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. 2013:2013:479730.
doi: 10.1155/2013/479730. Epub 2013 Mar 21.

Epidemiology of acute kidney injury in the intensive care unit

James Case  1 , Supriya Khan, Raeesa Khalid, Akram Khan
Affiliations

Epidemiology of acute kidney injury in the intensive care unit

James Case et al. Crit Care Res Pract. 2013.

Abstract

The incidence of acute kidney injury (AKI) in the intensive care unit (ICU) has increased during the past decade due to increased acuity as well as increased recognition. Early epidemiology studies were confounded by erratic definitions of AKI until recent consensus guidelines (RIFLE and AKIN) standardized its definition. This paper discusses the incidence of AKI in the ICU with focuses on specific patient populations. The overall incidence of AKI in ICU patients ranges from 20% to 50% with lower incidence seen in elective surgical patients and higher incidence in sepsis patients. The incidence of contrast-induced AKI is less (11.5%-19% of all admissions) than seen in the ICU population at large. AKI represents a significant risk factor for mortality and can be associated with mortality greater than 50%.

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