• J Formos Med Assoc · Jan 2021

    Renin-angiotensin-aldosterone system inhibition decreased contrast-associated acute kidney injury in chronic kidney disease patients.

    • Yi-Ting Chen, Chieh-Kai Chan, Wen-Yi Li, Tao-Min Huang, Tai-Shuan Lai, Vin-Cent Wu, Tzong-Shinn Chu, and National Taiwan University Hospital Study Group on Acute Renal Failure (NSARF).
    • Department of Integrated Diagnostics & Therapeutics, National Taiwan University Hospital, Taipei, Taiwan; Renal Division, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Physiology, National Taiwan University College of Medicine, Taipei, Taiwan.
    • J Formos Med Assoc. 2021 Jan 1; 120 (1 Pt 3): 641-650.

    Background/PurposeChronic kidney disease (CKD) is a risk factor for contrast associated acute kidney injury (CA-AKI). The risk of renin-angiotensin-aldosterone system inhibitor (RASi) use in patients with CKD before the administration of contrast is not clear.MethodsIn this nested case-control study, 8668 patients received contrast computed tomography (CT) from 2013 to 2018 during index administration in a multicenter hospital cohort. The identification of AKI is based on the Kidney Disease: Improving Global Outcomes (KDIGO) serum creatinine criteria within 48 h after contrast medium used.ResultsFinally, 986 patients (age, 63.36 ± 12.22; men, 72.92%) with CKD (estimated glomerular filtration rate (eGFR) = 35.0 ± 19.8 mL/min/1.73 m2) were eligible for analysis. After the index date, RASi users (n = 315) were less likely to develop CA-AKI (13.65% vs 30.4%, p < 0.001), and had a lower hospital mortality (8.25% vs 19.23%, p < 0.001) compared with non-users. The pre-contrast use of RASi decrease the risk of AKI (OR, 0.342, p < 0.001) and hospital mortality (OR, 0.602, p = 0.045). Even a few defined daily doses (DDDs) of RASi treatment, more than 0.02 prior to contrast CT could attenuate CA-AKI. The hospital mortality was higher in RASi non-users if their eGFR value was more than 17.9 mL/min/1.73 m2.ConclusionRASi use in patients with CKD prior to contrast CT has the potential to mitigate the incidence of AKI and hospital mortality. Even a low dose of RASi will noticeably decrease the risk of AKI and will not increase the risk of hyperkalemia.Copyright © 2020. Published by Elsevier B.V.

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