Comparação de Diferentes Fórmulas de Taxa de Filtração Glomerular (TFG) na Predição da Gravidade e Extensão da Doença Arterial Coronariana

BACKGROUND: Chronic kidney disease (CKD) is an established risk factor for coronary artery disease (CAD), displaying a linear relationship with glomerular filtration rate (GFR). The prognostic role of the different formulas for the estimation of GFR is still debated. OBJECTIVE: To evaluate the impact of GFR calculation in the prediction of angiographically assessed CAD. METHODS: In consecutive patients undergoing coronary angiography, GFR was assessed at admission with the formulas Cockroft-Gault, Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI), and Modification of Diet in Renal Disease Study (MDRD). A 2-sided p-value < 0.05 was considered statistically significant. RESULTS: Among 1742 patients, 79.8% displayed CAD. No difference in the mean values of GFR was observed in patients with and without CAD with the three different GFR formulas. We observed a significant association between severe CAD and GFR, by Cockcroft Gault (26.6% vs 35% vs 36.9%, p