Abstract

AYMARD, Adrián; VANDEN RYN, Roxana; ARANDA, Claudio  and  GRUPO ERC-ALAC. Comparison of formulas for the estimation of glomerular filtration: correlation and clinical implication. Acta bioquím. clín. latinoam. [online]. 2018, vol.52, n.3, pp.283-291. ISSN 0325-2957.

Chronic Kidney disease (CKD) is an important public health problem which is associated to an increase in mortality. An important diagnostic tool is the estimated glomerular filtration rate (GFR). The aims of this study were to compare GFR according to two different formulas: MDRD-4 and CKD-EPI, in order to evaluate its performance in clinically relevant values and to display occult chronic kidney disease (OCKD) according to each of the equations reviewed to classify the studied population into different stages of CKD. A total of 2526 patients with CKD-associated risk factors were analyzed. Mean of the results with both formulas were: 84.5 mL/min/1.73 m² for MDRD-4 and 90.9 mL/min/1.73 m² for CKD-EPI. Considering the associations between GFR in each of the stages and the results of blood creatinine, 83 patients were classified as OCKD by MDRD-4 while 23 were classified by MDRD-EPI; showing an underestimation of the GFR when using MDRD-EPI. The importance of this study lies in the early detection of the disease and in preventing the complications that could restrict the patient’s well-being. The support of the networking laboratories brings the appropriate and low cost tools for an early assistance in search of security, care and education forthe patient.

Keywords : Chronic renal disease; Estimated glomerular filtration rate; Associated risk factors; Occult renal disease.

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