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Am J Cardiol. 1998 Nov 26;82(10B):53T-56T. Pedersen TR. Department of Cardiology, Aker Hospital, Oslo, Norway. Although hyperlipidemia is a known risk factor for coronary artery disease, lipid-lowering agents were not used widely until recently because evidence was lacking that they could prolong life. In 1987, a large clinical trial, the Scandinavian Simvastatin Survival Study (4S), was designed to test whether such therapy could decrease all-cause mortality in patients with documented coronary artery disease. The prospective, randomized, multicenter trial included 4,444 patients who had had angina pectoris or myocardial infarction (MI), serum total cholesterol of 213-310 mg/dL, and serum triglycerides or =60 years of age. Treatment also significantly decreased the relative risk of coronary events and the need for bypass surgery or coronary angioplasty. Patients with diabetes also benefited significantly from simvastatin therapy. The reductions in relative risk of major coronary events were achieved irrespective of such baseline risk factors as hypertension and smoking and such medication factors as aspirin, beta-blocker, and calcium-antagonist use. Simvastatin therapy has been shown to be cost-effective, decreasing per-patient hospitalization costs by 31% or

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