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[Heart infarction in persons over 70. Epidemiologic studies of the clinical course]
Insights
Older patients, particularly women over 70, show an increased rate of myocardial infarction. Despite initial resuscitation success, in-hospital mortality remains high, with deaths often occurring later in treatment.
Area of Science:
- Cardiology
- Geriatric Medicine
- Public Health
Context:
- Retrospective analysis of 1158 acute myocardial infarction patients across 6 Hamburg clinics.
- Focus on the demographic and clinical characteristics of older patients (≥70 years), who constituted 46% of the cohort.
- Observation of an increased incidence of myocardial infarction in women over 70 compared to previous studies.
Purpose:
- To analyze the clinical course and outcomes of acute myocardial infarction (AMI) in elderly patients.
- To identify risk factors, complications, and mortality patterns in patients over 70 experiencing AMI.
- To compare the presentation and progression of AMI in older versus younger patient groups.
Summary:
- Hypertension and diabetes mellitus were the most frequent risk factors, though hypertension prevalence was similar to the general elderly population.
- Silent myocardial infarction occurred in 10-15% of patients over 70.
- Hemodynamic complications affected 66% of older patients; ventricular fibrillation was more common in younger patients.
- Initial resuscitation success in older patients was 25%, but in-hospital mortality remained high at 50%.
- A significant proportion (40%) of deaths in older patients occurred after the acute phase, between the second and fourth week of hospitalization.
Impact:
- Highlights the significant burden of acute myocardial infarction in the elderly population.
- Suggests potential areas for improved monitoring and management strategies for older AMI patients, particularly in the post-acute phase.
- Provides data on the specific challenges and outcomes associated with AMI in geriatric populations, informing clinical practice and future research.
Abstract:
1158 patients with acute myocardial infarction hospitalized in 6 clinics at Hamburg were analyzed retrospectively with special regard to older patients. 46% of all patients were older than 70 years. In contrast to former investigations the rate of myocardial infarction of women over 70 is arised. The reason of admission was reinfarction in 39%. The most frequent risk factors were hypertension and diabetes mellitus; but hypertension is not more frequent than in this age-group of the whole population. A so-called "silent" myocardial infarction occurred in 10-15% of patients over 70 years. The clinical course of acute myocardial infarction was injured by hemodynamic complications in 66%. Ventricular fibrillation was more frequent in younger than in older patients. The reanimation of older patients was successful in 25% primary, but the inhospital mortality was unchanged high (50%). In contrast to younger patients 40% of cases of death occurred after the acute phase in the 2.-4. week of hospital treatment.