Non-bacterial thrombotic endocarditis echocardiography and ultrasound
non-bacterial thrombotic endocarditis
Non-bacterial thrombotic endocarditis echocardiography and ultrasound On the Web
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Echocardiography may be helpful in the diagnosis of non-bacterial thrombotic endocarditis. It is especially important in visualizing valvular vegetations suggestive of NBTE. Although echocardiography is important in the diagnosis of vegetations in cardiac valves, it does not differentiate vegetations due to thrombotic infection from vegetations as a result of aggregations of platelets and fibrin.
- Echocardiography may be helpful in the diagnosis of non-bacterial thrombotic endocarditis. It is especially important in visualizing valvular vegetations suggestive of NBTE.
- Left sided valves are more commonly affected with 75% of cases seen in the mitral valve.
- The vegetations in NBTE are typically <1cm, broad-based, and irregularly shaped.
- Less commonly, vegetations have been found to involve all the cardiac valves.
- Transesophageal echocardiography is more sensitive (90%) than transthoracic echocardiography, especially for vegetations <5mm.
- Because transesophageal echocardiography is an invasive procedure, evaluation of patients with this modality should be cased-based.
- The two-dimensional transesophageal echocardiography (2D-TEE) has a higher diagnostic value for the detection of vegetations in NBTE, however, the three-dimensional TEE (3D-TEE) has the following benefits over it:
- Improved detection
- Improved characterization
- Improved clinical correlations of NBTE vegetations
- Provides clinically relevant additive information complementing the 2D-TEE for the characterization, detection, and association with the cerebrovascular disease of NBTE endocarditis.
- Although echocardiography is important in the diagnosis of vegetations in cardiac valves, it does not differentiate vegetations due to thrombotic infection from vegetations as a result of aggregations of platelets and fibrin.
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