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  • Title: Protection from procedural myocardial injury by atorvastatin is associated with lower levels of adhesion molecules after percutaneous coronary intervention: results from the ARMYDA-CAMs (Atorvastatin for Reduction of MYocardial Damage during Angioplasty-Cell Adhesion Molecules) substudy.
    Author: Patti G, Chello M, Pasceri V, Colonna D, Nusca A, Miglionico M, D'Ambrosio A, Covino E, Di Sciascio G.
    Journal: J Am Coll Cardiol; 2006 Oct 17; 48(8):1560-6. PubMed ID: 17045888.
    Abstract:
    OBJECTIVES: The goal of this work was to investigate whether protection from myocardial injury during percutaneous coronary intervention (PCI) by atorvastatin is related to reduction of endothelial inflammatory response. BACKGROUND: In the randomized ARMYDA (Atorvastatin for Reduction of MYocardial Damage during Angioplasty) trial, 7-day pre-treatment with atorvastatin before PCI significantly reduced procedural myocardial injury; mechanisms underlying this effect are not characterized. METHODS: In a planned subanalysis of the ARMYDA trial, a subgroup of 76 patients was blind-tested for measurement of plasma levels of vascular cell adhesion molecule-1 (VCAM-1), intercellular cell adhesion molecule-1 (ICAM-1), and E-selectin: 38 patients belonged to atorvastatin (40 mg/day) and 38 to the placebo arm. Adhesion molecules were evaluated 7 days before intervention, immediately before PCI, and after 8 and 24 h. RESULTS: Reduction of procedural myocardial injury after statin pre-treatment was also confirmed in this subgroup. Intercellular cell adhesion molecule-1, E-selectin, and VCAM-1 levels were not different at randomization and before intervention in either arm. At 8 h, increase of ICAM-1 levels was similar in the 2 arms, whereas 24-h levels were significantly lower in the atorvastatin versus placebo group (282 +/- 56 vs. 325 +/- 70 ng/ml; p = 0.007). Attenuation of E-selectin elevation occurred at 8 h in the atorvastatin group (50 +/- 8 vs. 59 +/- 13 ng/ml; p = 0.002) and became even more significant at 24 h (57 +/- 9 vs. 73 +/- 18 ng/ml; p = 0.0008). Vascular cell adhesion molecule-1 levels were not different at any time point in the 2 arms. CONCLUSIONS: In patients undergoing PCI, reduction of procedural myocardial injury after 7-day pre-treatment with atorvastatin is paralleled by concomitant attenuation of post-procedural increase of ICAM-1 and E-selectin levels; thus, reduction of endothelial inflammatory response may explain this protective effect of statins.
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