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[Myocardial infarction with normal coronary arteries].

R Espinosa, E Badui, M G Narvaez

    Archivos Del Instituto De Cardiologia De Mexico
    |November 1, 1986
    PubMed
    Summary

    Myocardial Infarction (MI) in patients with normal coronary arteries is rare, affecting 7% of cases. Most patients with this condition, often linked to smoking, remain asymptomatic long-term.

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    Area of Science:

    • Cardiology
    • Internal Medicine

    Context:

    • Myocardial Infarction (MI) with normal coronary arteries is a distinct clinical entity.
    • Understanding its characteristics is crucial for accurate diagnosis and management.

    Purpose:

    • To analyze the clinical characteristics, risk factors, and outcomes of MI patients with unobstructed coronary arteries.

    Summary:

    • Retrospective study of 36 MI patients (7% of total MI cases) with normal coronary arteries.
    • Average age 42, 75% male; cigarette smoking identified as a key risk factor.
    • 94% had normal ejection fraction; 88% were asymptomatic long-term, suggesting unique physiopathology.

    Impact:

    • Highlights a specific subgroup of MI patients requiring tailored investigation.
    • Suggests potential for favorable long-term prognosis despite acute event.
    • Informs further research into the mechanisms of MI without obstructive coronary artery disease.

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