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- W1518667173 abstract "Background: Contrast-induced nephropathy is one of the common causes of acute renal insufficiency after cardiovascular procedures. Hypothesis: The objective of this paper was to analyze the published data on the usefulness of N-acetylcysteine in the prevention of contrast-induced nephropathy after these procedures. Methods: Trials were selected if they were prospective, randomized, controlled, had selected patients with impaired renal function, used low-osmolality, nonionic contrast media intra-arterially, administered a total of four doses of N-acetyl-cysteine in addition to intravenous saline hydration, and had contrast-induced nephropathy as their primary outcome. Contrast-induced nephropathy was defined as an increase in serum creatinine concentration by > 0.5 mg/dl or a 25% increase above baseline at or within 48 h post procedure. Meta-analysis was performed using the Fisher's Combined Test with a measure of effect size. The magnitude of the N-acetyl-cysteine effect was estimated using random-effects models. Homogeneity was evaluated using the chi-square test of homogeneity and standard Q statistic. Reporting bias was explored by the Rosenthal method. Results: The Fisher's Combined Test was significant at p < 0.005 in favor of N-acetylcysteine. The size of the N-acetylcysteine effect was to reduce contrast-induced nephropathy by 20%. There was a 62% relative risk reduction in contrast-induced nephropathy with N-acetylcysteine using a fixed-effects model, and a 70% relative risk reduction using the random-effects model. In addition, we found that 27 unpublished trials showing no effects of N-acetylcysteine would exist to overturn the combined significance of p < 0.005 of the five trials in our meta-analysis. Conclusion: Oral administration of N-acetylcysteine in addition to intravenous saline hydration has a beneficial effect in the prevention of contrast-induced nephropathy after cardiovascular procedures in patients with impaired renal function." @default.
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- W1518667173 date "2004-11-01" @default.
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- W1518667173 title "Role of N-acetylcysteine in prevention of contrast-induced nephropathy after cardiovascular procedures: A meta-analysis" @default.
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- W1518667173 doi "https://doi.org/10.1002/clc.4960271106" @default.
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