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Acute Kidney Injury (AKI) is characterized by the sudden loss of renal function, diagnosed by an increase in creatinine levels and a reduction in urine output, persisting for up to 7 days. AKI is highly prevalent in intensive care units, predominantly affecting elderly patients with multiple organ failure, leading to high mortality rates and elevated costs 1. Around 5% of ICU-admitted patients receive renal replacement therapy (RRT), and in-hospital mortality tends to exceed 50%. Individuals discharged after an episode of AKI with RRT face a greater risk of long-term dialysis dependence and mortality compared to those without AKI 2, 3.An extensive retrospective cohort study, published in Critical Care in 2012 and conducted in Finland, revealed that over a nearly two-year period, spanning from January 2007 to December 2008, 6.8% of patients admitted to the ICU received Renal Replacement Therapy (RRT) due to acute kidney injury.
Kunii et al. (Mon,) studied this question.