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The relation of serum cholesterol to risk of coronary heart disease: implications for the elderly
1Center for Gerontology and Health Care Research, Brown University, Providence, RI.
Insights
High cholesterol remains a risk factor for coronary heart disease (CHD) even in older adults. While evidence for cholesterol lowering in the elderly is limited, persistent associations warrant clinical consideration.
Area of Science:
- Cardiology
- Geriatrics
- Public Health
Background:
- Elevated cholesterol is a significant risk factor for coronary heart disease (CHD).
- The growing elderly population presents a clinical challenge regarding CHD risk management.
- The association between serum cholesterol and CHD risk diminishes but persists after age 55.
Purpose of the Study:
- To evaluate the clinical significance of elevated cholesterol in older adults concerning coronary heart disease.
- To review the evidence for cholesterol-lowering interventions in elderly populations.
- To provide recommendations for clinical management and future research in this demographic.
Main Methods:
- Analysis of longitudinal cohort studies on cholesterol and CHD.
- Review of primary and secondary prevention trials on lipid-lowering therapies.
- Synthesis of findings for implications in elderly patient care.
Main Results:
- The link between serum cholesterol and CHD persists beyond age 55, though it lessens.
- Primary prevention trials show reduced CHD incidence but not overall mortality in middle-aged men.
- Secondary prevention studies indicate reduced mortality and slowed coronary stenosis progression, primarily in men under 60.
Conclusions:
- Clinical attention to cholesterol management in older patients is warranted due to persistent CHD risk.
- Current evidence from prevention trials is limited for the elderly, particularly regarding overall mortality benefits.
- Further research is needed to guide effective lipid management strategies for older adults.
Abstract:
Elevated cholesterol is a known risk factor for coronary heart disease (CHD) in young and middle-aged persons. Because of the high prevalence of CHD in a growing elderly population, physicians must decide whether to devote clinical attention to this condition in older patients. Longitudinal cohort studies show that while the association between serum cholesterol and CHD decreases after age 55 years, it still persists. Primary prevention trials performed mostly on middle-aged men have reduced the incidence rate of CHD through cholesterol lowering but they have yet to show a reduction in overall mortality. Secondary prevention studies of lipid alteration have reported decreased mortality and slowed progression of coronary stenoses, again in predominantly male subjects aged less than 60 years. Implications of these findings for care of older patients are discussed along with recommendations for clinical management and future research.
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