• I Anjum, M Akmal, N Hasnain, M Jahangir, and W Sohail.
• Department of Medicine, California Institute of Behavioral Neurosciences and Psychology, United States.
• Hong Kong Med J. 2019 Jun 1; 25 (3): 216-221.

BackgroundAcute renal failure secondary to contrast-induced acute kidney injury (CI-AKI) is one of the most commonly encountered problems in hospitalised patients. The CI-AKI may lead to the development of persistent renal disease, causing significant morbidity and mortality in high-risk patients. Statins are increasingly recognised as effective in preventing CI-AKI. In this review, we reviewed the literature on statin use for prophylaxis of CI-AKI, its potential benefits, and adverse effects. The aim of the present review was to reveal gaps and discrepancies in the available literature, and to identify areas for future research.MethodsWe searched PubMed for articles published up to 2018, using keywords including: "Statins AND contrast-induced kidney injury", "3-hydroxy-3-methyl-glutaryl-CoA reductase inhibitors AND contras-induced kidney injury", and "HMG-CoA reductase inhibitors AND contrast induced nephropathy".ResultsVarious trials and reviews have yielded promising results in terms of statin efficacy. However, conflicting results and a lack of homogeneity in the protocols of these trials have limited the applicability of statin-based therapy in clinical practice. Despite the reported beneficial therapeutic effects of short-term high-dosage statin use in preventing CI-AKI, statin therapy is not yet the standard prophylactic regimen due to widespread heterogeneity in the clinical trials.ConclusionStatin therapy can be used as an adjunct to usual prophylactic measures such as adequate hydration and use of low-volume contrast media. Large well-designed trials on the effects of short-term high-dose statin use in preventing CI-AKI should be conducted, to eliminate any form of discrepancy among results, and to clarify any potential adverse effects.

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