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Adv Chronic Kidney Dis. 2013 Jan;20(1):76-84. doi: 10.1053/j.ackd.2012.09.004.

Renal replacement therapy in acute kidney injury.

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VA Pittsburgh Healthcare System and University of Pittsburgh School of Medicine, Pittsburgh, PA 15240, USA.


Although the use of renal replacement therapy (RRT) to support critically ill patients with acute kidney injury (AKI) has become routine, many of the fundamental questions regarding optimal management of RRT remain. This review summarizes current evidence regarding the timing of initiation of RRT, the selection of the specific modality of RRT, and prescription of the intensity of therapy. Although absolute indications for initiating RRT-such as hyperkalemia and overt uremic symptoms-are well recognized, the optimal timing of therapy in patients without these indications continues to be a subject of debate. There does not appear to be a difference in either mortality or recovery of kidney function associated with the various modalities of RRT. Finally, providing higher doses of RRT is not associated with improved clinical outcomes.

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