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What is your approach to diagnosis and evaluation of nonbacterial thrombotic endocarditis (Libman-Sacks)?

Patient with negative blood cultures, completed 6 weeks of IV antibiotics and vegetation persists. CT imaging without evidence of malignancy. No evidence SLE or APS.
3 Answers
Mednet Member
Cardiology · University of Nebraska Medical Center
Answered on

Nonbacterial thrombotic endocarditis (NBTE), also known as Libman-Sacks endocarditis, is a form of endocarditis characterized by the presence of sterile vegetations on cardiac valves. It is most commonly associated with systemic autoimmune conditions, notably systemic lupus erythematosus (SLE) and antiphospholipid syndrome (APS), but can also be seen in the context of malignancy and other hypercoagulable states. The approach to diagnosis and evaluation of NBTE involves several key steps:

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Mednet MemberInvited Expert
Rheumatology · NYU Langone Health
Answered on · Updated on

Noninfectious endocarditis is best divided into inflammatory vegetation best illustrated by Libman Sacks lesions vs, in the alternative, a primary thrombotic vegetation also known both as marantic and, less commonly in literature, as murantic endocarditis and associates with hypercoagulable states such as APS and other inherited or acquired thrombophilic states most especially adenocarcinomas. The literature also refers to these lesions whether principally inflammatory or thrombotic as non-infec...

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Mednet Member
Cardiology · George Washington University Hospital
Answered on

What is the microscopic composition of the vegetations? If Non-thrombotic, Non-infectious, seems no role for anticoagulation.

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