• J Mårtensson, C-R Martling, M Bell, C Rimes-Stigare, and A Awad.
• Department of Anaesthesiology and Intensive Care, Karolinska University Hospital, Stockholm, Sweden. Claire.rimes-stigare@karolinska.se
• Acta Anaesthesiol Scand. 2012 Feb 1;56(2):138-46.

BackgroundAcute kidney injury (AKI) necessitating renal replacement therapy (RRT) is associated with high short-term mortality, relatively little however is known of the long-term outcome in these patients. This narrative review describes renal recovery, long-term mortality, and quality of life in RRT patients with acute kidney injury.MethodsA literature search using the PubMed search engine from the year 2000 to present with the MeSH terms 1) acute kidney injury, renal replacement therapy, prognosis, and 2) acute kidney injury, quality of life, prognosis, was performed, including studies addressing long-term outcome (over 60 days) in adults with AKI on RRT.ResultsAccording to inclusion criteria, twenty two studies were eligible. Outcome varied depending on AKI aetiology, setting, co-morbidity and pre-morbid renal function. Five-year-survival was between 15% and 35%, with dialysis dependence in less than 10% of survivors. Renal recovery, even if incomplete occurred during the first year. Quality of life assessment amongst survivors indicated moderate physical impairment and reduced mental health scores. A majority of patients returned to employment and self-sustainability and reported acceptable to good quality of life. Over 90% of patients indicated that they would undergo the same treatment again.Discussion And ConclusionsEarly initiation of treatment and fine-tuning of the RRT technique may improve outcome. Consensus regarding AKI definitions, renal function measurement and standardised follow-up regimens are required. Further long-term studies are needed.© 2011 The Authors Acta Anaesthesiologica Scandinavica © 2011 The Acta Anaesthesiologica Scandinavica Foundation.

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