Radiocontrast-Induced Acute Kidney InjuryMcCullough P.A.
Divisions of Cardiology, Nutrition, and Preventive Medicine, William Beaumont Hospital, Royal Oak, Mich., USA
Many radiographic studies and procedures use iodinated contrast media and consequently pose the risk of contrast-induced acute kidney injury (AKI). This is an important complication, which accounts for a significant number of cases of hospital-acquired renal failure associated increased hospital length of stay and increased mortality. Sustained reductions in renal blood flow, hypoxic injury, direct cellular toxicity by the contrast media, and superimposed organ injury are all believed to play a role in this form of AKI. Avoidance of dehydration and multimodality prevention measures may reduce rates of this problem in patients at risk. Contrast-induced AKI is likely to remain a significant challenge for specialists in the future since the patient population is aging, chronic kidney disease and diabetes are coming more common, and use of iodinated contrast is growing.
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