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Diagnosis of mechanical prosthetic valve thrombosis or obstruction

Sorin Pislaru, MD, PhD
Heidi M Connolly, MD, FASE
Section Editor
William H Gaasch, MD
Deputy Editor
Susan B Yeon, MD, JD, FACC


Replacement of a diseased heart valve with a prosthetic heart valve exchanges the native disease for prosthesis-related complications [1-3]. Complications include prosthetic valve obstruction (including thrombosis and pannus formation), patient-prosthesis mismatch, embolic events, bleeding, prosthetic heart valve regurgitation (valvular and paravalvular), infective endocarditis, and prosthetic valve-related hemolysis.

Thrombus forming on a mechanical prosthetic valve can be nonobstructive or obstructive and may or may not cause clinical thromboembolic events [4-7].

Diagnosis of mechanical prosthetic valve thrombosis and obstruction are reviewed here. Related issues including when to suspect prosthetic valve thrombosis and obstruction and how to start the evaluation are reviewed separately:

(See "Clinical manifestations and initial evaluation of prosthetic valve thrombosis and obstruction".)

(See "Management of mechanical prosthetic valve thrombosis and obstruction".)

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Literature review current through: Oct 2017. | This topic last updated: Oct 31, 2017.
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