Atherosclerosis · 2009
Plasma cystatin C for prediction of 1-year cardiac events in Mediterranean patients with non-ST elevation acute coronary syndrome.
СтатьяМногоцентровое исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Taglieri Nevio, Fernandez-Berges Daniel J, Koenig Wolfgang, Consuegra-Sanchez Luciano, Fernandez José Maria Cruz, Robles Nicolas Roberto, Sánchez Pedro Luis, Beiras Alfonso Castro, Orbe Pedro Maria Montes, Kaski Juan Carlos, SIESTA Investigators
Аннотация
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 C plasma concentrations (mg/L), i.e., Q1<0.81; Q2=0.81-0.92; Q3=0.93-1.10; Q4>or=1.11. Glomerular filtration rate (eGFR) was estimated using the modification of diet in renal disease (MDRD) equation. The study end-point was the composite of cardiac death, non-fatal myocardial infarction and unstable angina at 1-year follow up.
RESULTS: Few patients (0.8%) had severely impaired RF (MDRD<30ml/min/1.73m(2)). 157 patients reached (30%) the study end-point. Patients in Q3 and Q4 showed a higher cumulative probability of cardiac events compared to patients in the lowest quartile. On multivariable analysis, patients in Q3 and Q4 had an increased incidence of cardiac events (adjusted HR=1.57 95%CI 1.04-2.49; p=0.036). Patients with TIMI risk score >or=3 or in-hospital heart failure were also at higher risk for acute cardiac events. Conventional markers of RF, i.e., serum creatinine and eGRF, were not predictors for the study end-point.
CONCLUSIONS: Increased levels of cystatin C were an independent predictor of cardiac events at 1-year follow up in this contemporary series of Mediterranean patients with NSTE-ACS.
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 C plasma concentrations (mg/L), i.e., Q1<0.81; Q2=0.81-0.92; Q3=0.93-1.10; Q4>or=1.11. Glomerular filtration rate (eGFR) was estimated using the modification of diet in renal disease (MDRD) equation. The study end-point was the composite of cardiac death, non-fatal myocardial infarction and unstable angina at 1-year follow up.
RESULTS: Few patients (0.8%) had severely impaired RF (MDRD<30ml/min/1.73m(2)). 157 patients reached (30%) the study end-point. Patients in Q3 and Q4 showed a higher cumulative probability of cardiac events compared to patients in the lowest quartile. On multivariable analysis, patients in Q3 and Q4 had an increased incidence of cardiac events (adjusted HR=1.57 95%CI 1.04-2.49; p=0.036). Patients with TIMI risk score >or=3 or in-hospital heart failure were also at higher risk for acute cardiac events. Conventional markers of RF, i.e., serum creatinine and eGRF, were not predictors for the study end-point.
CONCLUSIONS: Increased levels of cystatin C were an independent predictor of cardiac events at 1-year follow up in this contemporary series of Mediterranean patients with NSTE-ACS.