The impact of acute kidney injury on frailty status in critical illness survivors—is there enough evidence?

Acute kidney injury (AKI) occurs in approximately 20% of hospitalized patients, and the incidence doubles in patients admitted to the intensive care units (ICUs) (1,2). AKI carries high morbidity, resource utilization and mortality, particularly in critically ill patients in whom mortality rates could be as high as 50% (3-5).