Abstract: Objective: Evaluation of renal function (RF) is important for management of patients with non-ST elevation acute coronary syndrome (NSTE-ACS). Cystatin C, a sensitive marker of RF, appears to be also a marker of cardiovascular risk. Little is known regarding its predictive role in NSTE-ACS patients.Methods: We assessed 525 patients taking part in the “Systemic Inflammation Evaluation in patients with NSTE-ACS” (SIESTA) study. Patients were subdivided in quartiles according to cystatin...