Nonbacterial thrombotic endocarditis: Difference between revisions
m Robot: Changing Category:Diseases to Category:Disease |
m Robot: Automated text replacement (-{{SIB}} +, -{{EH}} +, -{{EJ}} +, -{{Editor Help}} +, -{{Editor Join}} +) |
||
| Line 14: | Line 14: | ||
}} | }} | ||
{{SI}} | {{SI}} | ||
'''Marantic endocarditis,''' also known as '''non-bacterial thrombotic endocarditis''' (NBTE), is the deposition of small [[sterile]] [[vegetation (pathology)|vegetation]]s on [[heart valve|valve]] leaflets. | '''Marantic endocarditis,''' also known as '''non-bacterial thrombotic endocarditis''' (NBTE), is the deposition of small [[sterile]] [[vegetation (pathology)|vegetation]]s on [[heart valve|valve]] leaflets. | ||
| Line 45: | Line 45: | ||
{{reflist}} | {{reflist}} | ||
{{Heart diseases}} | {{Heart diseases}} | ||
{{WH}} | {{WH}} | ||
Revision as of 14:22, 20 August 2012
| Nonbacterial thrombotic endocarditis | |
| DiseasesDB | 29250 |
|---|---|
Marantic endocarditis, also known as non-bacterial thrombotic endocarditis (NBTE), is the deposition of small sterile vegetations on valve leaflets.
The previous term for nonbacterial thrombotic endocarditis (NBTE) was marantic endocarditis, from the Greek marantikos, meaning “wasting away.”[1]
Risk factors
Marantic vegetations are often associated with previous rheumatic fever.
Other risk factors include:
- hypercoagulable states,
- mucin-producing adenocarcinomas,
- lupus and
- trauma (e.g., catheters).
Valve predilection
The disease affects the valves with the following predilection:
mitral valve > aortic valve > tricuspid valve > pulmonary valve.
Presentation
Grossly, vegetations form along lines of valve closure and are generally symmetric with a smooth or verrucoid (warty) texture. Histologically, lesions are composed of fibrin[2] (eosinophilic) and platelets but, unlike bacterial etiologies, contain little evidence of PMNs, microorganisms or inflammation.
Diagnosis
Due to the non-invasive nature of NBTE, clinical examination may or may not reveal a new murmur.
It is imperative to take the blood pressure in both arms.