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Journal of Investigative Medicine:
doi: 10.231/JIM.0b013e3182321471
Original Articles

Acute Kidney Injury and Chronic Kidney Disease in Hospitalized Patients With Cirrhosis

Warner, Nafisseh Sirjani ScM*; Cuthbert, Jennifer A. MD*; Bhore, Rafia PhD; Rockey, Don C. MD*

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Background: Renal dysfunction is a common and potentially life-threatening complication in hospitalized patients with cirrhosis.

Aims: To determine the prevalence, cause, and outcome of patients with cirrhosis and acute kidney injury (AKI) and/or chronic kidney disease (CKD).

Methods: This retrospective analysis examined hospital records of 152 consecutive patients with cirrhosis and creatinine levels of 1.5 mg/dL or greater. Multiple clinical and laboratory variables were abstracted for each subject. Precise definitions were used to define cirrhosis and etiologies of renal dysfunction. Univariate and multivariable logistic regression analyses were performed to identify features with prognostic value for hospital mortality.

Results: The most common type of renal dysfunction was AKI, present in 107 patients (70%). Acute kidney injury plus CKD was found in 26 patients (17%), and CKD alone was present in 19 patients (13%). Prerenal azotemia was the most common cause of AKI (69%), often occurring secondary to gastrointestinal hemorrhage. The overall mortality for the cohort was 31%, with the highest mortality occurring in patients with type 1 hepatorenal syndrome (HRS) (11/14, 79%). We were unable to identify any patient meeting diagnostic criteria for type 2 HRS. The development of AKI on preexisting CKD did not infer worse prognosis than AKI alone. The presence of upper gastrointestinal bleeding, bacteremia, and HRS-1 predicted mortality.

Conclusions: Both AKI and CKD are common in hospitalized patients with cirrhosis, often occurring simultaneously. Type 2 HRS was not identified, suggesting that its diagnostic criteria may need reevaluation or that this syndrome may not represent a unique functional kidney disorder.

© 2011 American Federation for Medical Research


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