Acetylcysteine for prevention of contrast-induced nephropathy after intravascular angiography: A systematic review and meta-analysisReport as inadecuate




Acetylcysteine for prevention of contrast-induced nephropathy after intravascular angiography: A systematic review and meta-analysis - Download this document for free, or read online. Document in PDF available to download.

BMC Medicine

, 2:38

First Online: 22 October 2004Received: 16 April 2004Accepted: 22 October 2004DOI: 10.1186-1741-7015-2-38

Cite this article as: Bagshaw, S.M. & Ghali, W.A. BMC Med 2004 2: 38. doi:10.1186-1741-7015-2-38

Abstract

BackgroundContrast-induced nephropathy is an important cause of acute renal failure. We assess the efficacy of acetylcysteine for prevention of contrast-induced nephropathy among patients undergoing intravascular angiography.

MethodsWe conducted a systematic review and meta-analysis of randomized controlled trials comparing prophylactic acetylcysteine plus hydration versus hydration alone in patients undergoing intravascular angiography. Studies were identified by searching MEDLINE, EMBASE, and CENTRAL databases. Our main outcome measures were the risk of contrast-induced nephropathy and the difference in serum creatinine between acetylcysteine and control groups at 48 h.

ResultsFourteen studies involving 1261 patients were identified and included for analysis, and findings were heterogeneous across studies. Acetylcysteine was associated with a significantly reduced incidence of contrast-induced nephropathy in five studies, and no difference in the other nine with a trend toward a higher incidence in six of the latter studies. The pooled odds ratio for contrast-induced nephropathy with acetylcysteine relative to control was 0.54 95% CI, 0.32–0.91, p = 0.02 and the pooled estimate of difference in 48-h serum creatinine for acetylcysteine relative to control was -7.2 μmol-L 95% CI -19.7 to 5.3, p = 0.26. These pooled values need to be interpreted cautiously because of the heterogeneity across studies, and due to evidence of publication bias. Meta-regression suggested that the heterogeneity might be partially explained by whether the angiography was performed electively or as emergency.

ConclusionThese findings indicate that published studies of acetylcysteine for prevention of contrast-induced nephropathy yield inconsistent results. The efficacy of acetylcysteine will remain uncertain unless a large well-designed multi-center trial is performed.

Electronic supplementary materialThe online version of this article doi:10.1186-1741-7015-2-38 contains supplementary material, which is available to authorized users.





Author: Sean M Bagshaw - William A Ghali

Source: https://link.springer.com/







Related documents