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Pulmonary emboli originating from infective endocarditis of the mitral valve migrating through an atrial septal

Dong-Hwan Jun, Chang-Wook Nam, Yun-Kyeong Cho

    International Journal of Cardiology
    |December 11, 2007
    PubMed

    Insights

    Infective endocarditis of the mitral valve led to pulmonary emboli migrating through an atrial septal defect. This rare case highlights a unique pathway for embolic events in young patients.

    Area of Science:

    • Cardiology
    • Infectious Diseases
    • Radiology

    Background:

    • Infective endocarditis involves heart valve infections, potentially leading to systemic embolization.
    • Atrial septal defects (ASDs) are congenital heart conditions that can alter blood flow patterns.

    Observation:

    • An 18-year-old male presented with fever, polyarthritis, and hemorrhage, indicative of endocarditis.
    • Echocardiography identified a mitral valve mass and a secundum-type atrial septal defect.
    • Computed tomography revealed embolic infarcts in the liver, spleen, and kidneys.

    Findings:

    • A pulmonary embolic infarction was identified after the patient developed sudden flank pain.
    • This embolic event was traced through the atrial septal defect from the mitral valve vegetation.
    • This represents the first reported instance of pulmonary emboli migrating via an ASD from mitral valve endocarditis.

    Implications:

    • This case underscores the importance of considering paradoxical embolism in patients with endocarditis and concurrent septal defects.
    • It highlights the diagnostic utility of advanced imaging in elucidating complex embolic pathways.
    • Understanding this rare embolic route may inform clinical management and prevention strategies for infective endocarditis complications.

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