Year in review 2013: Critical Care - nephrology

We review original research in the field of critical care nephrology accepted or published in 2013 in Critical Care and, when considered relevant or linked to these studies, in other journals. Three main topics have been identified and are discussed for a rapid overview: acute kidney injury (diagnosis, risk factors and outcome); timing and modality of renal replacement therapy; and extracorporeal membrane oxygenation and renal dysfunction.