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      Radiocontrast-Induced Acute Kidney Injury

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          Abstract

          Many radiographic studies and procedures use iodinated contrast media and consequently pose the risk of contrast-induced acute kidney injury (AKI). This is an important complication, which accounts for a significant number of cases of hospital-acquired renal failure associated increased hospital length of stay and increased mortality. Sustained reductions in renal blood flow, hypoxic injury, direct cellular toxicity by the contrast media, and superimposed organ injury are all believed to play a role in this form of AKI. Avoidance of dehydration and multimodality prevention measures may reduce rates of this problem in patients at risk. Contrast-induced AKI is likely to remain a significant challenge for specialists in the future since the patient population is aging, chronic kidney disease and diabetes are coming more common, and use of iodinated contrast is growing.

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          Incidence and prognostic importance of acute renal failure after percutaneous coronary intervention.

          Charanjit Rihal, Stephen C Textor, Diane E. Grill … (2002)
          In patients undergoing percutaneous coronary intervention (PCI) in the modern era, the incidence and prognostic implications of acute renal failure (ARF) are unknown. With a retrospective analysis of the Mayo Clinic PCI registry, we determined the incidence of, risk factors for, and prognostic implications of ARF (defined as an increase in serum creatinine [Cr] >0.5 mg/dL from baseline) after PCI. Of 7586 patients, 254 (3.3%) experienced ARF. Among patients with baseline Cr 2.0, all had a significant risk of ARF. In multivariate analysis, ARF was associated with baseline serum Cr, acute myocardial infarction, shock, and volume of contrast medium administered. Twenty-two percent of patients with ARF died during the index hospitalization compared with only 1.4% of patients without ARF (P 2.0 are at high risk for ARF. ARF was highly correlated with death during the index hospitalization and after dismissal.
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            Contrast-induced nephropathy in patients undergoing primary angioplasty for acute myocardial infarction.

            Gianfranco Lauri, Fabrizio Veglia, Sinara de Almeida … (2004)
            The aim of this research was to assess the incidence, clinical predictors, and outcome of contrast-induced nephropathy (CIN) after primary percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI). Contrast-induced nephropathy is associated with significant morbidity and mortality after PCI. Patients undergoing primary PCI may be at higher risk of CIN because of hemodynamic instability and unfeasibility of adequate prophylaxis. In 208 consecutive AMI patients undergoing primary PCI, we measured serum creatinine concentration (Cr) at baseline and each day for the following three days. Contrast-induced nephropathy was defined as a rise in Cr >0.5 mg/dl. Overall, CIN occurred in 40 (19%) patients. Of the 160 patients with baseline Cr clearance >/=60 ml/min, only 21 (13%) developed CIN, whereas it occurred in 19 (40%) of those with Cr clearance 75 years (odds ratio [OR] 5.28, 95% confidence interval [CI] 1.98 to 14.05; p = 0.0009), anterior infarction (OR 2.17, 95% CI 0.88 to 5.34; p = 0.09), time-to-reperfusion >6 h (OR 2.51, 95% CI 1.01 to 6.16; p = 0.04), contrast agent volume >300 ml (OR 2.80, 95% CI 1.17 to 6.68; p = 0.02) and use of intraaortic balloon (OR 15.51, 95% CI 4.65 to 51.64; p < 0.0001) were independent correlates of CIN. Patients developing CIN had longer hospital stay (13 +/- 7 days vs. 8 +/- 3 days; p < 0.001), more complicated clinical course, and significantly higher mortality rate (31% vs. 0.6%; p < 0.001). Contrast-induced nephropathy frequently complicates primary PCI, even in patients with normal renal function. It is associated with higher in-hospital complication rate and mortality. Thus, preventive strategies are needed, particularly in high-risk patients.
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              Hospital-acquired renal insufficiency: a prospective study.

              S Hou, D Bushinsky, J B Wish … (1983)
              Twenty-two hundred sixty-two consecutive medical and surgical admissions were evaluated prospectively to determine the contribution of iatrogenic factors to the development of renal insufficiency in hospital. Of 2,216 patients at risk, some degree of renal insufficiency developed in 4.9 percent. Decreased renal perfusion, postoperative renal insufficiency, radiographic contrast media, and aminoglycosides accounted for 79 percent of the episodes. Iatrogenic factors, broadly defined, accounted for 55 percent of all episodes. Poor prognostic indicators included oliguria, urine sediment abnormalities and, most importantly, severity of renal insufficiency; with an increase in serum creatinine of 3 mg/dl or greater, the mortality rate was 64 percent. Age, admission serum creatinine levels, and the number of episodes of renal insufficiency did not significantly affect outcome. We conclude that there is a substantial risk of the development of renal failure in hospital and that the mortality rate due to hospital-acquired renal insufficiency remains high.
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                Author and article information

                Journal
                Journal ID (publisher-id): NEP
                Journal ID (nlm-ta): Nephron Physiol
                Journal ID (doi): 10.1159/issn.1660-2137
                Title: Nephron Physiology
                Publisher: S. Karger AG
                ISBN: 978-3-8055-8646-7
                ISBN: 978-3-8055-8647-4
                ISSN (Electronic): 1660-2137
                Publication date Subscription-year: 2008
                Publication date (Print): September 2008
                Publication date (Electronic): 18 September 2008
                Volume: 109
                Issue: 4
                Pages: p61-p72
                Affiliations
                Divisions of Cardiology, Nutrition, and Preventive Medicine, William Beaumont Hospital, Royal Oak, Mich., USA
                Article
                Publisher ID: 142938 Other ID: Nephron Physiol 2008;109:p61
                DOI: 10.1159/000142938
                PubMed ID: 18802377
                SO-VID: ca0a90ad-57c6-40e2-9168-3a5def3746dc
                Copyright © © 2008 S. Karger AG, Basel
                License:

                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.

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                Page count
                Figures: 4, Tables: 2, References: 86, Pages: 1
                Categories
                Subject: Paper

                ScienceOpen disciplines: Cardiovascular Medicine,Nephrology
                Keywords: Cardiovascular disease,Porphylaxis,Osmolality,Acute kidney injury,Iodinated contrast,Chronic kidney disease
                Data availability:
                ScienceOpen disciplines: Cardiovascular Medicine, Nephrology
                Keywords: Cardiovascular disease, Porphylaxis, Osmolality, Acute kidney injury, Iodinated contrast, Chronic kidney disease

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