2013, Number 4
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Finlay 2013; 3 (4)
Need for estimating the glomerular filtration rate to assess renal function
Chipi CJA, Almaguer LM, Herrera VR, Silveira EJA, Abreu CMC, Fariñas MO
Language: Spanish
References: 15
Page: 209-218
PDF size: 210.15 Kb.
ABSTRACT
Background: plasma creatinine alone is not useful for
assessing renal function; patients with normal
creatinine values can experience a significant decline in
the glomerular filtration rate, hindering early detection
of renal function impairment.
Objective: to assess renal function by determining the
plasma creatinine compared to the glomerular filtration
rate estimated through the Cockcroft -Gault, MDRD -4
and CKD- Epi formulas.
Methods: the database of a
population-based epidemiological study conducted in
the Isle of Youth since November 2004 was used. It
involved 897 patients, 342 women and 555 men.
Plasma creatinine and glomerular filtration rate were
estimated by means of 3 formulas. Renal function was
considered normal when serum creatinine values were
‹123 µmol/l for women and ‹132 µmol/l for men and glomerular filtration rate › 60 ml/min.
Results: plasma creatinine was stable in the four age
groups, with a mean of 100.68 ± 38.01, glomerular
filtration rate decreased with increasing age in the three
formulas. Correlation coefficient between plasma
creatinine values and glomerular filtration rate for each
formula expressed a linear relationship with r [CG
formula 0.639 (p = 0.000)], [0.672 MDRD -4 (p =
0.000)] and [0.939 CKD – Epi formula (p = 0.000)].
Conclusions: the utility of the methods for estimating
the glomerular filtration rate was demonstrated, leading
to the detection of the renal function impairment before
the serum creatinine level increases.
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