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[Non infectious endocarditis: retrospective study (6 cases)].

L Letranchant1, M Ruivard, C Dauphin

  • 1Service de médecine interne et hématologie, Hôtel-Dieu, CHU de Clermont-Ferrand, boulevard Malfrey, 63038 Clermont-Ferrand cedex 01, France. loletranchant@yahoo.fr

La Revue De Medecine Interne
|March 22, 2005
PubMed
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Diagnosing non-infectious endocarditis requires considering rare pathogens when blood cultures are negative. This study details clinical and echocardiographic findings in six non-infectious endocarditis cases.

Area of Science:

  • Cardiology
  • Internal Medicine
  • Rheumatology

Background:

  • Negative blood cultures in endocarditis necessitate investigation for non-bacterial causes, including slow-growing organisms, fungi, and specific bacteria.
  • Non-infectious endocarditis diagnosis is considered when infectious workups are negative.
  • This study focuses on the clinical and echocardiographic features of non-infectious endocarditis.

Observation:

  • Six cases of non-bacterial endocarditis were identified retrospectively over five years.
  • Libman-Sacks endocarditis was observed in four cases, two linked to antiphospholipid syndrome and two to systemic lupus erythematosus.
  • Other cases included fibroblastic endocarditis with hypereosinophilia and marantic endocarditis with metastatic cancer.

Findings:

Related Experiment Videos

  • Complete physical examination, complete blood count (CBC), antiphospholipid antibody testing, and thoraco-abdominal CT scans aided in diagnosing non-infectious endocarditis.
  • Libman-Sacks endocarditis associated with antiphospholipid syndrome was the primary etiology identified.
  • Long-term anticoagulation was not consistently followed in these cases.

    • Implications:

    • Highlights the importance of a comprehensive diagnostic approach for non-infectious endocarditis when standard infectious tests are negative.
    • Suggests antiphospholipid syndrome as a key associated condition for Libman-Sacks endocarditis.
    • Emphasizes the need for tailored treatment strategies based on the underlying cause of non-infectious endocarditis.