Abstract
Background
The results of previous studies have been contradictory in terms of the efficacy of statin treatment in preventing contrast-induced acute kidney injury (CI-AKI) and clinical adverse events (AEs).
Objective
This meta-analysis was undertaken to assess the role of short-term statin treatment in the prevention of CI-AKI and clinical AEs.
Methods
We searched the Cochrane Library, EMBASE, and PubMed databases for randomized controlled trials (RCTs) with the development of CI-AKI as a primary outcome. Secondary outcomes were the post-procedural serum creatinine (SCr) level, estimated glomerular filtration rate (eGFR), and development of AEs. We also performed prespecified subgroup analyses.
Results
A total of 21 RCTs involving 7746 patients were included. Short-term statin treatment significantly reduced the risk of CI-AKI [risk ratio (RR) 0.57; 95 % confident interval (CI) 0.47–0.69; p < 0.00001) and was associated with a lower post-procedural SCr level and a higher eGFR. High-dose statins resulted in a lower incidence of CI-AKI than the lower-dose statins. In addition, the benefit was seen across various subgroups for patients at risk of CI-AKI, statin-naïve patients, and East Asians, regardless of statin type, definition of CI-AKI, use of N-acetylcysteine (NAC) and hydration, and osmolality of contrast. However, there was no significant difference between the two groups in terms of the incidence of AEs.
Conclusions
The meta-analysis suggests that short-term statin treatment can effectively prevent CI-AKI, and the benefit is also observed in high-risk patients, statin-naïve patients, and an East Asian population. However, the effect of simvastatin for the prevention of CI-AKI, of statins for the prevention of AEs, and whether high-dose statins have a better effect than lower-dose statins are all still uncertain.
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The authors gratefully acknowledge Dr. David Jack for his assistance with language editing.
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Haixia Li, Cailian Wang, Chuanzhi Liu, Ruifei Li, Meijuan Zou, and Gang Cheng have no conflicts of interest that might be relevant to the contents of this study.
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Li, H., Wang, C., Liu, C. et al. Efficacy of Short-Term Statin Treatment for the Prevention of Contrast-Induced Acute Kidney Injury in Patients Undergoing Coronary Angiography/Percutaneous Coronary Intervention: A Meta-Analysis of 21 Randomized Controlled Trials. Am J Cardiovasc Drugs 16, 201–219 (2016). https://doi.org/10.1007/s40256-016-0164-5
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DOI: https://doi.org/10.1007/s40256-016-0164-5