Among critically ill patients with Acute Kidney Injury (AKI), early Renal Replacement Therapy (RRT) compared with delayed initiation of RRT reduced mortality over the first 90 days. Further multicenter trials of this intervention are warranted. Among 231 patients (mean age, 67 years; men, 146 [63.2%]), all patients in the early group (n = 112) and 108 of 119 patients (90.8%) in the delayed group received RRT. The primary end point was mortality at 90 days after randomization. Secondary end points included 28- and 60-day mortality, clinical evidence of organ dysfunction, recovery of renal function, requirement of RRT after day 90, duration of renal support, and intensive care unit (ICU) and hospital length of stay.

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