Creatinine Clearance and Contrast Nephropathy in Patients With Normal Creatinine Levels

The main risk factor for contrast nephropathy is the presence of poor renal function. Plasma creatinine level is not a reliable measure of renal function as its value could lie within the normal range despite the presence of significant nephropathy. The purpose of this study was to evaluate the crea...

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Published inRevista española de cardiologia Vol. 60; no. 7; pp. 772 - 776
Main Authors de Agustín, José A., Carda, Rocío, Manzano, María del C., Ruiz-Mateos, Borja, García-Rubira, Juan C., Fernández-Ortiz, Antonio, Vilacosta, Isidre, Macaya, Carlos
Format Journal Article
LanguageEnglish
Spanish
Published Spain Elsevier Espana 01.07.2007
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Summary:The main risk factor for contrast nephropathy is the presence of poor renal function. Plasma creatinine level is not a reliable measure of renal function as its value could lie within the normal range despite the presence of significant nephropathy. The purpose of this study was to evaluate the creatinine clearance rate as a predictor of contrast nephropathy in patients with a normal plasma creatinine level. The study included 273 consecutive patients with non-ST elevation acute coronary syndrome (NSTEACS) and a normal plasma creatinine level at admission who underwent coronary angiography. Patients who developed contrast nephropathy had a lower creatinine clearance rate at admission (66.3 mL/min vs 83.4 mL/min; P<.001). A creatinine clearance rate <80 mL/min had a sensitivity of 81% for predicting contrast nephropathy. Creatinine clearance should be measured routinely in patients with NSTEACS who are scheduled for coronary angiography. El principal factor de riesgo de nefropatía por contraste (NC) es la presencia de una función renal deteriorada. La creatinina plasmática (Cp) es una medida poco exacta de la función renal y puede ser normal en presencia de nefropatía significativa. El objetivo del estudio es evaluar el valor del aclaramiento de creatinina (ACr) como predictor de NC en pacientes con Cp normal. Se incluyó a 273 pacientes consecutivos con síndrome coronario agudo sin elevación del segmento ST (SCASEST), con Cp normal en el momento ingreso y en los que se realizó una coronariografía. El ACr fue significativamente menor en el grupo de pacientes que presentaron NC (66,3 frente a 83,4 ml/min: p < 0,001). Un ACr < 80 ml/min presentó una sensibilidad de 81% para predecir el desarrollo de NC. El ACr se debería obtener de manera sistemática en pacientes con SCASEST.
ISSN:1885-5857
1885-5857
1579-2242
DOI:10.1016/S1885-5857(08)60013-4