Differential effects of strong and regular statins on the clinical outcome of patients with chronic kidney disease following coronary stent implantation—The Kumamoto intervention conference study (KICS) registry

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  • Differential Effects of Strong and Regular Statins on the Clinical Outcome of Patients With Chronic Kidney Disease Following Coronary Stent Implantation　– The Kumamoto Intervention Conference Study (KICS) Registry –

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Background:The aim of this study was to examine the effects of different statins on the clinical outcomes of Japanese patients with coronary stent implants.Methods and Results:This study included 5,801 consecutive patients (males, 4,160; age, 69.7±11.1 years, mean±SD) who underwent stent implantation between April 2008 and March 2011. They were treated with a strong statin (n=3,042, 52%, atorvastatin, pitavastatin, or rosuvastatin), a regular statin (n=1,082, 19%, pravastatin, simvastatin, or fluvastatin) or no statin (n=1,677, 29%). The patients with chronic kidney disease (CKD) were divided into mild-to-moderate CKD (30≤eGFR<60, n=1,956) and severe CKD (eGFR <30, n=559). Primary endpoints included cardiovascular death and nonfatal myocardial infarction, including stent thrombosis and ischemic stroke. The clinical outcome for the primary endpoint in mild-to-moderate CKD patients treated with a strong statin (hazard ratio 0.50, 95% confidence interval 0.31–0.81; P=0.005) was significantly lower than in those on no statins, but that in the patients treated with a regular statin was not (P=0.160). The clinical outcome for the primary endpoint in severe CKD patients treated with a strong or regular statin was no different than not being on statin therapy (P=0.446, P=0.194, respectively).Conclusions:In patients with mild-to-moderate CKD, only strong statins were associated with lower risk compared with no statin, but regular statins were not. It is possible that taking a strong statin from the early stage of CKD is useful for suppression of cardiovascular events. (Circ J 2015; 79: 1115–1124)

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  • Circulation Journal

    Circulation Journal 79 (5), 1115-1124, 2015

    一般社団法人 日本循環器学会

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