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Cardiac rupture: 30 consecutive cases from a series of medicolegal autopsies

A R King, F J Cairns

    The New Zealand Medical Journal
    |December 13, 1978
    PubMed

    Insights

    Spontaneous cardiac rupture often occurs during recent myocardial infarction, especially in older individuals with severe coronary atherosclerosis. This study examined 30 autopsy cases to understand the factors contributing to this critical cardiac event.

    Area of Science:

    • Cardiology
    • Pathology
    • Forensic Medicine

    Background:

    • Spontaneous cardiac rupture is a rare but often fatal complication of myocardial infarction.
    • Understanding the underlying factors is crucial for improving patient outcomes and forensic analysis.

    Purpose of the Study:

    • To investigate the pathological factors associated with spontaneous cardiac rupture in medicolegal autopsy cases.
    • To correlate cardiac rupture with myocardial infarction and coronary artery disease severity.

    Main Methods:

    • Microscopic examination of 30 hearts from medicolegal autopsies showing ruptured infarcts.
    • Analysis of heart muscle (normal and diseased) and coronary arteries for atherosclerosis and thrombosis.
    • Demographic data collection including age and sex.

    Main Results:

    • All ruptures occurred in recent transmural left ventricular myocardial infarctions.
    • Severe coronary artery atherosclerosis was a consistent finding.
    • Nine cases (33%) exhibited occlusive coronary thrombosis.
    • Many subjects lacked symptoms of recent myocardial ischemia.

    Conclusions:

    • Recent myocardial infarction, particularly transmural left ventricular infarction, is a prerequisite for spontaneous cardiac rupture.
    • Severe coronary atherosclerosis and thrombosis are significant contributing factors.
    • The absence of recent ischemic symptoms in some cases highlights the potential for sudden cardiac events.

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