Implications of a new clinical classification of acute myocardial infarction
Authors' conclusion
A new clinical classification of myocardial infarction informed by cardiac imaging would reduce the diagnosis of myocardial infarction in acute illness and identify those patients at highest risk who are most likely to benefit from treatment.
Study context
- Population
- Patients with Type 2 myocardial infarction who underwent coronary angiography and cardiac magnetic resonance imaging or echocardiographypatients with Type 2 myocardial infarction (65 years, 43% women)
- Participants
- 100 patients
- Exposure
- Secondary myocardial infarction compared with those without myocardial infarction
- Spontaneous myocardial infarctionn = 25
- Secondary myocardial infarctionn = 31
- No myocardial infarctionn = 44
- Outcome
- Patient characteristics (age, risk factors, troponin concentrations)
Main finding
As reported in the abstract
- Secondary myocardial infarction vs no myocardial infarction: older, more risk factors, higher troponin concentrations
- P < 0.05 for all
Observational data: associations, not effects.
Further findings
| Outcome | Secondary myocardial infarction | No myocardial infarction | P value |
|---|---|---|---|
| Death, myocardial infarction, or heart failure hospitalization · median follow-up of 4.4 yearsSecondary myocardial infarction vs no myocardial infarction · more common in secondary myocardial infarction | 55% | 16% | P < 0.001 |
Original publication
Implications of a new clinical classification of acute myocardial infarction. Eur Heart J Acute Cardiovasc Care. Published 18 January 2025. doi:10.
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