Vascular Adhesion Protein-1 Is Associated With Acute Kidney Injury in High-Risk Patients After Cardiac Surgery

BACKGROUND: Acute kidney injury is a common complication after cardiac surgery, with a high impact on morbidity and mortality. Vascular adhesion protein-1 is involved in inflammation, which, in turn, is part of the development of acute kidney injury after cardiac surgery. METHODS: In this ancillary study to the RENal effects of Remote Ischemic Preconditioning in cardiac surgery trial, we investigated whether vascular adhesion protein-1 might be associated with the development of acute kidney injury in high-risk patients after cardiac surgery. In total, 114 patients were included in this data set. Acute kidney injury was defined by the Kidney Disease: Improving Global Outcomes criteria serum creatinine and/or urine output. Vascular adhesion protein-1 concentrations were measured at baseline (before surgery), 4 hours, and 12 hours after cardiopulmonary bypass. RESULTS: Vascular adhesion protein-1 levels at 12 hours were significantly higher in patients with acute kidney injury (no acute kidney injury, 271 ng/mL [Q1, Q3, 179, 364 ng/mL] versus acute kidney injury, 384 ng/mL [Q1, Q3, 311, 478 ng/mL]; P 99 ng/mL showed a higher occurrence rate of acute kidney injury (acute kidney injury, 78.6% versus no acute kidney injury, 31.5%; P

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