Abstract
Summary: Elevated plasma lipids have been associated with an increased risk of ischaemic heart disease. However, regimens which reduce plasma lipids may decrease the recurrence rate of myocardial infarction. Accurate diagnosis of patients with elevated lipids and their families may be important in both secondary and primary prevention of atherosclerosis. Classification of hyperlipoproteinaemias, the methods of diagnosis and an approach to dietary and drug therapy are discussed.