MMP2 and acute kidney injury: = Acute kidney injury  = Coronary artery bypassgraft  = Cardiopulmonary bypass  = Central venouspressure  = Electrocardiogram  = Ejectionfraction  = Estimated glomerular filtration rate  =Glomerular filtration rate  = Mean arterial pressure  =N-acetylcysteine  = Neutrophil gelatinase associatedlipocalin  = Reactive oxygen species