Published on:
    Journal of Cardiovascular Disease Research, 2012; 3(3):228-230
    CLINICAL CASE REPORT BASED STUDY | doi:10.4103/0975-3583.98899

    Acute thrombosis of mechanical bi-leaflet aortic valve prosthesis


    Theodor Tirilomis

    Department for Thoracic, Cardiac, and Vascular Surgery, University of Goettingen, Goettingen, Germany.


    Thrombosis of mechanical aortic valve prosthesis is a rare but life-threatening complication. In most reported cases, inadequate anticoagulation or cessation of anticoagulation is the cause of prosthesis thrombosis. The case of a 70-year-old male patient hospitalized for severe dyspnoea is presented. Although the patient was under continuous anticoagulation, thrombosis of the 16 years previously implanted mechanical 31-sized aortic valve prosthesis was diagnosed. Emergency surgery was performed and postoperative course was uneventful. Patients with large size prostheses should have closer anticoagulation monitoring, even after many years of event-free postimplant course.

    Key words: Anticoagulation, aortic valve, mechanical prosthesis, thrombosis.