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Summary
Unusual triggers, such as allergic reactions from smallpox vaccination and intense stress, can precipitate heart attacks (myocardial infarction) in individuals with underlying coronary heart disease. These acute events may be considered determinating causes for insurance purposes.
Area of Science:
- Cardiology
- Immunology
- Occupational Health
Background:
- Coronary heart disease (atherosclerosis or thrombosis) is the typical cause of heart attack.
- Unusual precipitating factors for myocardial infarction are rarely documented.