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  • Title: Effect of a 3-year therapy with the 3-hydroxy-3-methylglutaryl coenzyme a reductase-inhibitor fluvastatin on endothelial function and distensibility of large arteries in hypercholesterolemic renal transplant recipient.
    Author: Kosch M, Barenbrock M, Suwelack B, Schaefer RM, Rahn KH, Hausberg M.
    Journal: Am J Kidney Dis; 2003 May; 41(5):1088-96. PubMed ID: 12722044.
    Abstract:
    BACKGROUND: In patients after renal transplantation functional arterial vessel wall properties are impaired. Whether 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors have a sustained effect on endothelial function and arterial distensibility in patients after renal transplantation is not clear. The authors studied the effects of a long-term therapy with fluvastatin on large artery distensibility and flow-mediated vasodilation (FMD) in hypercholesterolemic patients after renal transplantation in a prospective, blinded, and randomized trial. METHODS: Twenty-six patients who had undergone renal transplantation were assigned randomly to either fluvastatin, 40 mg/d (n = 13) or placebo (n = 13) and underwent follow-up for 3 years. At baseline and after 6, 12, and 36 months of treatment, carotid and brachial artery distensibility, endothelium-dependent FMD, and nitroglycerine-induced vasodilation (NMD) of the brachial artery were measured by a echo-tracking device. RESULTS: A significant decrease in total and low-density cholesterol was observed after 6, 12, and 36 months in patients treated with fluvastatin but not in the placebo group. FMD increased with fluvastatin from 4.6 +/- 2% to 12.4 +/- 2% after 12 months; this improvement was sustained with 13.4 +/- 3% after 36 months (P < 0.05). However, placebo did not alter FMD (P < 0.001 for trend difference between groups by analysis of covariance). Endothelium-independent NMD was similar in both groups at baseline and during therapy. Neither carotid nor brachial artery distensibility coefficients were altered by either treatment. CONCLUSION: HMG-CoA reductase inhibitor therapy over 3 years results in a significant and sustained improvement of endothelial function in hypercholesterolemic patients after renal transplantation. However, this is not accompanied by a beneficial effect on impaired large artery distensibility even after long-term therapy with fluvastatin.
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