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- Min Young Rim, Han Ro, Woong Chol Kang, Ae Jin Kim, Hyeonsu Park, Jae Hyun Chang, Hyun Hee Lee, Wookyung Chung, and Ji Yong Jung.
- Division of Nephrology, Department of Internal Medicine, Gachon University Gil Hospital, Gachon University of Medicine and Science, Incheon, Korea.
- Am. J. Kidney Dis. 2012 Oct 1;60(4):576-82.
BackgroundThe role of the angiotensin-converting enzyme (ACE) inhibitor and angiotensin receptor blocker (ARB) in the pathophysiology of contrast-induced acute kidney injury (AKI) is controversial, and the available literature is contradictory.Study DesignA retrospective propensity score-matched study to analyze the effect of ACE-inhibitor/ARB therapy on the development of contrast-induced AKI.Setting & ParticipantsUsing propensity score matching, 1,322 ACE-inhibitor/ARB recipients and nonrecipients were paired for analysis from 5,299 patients and fulfilled the inclusion criteria among 11,447 patients receiving coronary angiography (CAG) or percutaneous coronary intervention.PredictorsACE-inhibitor/ARB use based on prescription and risk factors for contrast-induced AKI.OutcomesThe incidence of contrast-induced AKI defined by AKI Network (AKIN) criteria: an absolute increase in serum creatinine levels ≥0.3 mg/dL or a relative increase ≥50% from baseline values within 48 hours after exposure to the contrast medium.MeasurementsBaseline serum creatinine, hemoglobin, and albumin levels; volume of contrast agents; preprocedural medication; and post-CAG serum creatinine levels.ResultsAn ACE inhibitor/ARB was prescribed for 64.0% of patients receiving CAG. ACE-inhibitor/ARB users showed an increased incidence of contrast-induced AKI after propensity score matching (11.4% vs 6.3%; P < 0.001). In multivariable analysis, use of ACE inhibitors/ARBs remained an independent and significant predictor of contrast-induced AKI in an unmatched cohort (OR, 1.39; 95% CI, 1.10-1.76; P = 0.06). In the matched cohort, use of ACE inhibitors/ARBs also was associated with a higher adjusted OR of contrast-induced AKI (OR, 1.43; 95% CI, 1.06-1.94; P = 0.02).LimitationsA retrospective study at a single center.ConclusionsUse of ACE inhibitors/ARBs during CAG has a possible influence to increase the incidence of contrast-induced AKI. Further randomized clinical trials are warranted to confirm the effect of ACE-inhibitor/ARB therapy on the development of contrast-induced AKI.Copyright © 2012 National Kidney Foundation, Inc. Published by Elsevier Inc. All rights reserved.
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