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Indian J Nephrol. 2012 May;22(3):196-9. doi: 10.4103/0971-4065.98756.

Comparison of serum creatinine and spot urine interleukin-18 levels following radiocontrast administration.

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  • 1Department of Internal Medicine, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkey.

Abstract

Radiocontrast administration is an important cause of acute renal failure. In this study, compared the plasma creatinine levels with spot urine IL-18 levels following radiocontrast administration. Twenty patients (11 males, 9 females) underwent radiocontrast diagnostic and therapeutic-enhanced examinations. The RIN Mehran risk score was low (≤5). The radiocontrast agents used were 623 mg/mL Iopromid (1.5 mL/kg), and 100 mL of 650 mg/mL meglumine diatrizoate as three-way oral and rectal contrast material for abdominal computed tomography (CT) scans. Serum blood urea nitrogen, creatinine, Na, K, Cl, Ca, P, creatinine clearance, and spot urine IL-18 levels were analyzed before and repeated at 24, 48, and 72 h after radiocontrast administration. Six and 24-h urinary IL-18 levels were measured with a human IL-18 ELISA kit following radiocontrast administration. An increase in plasma creatinine 24 and 48 h following radiocontrast administration was observed compared with precontrast values, but it was not statistically significant (P=0.052 and P=0.285, respectively). A statistically significant increase in IL-18 levels was observed at 6 and 24 h, compared with precontrast values (P=0.048 and P=0.028, respectively). A tendency for postcontrast 24-h urinary IL-18 levels to increase was observed compared with 6 h, but the increase was not statistically significant (P=0.808). Our results show that plasma creatinine starts to increase at 24(th) hour; however, spot urine IL-18 levels go up at 6(th) hour following radiocontrast administration implying urine IL-18 to be an earlier parameter for kidney injury.

KEYWORDS:

Radiocontrast; serum creatinine; urine IL-18

PMID:
23087555
[PubMed]
PMCID:
PMC3459524
Free PMC Article
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