Brazilian Journal of Anesthesiology
Brazilian Journal of Anesthesiology
Clinical Research

Association between acute kidney injury and mortality after successful cardiopulmonary resuscitation: a retrospective observational study

Ender Para, Mustafa Azizoğlu, Aslınur Sagün, Gülhan Orekici Temel, Handan Birbicer

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Background and objectives
Acute Kidney Injury (AKI) affect mortality and morbidity in critically ill patients. There have been few studies examining the prevalence of AKI and mortality after successful cardiopulmonary resuscitation. In the present study, we investigated the association between AKI and mortality in post-cardiac arrest patients admitted to the Intensive Care Unit (ICU).

Our retrospective analysis included 109 patients, admitted to the ICU following successful cardiopulmonary resuscitation between 2014 and 2016. We compared two scoring systems to estimate mortality.

Results and discussion
AKI were diagnosed in 46.7% (n = 51) of the patients based on the RIFLE criteria and 66.1% (n = 72) using the KDIGO. Mortality rate was significantly higher among patients with AKI diagnosed according to the RIFLE criteria (p =  0.012) and those with AKI diagnosed using KDIGO criteria (p =  0.003). Receiver Operating Characteristic (ROC) analysis showed that both scoring systems were able to successfully detect mortality (Area under the ROC curve = 0.693 for RIFLE and 0.731 for KDIGO).

AKI increases mortality and morbidity rates after cardiac arrest. Although more renal injury and mortality were detected with KDIGO, the sensitivity and specificity of both scoring systems were similar in predicting mortality in patients with Return of Spontaneous Circulation (ROSC).


Acute kidney injury;  Post-cardiac arrest;  RIFLE;  KDIGO
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Braz J Anesthesiol

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