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Nonbacterial thrombotic endocarditis

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Title: Nonbacterial thrombotic endocarditis  
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Subject: Endocarditis, Infective endocarditis, HACEK endocarditis, Right atrial enlargement, Atrial enlargement
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Nonbacterial thrombotic endocarditis

Nonbacterial thrombotic endocarditis
Classification and external resources
DiseasesDB 29250

Non-bacterial thrombotic endocarditis (NBTE) is a form of endocarditis in which small sterile vegetations are deposited on the valve leaflets. Formerly known as marantic endocarditis, which comes from the Greek marantikos, meaning “wasting away.”[1] The term "marantic endocarditis" is still sometimes used to emphasize the association with a wasting state[2] such as cancer.[3]

Contents

  • Histopathology 1
  • Risk factors 2
  • Valve predilection 3
  • Diagnosis 4
  • References 5

Histopathology

Grossly, vegetations form along lines of valve closure and are generally symmetric with a smooth or inflammation.

Risk factors

Marantic vegetations are often associated with previous rheumatic fever.

Other risk factors include:

Valve predilection

The disease affects the valves with the following predilection:

aortic valve > mitral valve > tricuspid valve > pulmonary valve [5]

Diagnosis

Due to the non-invasive nature of NBTE, clinical examination may or may not reveal a new murmur.

An embolic stroke may be the first feature to suggest the diagnosis of NBTE. An echocardiograph may be used to further assess for valvular lesions.

References

  1. ^ "eMedicine - Neurological Sequelae of Infectious Endocarditis : Article by Milind J Kothari". Retrieved 2008-03-23. 
  2. ^ "Noninfective Endocarditis: Endocarditis: Merck Manual Professional". Retrieved 2008-12-22. 
  3. ^ "Definition: marantic endocarditis from Online Medical Dictionary". Retrieved 2008-12-22. 
  4. ^ "nonbacterial thrombotic endocarditis" at Dorland's Medical Dictionary
  5. ^ Surgical pathology of nonbacterial thrombotic endocarditis in 30 patients, 1985-2000. Eiken PW, Edwards WD, Tazelaar HD, McBane RD, Zehr KJ . Mayo Clin Proc. 2001 Dec;76(12):1204-12
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