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  • Title: Aggressive statin therapy in multicenter and effectiveness for the reduction of intra-myocardial damage caused by non-ST elevation acute coronary syndrome: AMERICA study.
    Author: Hara H, Nakamura M, Yokouchi I, Kimura K, Nemoto N, Ito S, Ono T, Itaya H, Shiba M, Wada M, Iijima R, Yamamoto M, Yamamoto M, Hara H, Takagi T, Asahara T, Mitsuo K, Kobayashi N, Sugi K.
    Journal: Ther Adv Cardiovasc Dis; 2009 Oct; 3(5):357-65. PubMed ID: 19638365.
    Abstract:
    BACKGROUND: While preprocedural statin treatment for acute coronary syndrome (ACS) is widely regarded as beneficial, there has been no prospective randomized multicenter trial of patients with non-ST elevation ACS in the Japanese population to examine the efficacy of preprocedural aggressive statin use. The aim of this study was to confirm this effect by prospective randomized multicenter design. METHODS: Fifty patients who presented with non-ST elevation ACS were enrolled, and randomly assigned to aggressive statin administration before percutaneous coronary intervention (PCI). Troponin-T (TnT), creatine phosphokinase (CK), CK-myocardial band (CK-MB), high-sense C-reactive protein (hs-CRP), and brain natriuretic peptide (BNP) were measured at baseline and/ or after procedure. RESULTS: Three days after PCI, the statin group had significantly less CK elevation compared with the nonstatin group (84+/-17 IU/l versus 180+/-68 IU/l, respectively, p = 0.02). CK-MB elevation also tended to be lower in the statin group than in the nonstatin group (3.2+/-1.9 versus. 7.0+/-3.0, respectively, p = 0.07), as was BNP level (3.2+/-1.9 versus 7.0+/-3.0 pg/ml, respectively, p = 0.07). The change of serum LDL cholesterol was significantly correlated with CK (p = 0.01) and TnT (p = 0.02) at 1 day after PCI. CONCLUSIONS: Aggressive statin usage before PCI to Japanese patients with non-ST elevation ACS appears to reduce myocardial damage after procedure. The degree of serum lipid level reduction may reflect the vulnerability of atheromatous plaques that could cause cardiac damage after PCI.
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