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Anticoagulation in prosthetic valve endocarditis.

J L Carpenter, C K McAllister

    Southern Medical Journal
    |November 1, 1983
    PubMed
    Summary
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    Infective endocarditis patients on anticoagulants, particularly those with prosthetic valves, faced a high risk of fatal central nervous system hemorrhage. Careful consideration of anticoagulation in prosthetic valve endocarditis is crucial.

    Area of Science:

    • Cardiology
    • Infectious Diseases
    • Neurosurgery

    Background:

    • Infective endocarditis (IE) is a serious infection affecting heart valves.
    • Distinguishing outcomes between native valve endocarditis (NVE) and prosthetic valve endocarditis (PVE) is important for clinical management.
    • The role of anticoagulation in PVE outcomes requires further investigation.

    Purpose of the Study:

    • To compare the clinical experience and outcomes of patients with NVE and PVE.
    • To identify the primary causes of mortality in IE patients.
    • To assess the impact of anticoagulation on mortality in PVE patients.

    Main Methods:

    • Retrospective review of 100 IE patients at US Army Medical Centers.
    • Comparison of 82 NVE patients with 18 PVE patients (porcine and synthetic valves).

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  • Analysis of patient data including anticoagulation status and causes of death.

    • Main Results:

    • Prosthetic valve endocarditis patients were more likely to receive anticoagulants (14/18) compared to NVE patients (0/82).
    • Central nervous system (CNS) hemorrhage was the principal cause of death in PVE patients.
    • Among PVE patients on anticoagulants, 36% experienced symptomatic cerebral hemorrhage, with an 80% mortality rate in this subgroup.

    Conclusions:

    • Anticoagulation in patients with prosthetic valve endocarditis is associated with a significantly increased risk of fatal CNS hemorrhage.
    • These findings underscore the need for cautious management of anticoagulation in PVE.
    • Further research is warranted to optimize anticoagulation strategies in IE.