The cholesterol controversy

OBJECTIVE: To provide information about the controversy associated with lowering of cholesterol concentrations to prevent coronary heart disease (CHD). DATA SOURCES: Studies, review articles, and editorials identified from MEDLINE searches (from 1966 to 1995) and bibliographies of identified articles. STUDY SELECTION: Studies, review articles, and editorials addressing controversial issues related to cholesterol lowering. DATA EXTRACTION: Pertinent information was selected and the data synthesized into a review format. DATA SYNTHESIS: Hypercholesterolemia is a well-known CHD risk factor. Reduction of serum cholesterol concentrations has been shown to reduce the incidence of CHD. Unfortunately, cholesterol lowering also appears to increase the risk for cancer, accidental and violent death, stroke, and oddly enough, CHD when certain medications are used. CONCLUSIONS: Significant reductions in serum cholesterol concentrations can be achieved with cholesterol-lowering interventions. However, the benefits associated with cholesterol reduction may not outweigh the risks in all patients with hypercholesterolemia. Cholesterol-lowering interventions should be recommended with caution in patients at increased risk of cancer, stroke, and depression. Caution should also be used when recommending fibric acid derivatives for patients with existing CHD.

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