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Published on: May 26, 2022
Trials in coronary heart disease and hypertension with special reference to the elderly
1Department of Medicine, Ostra Hospital, Göteborg, Sweden.
Insights
Older patients benefit from treatments, but careful monitoring of side effects is crucial. Balancing treatment benefits against risks is essential, especially for those with serious conditions like myocardial infarction.
Area of Science:
- Geriatric Medicine
- Clinical Trials
- Cardiovascular Medicine
Background:
- Age is a significant factor influencing the risk of complications such as death, myocardial infarction (MI), and stroke.
- The relationship between various clinical endpoints and age is dynamic, with the stroke-to-MI ratio increasing with advancing age.
- Older individuals may exhibit increased vulnerability to treatment side effects and altered responses to interventions.
Purpose of the Study:
- To evaluate the efficacy and safety of medical interventions in older patient populations.
- To analyze how age impacts the detection of treatment effects in clinical trials.
- To assess the balance between therapeutic benefits and adverse events in elderly patients undergoing treatment for cardiovascular conditions.
Main Methods:
- Review of clinical trials involving patients with hypertension and myocardial infarction.
- Analysis of age-related changes in endpoint ratios (e.g., stroke vs. MI).
- Assessment of metabolic side effects and quality-of-life measures in different age groups.
Main Results:
- Treatment effects observed in older patients were comparable to those in younger patients for interventions in hypertension and myocardial infarction.
- Metabolic side effects, including impaired glucose metabolism and elevated creatinine/uric acid levels, were notable in older adults.
- The prognosis of the untreated condition significantly influences the acceptable level of treatment side effects, with more side effects being tolerable in post-MI patients.
Conclusions:
- Interventions for conditions like hypertension and myocardial infarction demonstrate efficacy in older adults.
- Metabolic side effects of treatments may pose greater risks in the elderly population.
- A thorough risk-benefit assessment, considering the prognosis of the untreated disease, is critical for optimizing treatment strategies in aging patients.
Abstract:
The risks of complications like death, myocardial infarction and stroke increase continuously with increasing age. Therefore, the chances of detecting effects of treatment in trials also increase when patients get older. The relationships between different end-points change with age, e.g. the ratio between stroke and MI increases with age. However, interventions not related to the interventions under study may also increase, causing dilution of effects. The older subject may also be more vulnerable to the side-effects of treatment. Side-effects, and quality-of-life measures, which indeed may vary with age, must be properly balanced against effects on 'hard' end-points. A review of trials in patients with hypertension and myocardial infarction shows that effects of various interventions have been at least as great in older as in younger patients. However, metabolic side effects such as impaired glucose metabolism, increased serum creatinine, and increased uric acid levels have not been negligible, and such effects may turn out to be more hazardous in the elderly than in younger patients. The balance between positive and negative effects must be properly assessed in relation to the prognosis of the untreated condition. Patients who have suffered a myocardial infarction have, in general, a more serious prognosis than most hypertensives, and more side-effects of treatment may therefore be accepted in patients with myocardial infarction.
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