Postoperative intubation time is associated with acute kidney injury in cardiac surgical patients.

The following variables that showed a highly significant statistical difference ( P <0.001) in the univariate analyses were entered a stepwise backward logistic regression model: age; Euroscore; preoperative plasma creatinine level; ScO2 minox ; type of surgery; duration of surgery; duration of cardiopulmonary bypass (CPB); lowest hematocrit during CPB; intra- and postoperative use of inotropic/vasoactive agents (noradrenaline, dobutamine, vasopressine); cumulative use of blood products; mean RPP within the first 8 hours after ICU admission, time to first extubation (hours), and reintubation.

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Patients with AKI were treated more frequently and with higher doses of inotropes and vasopressors, needed more blood products and showed a trend toward a higher use of synthetic colloids.

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