Jacups, Susan P., Carter, Angus W., and Murray, Andrew (2020) Acute kidney injury in Indigenous intensive care patients. Australian Critical Care, 33 (5). pp. 452-457.

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Abstract

Background: Patients presenting to intensive care units (ICUs) report high rates of acute kidney injury (AKI) requiring renal replacement therapy (RRT). Globally, Indigenous populations report higher rates of renal disease than their non-Indigenous counterparts.

Objectives: This study reports the prevalence, presenting features, and outcomes of Indigenous ICU admissions with AKI (who require RRT) within an Australian ICU setting and compares these with those of Indigenous patients without AKI.

Method: A retrospective database review examined all Indigenous patients older than 18 years admitted to a regional Australian ICU between June 2013 and June 2016, excluding patients with chronic kidney disease requiring dialysis. We report patient demography, presenting clinical and physiological characteristics, ICU length of stay, hospital outcome, and renal requirements at three months after discharge, on Indigenous patients with AKI requiring RRT.

Results: AKI requiring RRT was identified in 15.9% of ICU Indigenous patients. On univariate analysis, it was found that these patients were older and had a higher body mass index, lower urine output, and higher levels of creatinine and urea upon presentation than patients who did not have AKI. Patients with AKI reported longer ICU stays and a higher mortality rate (30%, p < 0.05), and 10% of these required ongoing RRT at 3 months. Multivariate analysis found significant associations with AKI were only found for presenting urine outputs, urea and creatinine levels.

Conclusions: This study reports higher rates of AKI requiring RRT for Indigenous adults than non Indigenous adults, as has been previously published. Benefits arising from this study are as follows: these reported findings may initiate early targeted clinical management and can assist managing expectations, as some patients may require ongoing RRT after discharge.

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