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      No Association of Angiotensin-Converting Enzyme Inhibitor or Angiotensin 2 Receptor Blocker Intake with Acute Kidney Injury in Patients Undergoing Kidney Biopsy

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          Abstract

          Background: Treatment with angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin 2 receptor blockers (ARBs) is associated with an increased risk for acute kidney injury after cardiovascular interventions. However, for patients undergoing kidney biopsy, no data is available. Methods: Four hundred and sixty-six patients undergoing kidney biopsy were retrospectively analyzed of whether or not concomitant intake of ACEIs or ARBs impairs kidney function. Results: Three hundred and twenty-three patients received ACEIs or ARBs or both before kidney biopsy. ACEI/ARB intake had no effect on kidney function compared to patients without this medication (all p > 0.05). Conclusion: Treatment with ACEIs or ARBs is not associated with risk of acute kidney injury in subjects undergoing kidney biopsy.

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          Angiotensin-converting enzyme inhibitors.

          ACE inhibitors have achieved widespread usage in the treatment of cardiovascular and renal disease. ACE inhibitors alter the balance between the vasoconstrictive, salt-retentive, and hypertrophic properties of angiotensin II (Ang II) and the vasodilatory and natriuretic properties of bradykinin and alter the metabolism of a number of other vasoactive substances. ACE inhibitors differ in the chemical structure of their active moieties, in potency, in bioavailability, in plasma half-life, in route of elimination, in their distribution and affinity for tissue-bound ACE, and in whether they are administered as prodrugs. Thus, the side effects of ACE inhibitors can be divided into those that are class specific and those that relate to specific agents. ACE inhibitors decrease systemic vascular resistance without increasing heart rate and promote natriuresis. They have proved effective in the treatment of hypertension, they decrease mortality in congestive heart failure and left ventricular dysfunction after myocardial infarction, and they delay the progression of diabetic nephropathy. Ongoing studies will elucidate the effect of ACE inhibitors on cardiovascular mortality in essential hypertension, the role of ACE inhibitors in patients without ventricular dysfunction after myocardial infarction, and the role of ACE inhibitors compared with newly available angiotensin AT1 receptor antagonists.
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            Preoperative use of angiotensin-converting enzyme inhibitors/angiotensin receptor blockers is associated with increased risk for acute kidney injury after cardiovascular surgery.

            Acute kidney injury (AKI) occurs commonly after cardiac surgery. Most patients who undergo cardiac surgery receive long-term treatment with angiotensin-converting enzyme inhibitors (ACEI) or angiotensin II receptor blockers (ARB). The aim of this study was to determine whether long-term use of ACEI/ARB is associated with an increased incidence of AKI after cardiac surgery. This was a retrospective cohort study of 1358 adult patients who underwent cardiac surgery between January 1, 2001, and December 31, 2005, in two tertiary care hospitals in Buffalo, NY. The incidence of AKI was determined after cardiac surgery. Clinical data were collected using a standardized form that included comorbid condition, use of ACEI/ARB, and intraoperative and postoperative complications. Overall, 40.2% of patients developed AKI. Preoperative variables that were significantly associated with development of AKI included increasing age; nonwhite race; combined valve surgery and coronary artery bypass grafting compared with coronary artery bypass grafting alone; American Society of Anesthesiologists (ASA) Risk Score category 4/5 compared with 2 to 3; presence of diabetes, congestive heart failure, or neurologic disease at baseline; use of ACEI/ARB; and emergency surgery. Intra- and postoperative factors that were associated with postoperative AKI were hypotension during surgery, use of vasopressors, and postoperative hypotension. Multiple regression logistic model confirmed an independent and significant association of AKI and preoperative use of ACEI/ARB. This was confirmed using a bivariate-probit and propensity score model that adjusts for confounding by indication of use and selection bias. Preoperative use of ACEI/ARB is associated with a 27.6% higher risk for AKI postoperatively. Stopping ACEI or ARB before cardiac surgery may reduce the incidence of AKI.
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              Renal Considerations in Angiotensin Converting Enzyme Inhibitor Therapy

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                Author and article information

                Journal
                KBR
                Kidney Blood Press Res
                10.1159/issn.1420-4096
                Kidney and Blood Pressure Research
                S. Karger AG
                1420-4096
                1423-0143
                2012
                January 2013
                08 August 2012
                : 35
                : 6
                : 558-560
                Affiliations
                aDepartment of Internal Medicine, Hartmann Hospital, bKarl Landsteiner Institute for Metabolic and Nephrologic Research, Hietzing Hospital, and Departments of cNephrology and Dialysis, dClinical Pharmacology, eClinical Pathology and fGastroenterology, University Hospital Vienna, Medical University of Vienna, Vienna, Austria
                Author notes
                *Dominik G. Haider, MD, Division of Nephrology and Dialysis, Department of Medicine III, Medical University of Vienna, Währinger Gürtel 18–20, AT–1090 Vienna (Austria), Tel. +43 1 404 004 390, E-Mail dominik.haider@meduniwien.ac.at
                Article
                339707 Kidney Blood Press Res 2012;35:558–560
                10.1159/000339707
                22890200
                7277262d-bab4-45c1-8933-487138f2d87a
                © 2012 S. Karger AG, Basel

                Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                History
                Page count
                Tables: 1, Pages: 3
                Categories
                Rapid Communication

                Cardiovascular Medicine,Nephrology
                Acute kidney injury,Kidney biopsy,Angiotensin 2 receptor blockers,Angiotensin-converting enzyme inhibitors

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