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Possible myocardial infarction in Auckland
The New Zealand Medical Journal
|September 24, 1980
Summary
This study examines possible myocardial infarction, a condition with chest pain but no clear diagnostic evidence. Polynesian females in Auckland showed higher susceptibility, with risk factors including hypertension and smoking.
Area of Science:
- Cardiology
- Epidemiology
Background:
- Possible myocardial infarction (PMI) presents as severe ischemic chest pain.
- Patients with PMI survive >24 hours but lack definitive electrocardiographic or enzymatic evidence of acute myocardial infarction.
Purpose of the Study:
- To describe the epidemiology of possible myocardial infarction in Auckland, New Zealand.
- To identify risk factors and demographic patterns associated with PMI.
Main Methods:
- Descriptive epidemiological study of PMI cases in Auckland.
- Analysis of incidence, sex ratio, and risk factors including alcohol consumption, smoking, hypertension, and electrocardiography results.
Main Results:
- Crude incidence of PMI was approximately 0.0012 per year.
- The sex ratio was 1.75 (males to females).
- Polynesian females exhibited a higher predisposition compared to Polynesian males. High alcohol consumption, frequent cigarette smoking, and a history of hypertension (52%) were noted. 24% had normal electrocardiography.
Conclusions:
- Possible myocardial infarction represents a distinct clinical entity with specific epidemiological characteristics.
- Polynesian females, hypertension, smoking, and alcohol consumption are significant factors associated with PMI.
- Short-term mortality (30 days) for PMI is low.