION
AKI, kidney injury, postoperative AKI
In the present study, a model for predicting persistent postoperative AKI in patients with normal baseline renal function who experienced AKI after cardiac surgery was developed and validated. This model can identify population at high risk of persistent AKI after cardiac surgery early, facilitate the re‐evaluation of medical regimen to avoid further damage after kidney injury, and provide individualized treatment strategies. In the future, efforts will be made to integrate the model into the existing electronic medical records system to make its clinical use more convenient.