Importance: No effective pharmaceutical agents have yet been identified to treat acute kidney injury after cardiac surgery.
Objective: To determine whether fenoldopam reduces the need for renal replacement therapy in critically ill cardiac surgery patients with acute kidney injury.
Design, Setting, And Participants: Multicenter, randomized, double-blind, placebo-controlled, parallel-group study from March 2008 to April 2013 in 19 cardiovascular intensive care units in Italy.