Pravastatin for Secondary Prevention of Cardiovascular Events in Persons with Mild Chronic Renal Insufficiency

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Abstract
Cardiovascular disease is a common cause of morbidity and death in persons with renal insufficiency. Although 3-hydroxy-3methylglutaryl coenzyme A reductase inhibitors (statins) are effective for secondary prevention of cardiovascular events in the general population, they have not been specifically studied in chronic renal insufficiency. To determine whether pravastatin is effective and safe for secondary prevention of cardiovascular events in persons with chronic renal insufficiency. Post hoc subgroup analysis of a randomized, double-blind, placebo-controlled trial. The Cholesterol and Recurrent Events (CARE) study, a randomized trial of pravastatin versus placebo in 4159 participants with previous myocardial infarction and total plasma cholesterol levels less than 6.21 mmol/L (P = 0.02). Pravastatin was associated with lower adjusted hazard ratios for major coronary events (0.72 [CI, 0.59 to 0.88]; P = 0.001) and coronary revascularization (0.65 [CI, 0.50 to 0.83]; P = 0.001), but not total mortality (0.81 [CI, 0.61 to 1.08]; P = 0.14) or stroke (0.62 [CI, 0.39 to 1.00]; P = 0.051). Tests for interaction suggested that the observed benefit was independent of the presence and severity of renal insufficiency. Incidence of side effects was similar in persons receiving pravastatin and those receiving placebo. These data suggest that pravastatin is effective and appears safe for secondary prevention of cardiovascular events in persons with mild chronic renal insufficiency. Since statins may be underused in this setting, physicians should consider prescribing them for patients with chronic renal insufficiency and known coronary disease.

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