Abstract:
INTRODUCTION/AIMS:The Acute Kidney Injury Network classification is based on small increases in serum creatinine (sCr) for stage 1. This study investigated whether changes in the urinary concentration of neutrophil gelatinase-associated lipocalin (uNGAL) could predict small increases in sCr in patients undergoing coronary angiography. METHODS:The uNGAL was measured before contrast infusion and 2 and 4 h afterwards. Patients were divided into 2 subgroups: G1 (n = 103), where sCr increased by <0.3 mg/dl, and G2 (n = 22), where sCr increased by ≥0.3 mg/dl 48 h after the angiography. To determine the sensitivity and specificity for the absolute and relative variations of uNGAL, a receiver operating characteristic curve analysis was performed. RESULTS:In G2, the uNGAL concentration increased over baseline values (15.9 vs. 9.2 ng/dl; p < 0.05), and it was also 2-fold higher in G2 versus G1 (15.9 vs. 8.0 ng/dl; p < 0.001). The uNGAL remains an independent predictor of the small increases in sCr, and, for an increase of 50% over baseline levels, it showed 60% sensitivity and 81% specificity. CONCLUSION:Changes in uNGAL concentration 2 h after the infusion of contrast media showed marginal sensitivity to predict small increases in sCr.
journal_name
Nephronjournal_title
Nephronauthors
Souza DF,Reis SS,Botelho RV,Ferreira-Filho SRdoi
10.1159/000368413subject
Has Abstractpub_date
2015-01-01 00:00:00pages
84-90issue
2eissn
1660-8151issn
2235-3186pii
000368413journal_volume
129pub_type
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