Who should receive a statin these days? Lessons from recent clinical trials

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Abstract
: The 3‐hydroxy‐3‐methylglutaryl coenzyme A reductase inhibitors or statins are the most successful cardiovascular drugs of all time. By interrupting cholesterol synthesis in the liver, they activate hepatocyte low‐density lipoprotein (LDL) receptors and produce consistent and predictable reductions in circulating LDL cholesterol with resulting reproducible improvements in cardiovascular risk by retarding or even regressing the march of atherosclerosis in all major arterial trees (coronary, cerebral and peripheral). Clinical trials have demonstrated their capacity not only to extend life, but also to improve its quality by retarding the progression of diabetes mellitus and chronic renal disease and by enhancing central and peripheral blood flow.They are amongst the most extensively investigated pharmaceutical agents in current clinical use. In cardiovascular end‐point trials they have proven ability to help prevent that first and all important myocardial infarction and to reduce the likelihood of a recurrence in those who do succumb. They are equally effective in men and women of all ages and at all levels of cardiovascular risk, whether caused by hypercholesterolaemia, hypertension, cigarette smoking, diabetes mellitus or the metabolic syndrome. In addition, they improve the outlook of patients with familial hypercholesterolaemia whose LDL receptor function is deficient or defective; and all of this comes at minimal risk to the recipient. Their most important potential side effect is myopathy, which on very rare occasions may lead to rhabdomyolysis. Clinical experience shows that myopathic symptoms with creatine kinase levels raised to more than 10 times the upper limit of normal is seen in <0.01% of recipients and progression to fatal rhabdomyolysis because of renal failure has been recorded in only 0.15 cases per million prescriptions. Liver function abnormalities are also, rarely, seen. Again, the frequency of raised aspartate or alanine aminotransferase to more than three times the normal limit is encountered in no more than 1–2% of all treated patients and is completely reversible upon withdrawal of treatment. Progression to hepatitis or liver failure does not occur.This constellation of benefits with little side effect penalty has resulted in the comparison of statins with antibiotics in the global battle against cardiovascular disease.

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