Clinical manifestations of acute myocardial infarction in older patients
1Department of Cardiology, University of California San Francisco, San Francisco, CA 94143, USA.
Insights
Elderly patients with coronary artery disease often present atypically, with dyspnea more common than chest pain. Silent myocardial ischemia and infarction are more frequent and carry worse prognoses in older adults.
Area of Science:
- Cardiology
- Geriatrics
Background:
- Coronary artery disease (CAD) is a leading cause of death in the elderly.
- Clinical presentation of CAD in older adults is often atypical.
- Comorbidities in the elderly can complicate the diagnosis of cardiac ischemia.
Purpose of the Study:
- To describe the atypical presentations of coronary heart disease in the elderly.
- To highlight the increased incidence of silent myocardial ischemia and infarction in this population.
- To emphasize the diagnostic challenges and prognostic implications of CAD in older patients.
Main Methods:
- Review of clinical presentations of coronary artery disease in elderly patients.
- Analysis of symptom patterns, including anginal equivalents and nonspecific symptoms.
- Comparison of diagnostic challenges and prognostic outcomes between elderly and younger populations.
Main Results:
- Dyspnea is a frequent anginal-equivalent symptom in the elderly, while typical chest pain is less common.
- Reduced pain perception contributes to a higher incidence of silent myocardial ischemia.
- Acute myocardial infarction in the elderly often presents with nonspecific symptoms like dyspnea, confusion, or weakness.
Conclusions:
- Atypical presentations, including dyspnea and silent events, are characteristic of coronary artery disease in the elderly.
- Silent myocardial ischemia and infarction in older adults are common and associated with a worse prognosis.
- Accurate diagnosis and management of CAD in the elderly require awareness of these unique clinical features.
Abstract:
Coronary artery disease is the major cause of morbidity and mortality in the elderly in the United States. In this age group, the clinical presentation of coronary heart disease can be quite atypical. In general, the incidence of typical precordial chest pressure/pain denoting myocardial ischemia is less common, whereas dyspnea as an anginal-equivalent symptom is frequent. The diagnosis of ischemic cardiac pain is frequently confused by the many comorbid conditions present in the elderly. Even when classic ischemic precordial discomfort is present, it tends to be less severe and less well defined. The elderly appear to have reduced pain perception; as a result, silent myocardial ischemia is more common and carries a somewhat worse prognosis in the elderly than in younger age groups. Similarly, the presenting symptoms of acute myocardial infarction in the elderly can be nonspecific. The classic crushing substernal chest pain decreases with age, whereas the symptom of dyspnea gradually increases. Neurologic symptoms, confusional states, weakness, and worsening heart failure are common clinical presentations of an acute infarction in elderly patients. Silent (unrecognized) myocardial infarctions are common in the elderly and carry serious prognostic implications.
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