Lack of protection of N-acetylcysteine (NAC) in acute renal failure related to elective aortic aneurysm repair-a randomized controlled trial

Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
Etienne MacedoJose M Vieira

Abstract

N-acetylcysteine (NAC) is an antioxidant drug largely tested in different clinical situations. Recently, NAC has been employed with variable success in the prevention of radiocontrast nephropathy. Since aortic aneurysm surgical repair is a condition that is frequently accompanied by acute renal failure (ARF), we sought to investigate whether NAC has any role in preventing ARF in this scenario. A randomized, placebo-controlled, double-blind trial with the following inclusion criteria: elective aortic aneurysm repair in patients with stable renal function. The groups were randomly matched for age, gender, presence of diabetes and pre-existent renal failure. NAC or placebo (control) was administered p.o. for 24 h before operation and maintained i.v. for 48 h after operation. The dose of NAC was 1200 mg b.i.d. the day before surgery and 600 mg b.i.d. after. The primary endpoint was the development of ARF up to the third post-operative day, defined as an increase in SCr > or = 25% from baseline. Secondary endpoints were: ICU mortality and ICU length of stay. Forty-two patients (n = 18 for NAC group and n = 24 for control) were studied. The baseline SCr and calculated GFR did not differ between the groups (1.19 +/- 0.33 vs 1.37 +/- 0...Continue Reading

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