Abstract
Background: Contrast-induced nephropathy (CIN) is a form of acute kidney injury (AKI) that is caused by exposure to contrast media in diagnostic imaging and interventional procedures such as angiography. At present serum creatinine is the only standard test for it. A few studies have been published analyzing the potential use of neutrophil-gelatinase-associated lipocalin (NGAL) in AKI. Aim: The aim of this study is to search for new markers to identify AKI acute renal failure earlier than serum creatinine. Materials and Methods: We studied 100 consecutive patients with normal serum creatinine undergoing angiographic procedure against Urine NGAL, serum NGAL, serum Cystatin C and urinary interleukin-18 (IL-18) at basal, and 2 h, 4 h, 8 h, 24 h, and 48 h after the angiography. Results: There was a significant rise in serum NGAL levels at 2 h, 4 h, and 8 h after angiography and in urinary NGAL levels at 4 h, 8 h, and 24 h after the procedure. Cystatin C rose significantly at 8 h and 24 h after the procedure, On the other hand, there was mild rise in urinary Il-18 levels at 24 h, but not significant. The presence of CIN associated with AKI was 13%. Conclusion: The present study highlighted the importance of serum NGAL, urine NGAL and Cystatin C in detecting AKI associated with contrast administration earlier than serum creatinine.
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More From: Journal of Mahatma Gandhi Institute of Medical Sciences
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