Long-Term Effects on Cholesterol Levels and the Utilization of Lipid-Lowering Drugs of a Hospital-Based Programme for Secondary Prevention of Coronary Artery Disease

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Abstract
The study was designed to determine whether a 1-year hospital-based secondary prevention programme would have any long-term effects on serum lipid levels and the use of lipid-lowering drugs in patients with coronary artery disease 4 years after referral to primary care facilities for follow-up. After acute myocardial infarction or coronary bypass surgery, 241 consecutive patients were randomly assigned to conventional care (CC) by the primary health care facilities or to a 1-year hospital-based secondary prevention programme (SPP) with target levels for serum cholesterol (< 5.2 mmol/l) and triglycerides (< 1.5 mmol/l). After 1 year all patients were referred to the primary care sector for a further 4-year follow-up. At the 1-year follow-up there was a significant decrease in serum cholesterol, LDL-cholesterol and triglyceride levels in the SPP group but no change in the CC group, and lipid-lowering drugs were used more frequently in the SPP group. These changes were maintained after 5 years. The proportion of patients achieving target serum cholesterol and triglyceride levels were larger in the SPP group. Initiatives regarding cholesterol lowering and drug treatment taken by specialists within a structured hospital-based SPP have long-term impact. Accordingly, drug treatment should be initiated and adjusted to adequate doses before patients are referred to primary care for follow-up.

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