Abstract:
:Cardiovascular disease has been inseparable from aging in developed societies and, as a result, it is the commonest cause of mortality in elderly populations. Atherosclerosis is associated with the progressive vascular accumulation of cholesterol-laden lipoproteins, and is linearly associated with the plasma level of low density lipoprotein (LDL) cholesterol. Clinical trials in patients aged < 65 years have conclusively shown that treatment of hypercholesterolaemia decreases the incidence of cardiovascular events and total mortality. However, few conclusive data are available regarding the treatment of hypercholesterolaemia in elderly patients. Extrapolation from clinical trials suggests that lipid lowering treatment in well selected elderly patients is effective in preventing cardiovascular events and is an efficient use of healthcare resources. In addition to cholesterol, high triglyceride and low high-density lipoprotein levels appear to be significant predictors of coronary artery disease in elderly patients. We do not advocate the indiscriminate screening of healthy elderly patients who have no other cardiovascular risk factors, because the marginal overall benefits are probably small and the costs of widespread screening and treatment high. On the other hand, chronological age itself cannot be considered a barrier to the screening and treatment of patients who have a good quality of life but have other cardiovascular risk factors and/or definite cardiovascular disease. Subgroup analysis of major clinical trials suggests that the aims of treatment should be to lower the LDL cholesterol level to 3.2 mmol/L (125 mg/dl), or the total cholesterol level to 5.2 mmol/L (200 mg/dl). Occasionally, multiple drug therapy is required to achieve this target, but statins (HMG-CoA reductase inhibitors) are the most commonly used first-line agents. With aggressive lowering of plasma lipid levels in this way, a reduction in clinical events is paralleled by regression of atheroma detectable by angiography, and an improvement in endothelial function. Global reduction of risk factors in elderly patients should always be undertaken, including dietary therapy, weight reduction in viscerally obese patients, postmenopausal estrogen replacement, smoking cessation, treatment of hypertension and control of diabetes mellitus. A secondary cause of dyslipidaemia should also be sought. The role of antioxidants is still not clear, but they are probably of little benefit in elderly patients. With the widespread use of effective, well tolerated treatments for lipid disorders in younger patients, significant improvements have already been attained in the morbidity and mortality associated with coronary artery disease. Since the current life expectancy at age 65 years is nearly 20 years in most Western countries, secondary prevention may increase the quality of life and the independent lifespan, even if eventual mortality is not delayed.
journal_name
Drugs Agingjournal_title
Drugs & agingauthors
Playford DA,Watts GFdoi
10.2165/00002512-199710060-00005subject
Has Abstractpub_date
1997-06-01 00:00:00pages
444-62issue
6eissn
1170-229Xissn
1179-1969journal_volume
10pub_type
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