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Acute ST elevation myocardial infarction in a patient with caged ball mitral valve prosthesis: a case report

Srilakshmi M Adhyapak, G G Shetty, M J Santosh

    International Journal of Cardiology
    |August 19, 2007
    PubMed

    Insights

    Systemic thromboembolism is a complication of prosthetic valve thrombosis (PVT). This case highlights coronary artery embolism presenting as myocardial infarction 15 years post-mitral valve replacement, despite no PVT evidence.

    Area of Science:

    • Cardiology
    • Cardiovascular Surgery
    • Thromboembolic Disease

    Background:

    • Prosthetic valve thrombosis (PVT) is a known complication following heart valve replacement surgery.
    • Systemic thromboembolism is a significant risk associated with PVT.
    • Early diagnosis and management of PVT are crucial to prevent severe outcomes.

    Observation:

    • A 30-year-old female presented with acute ST-elevation myocardial infarction.
    • The patient had undergone mitral valve replacement 15 years prior.
    • No clinical signs or symptoms of prosthetic valve thrombosis were evident at presentation.

    Findings:

    • The myocardial infarction was attributed to coronary artery embolism.
    • This event occurred long after the initial valve replacement, in the absence of overt PVT.
    • This suggests a potential for late embolic events from prosthetic valves, independent of typical PVT indicators.

    Implications:

    • This case underscores the importance of considering late embolic complications from prosthetic heart valves, even without clear evidence of thrombosis.
    • It highlights the need for vigilance in monitoring patients with prosthetic valves for atypical presentations of thromboembolism.
    • Further research may be warranted to understand the mechanisms and long-term risks of such late embolic events.

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