MERCURI-2 reports that dapagliflozin cuts postoperative AKI after cardiac surgery, but the headline result is mostly a urine-output story, not a creatinine one. That matters: urine output after surgery is easily swayed by anesthesia, fluid shifts, vasopressors, and a diuretic drug in the mix. Until dapagliflozin shows it protects kidney function, not just urine output.
