The goal of this observational study is to evaluate when renal replacement therapy (RRT) can be safely discontinued in intensive care unit (ICU) patients with acute kidney injury (AKI). The main question it aims to answer is:
Can the UNDERSCORE predictive score accurately identify ICU patients with AKI who can successfully stop RRT without needing restart or experiencing early death?
Using routinely collected clinical data from the AP-HP Health Data Warehouse, the study will follow ICU patients with AKI treated with RRT to assess whether the UNDERSCORE score predicts successful RRT discontinuation within 7 days.