P6347Structural valve deterioration in the Mitroflow biological heart valve prosthesis

Early Structural Valve Deterioration of Mitroflow Aortic Bioprosthesis

Early Structural Valve Deterioration of the Mitroflow Aortic Bioprosthesis: Will the New Anticalcification Treatment Change Anything?

T here has been a trend toward more frequent use of biopros-thetic valves, especially in the young generations, over the last decade. 1 Freedom from warfa-rin use and restrictions on diet and activities make bioprosthetic valves more attractive and popular, and multiple reports have shown that choosing a bioprosthetic valve does not decrease survival despite the increased rate of reoperation. T...

Clinical experience with the Bicarbon heart valve prosthesis

BACKGROUND We have previously reported mid-term results of a study, which ended in January 2000, on the Bicarbon valve. The study concluded that the valve showed excellent clinical results, associated with a low incidence of valve-related complications. In the present study, the same patients were prospectively followed for an additional 5 years. METHODS Forty-four patients had aortic valve r...

A mechanical analysis of the closed Hancock heart valve prosthesis.

In order to obtain mechanical specifications for the design of an artificial leaflet valve prosthesis, a geometrically non-linear numerical model is developed of a closed Hancock leaflet valve prosthesis. In this model, the fibre reinforcement of the leaflet and the viscoelastic properties of frame and leaflets are incorporated. The calculations are primarily restricted to 1/6 part of the valve...

Mitral Ball-Valve Prosthesis

REPLACEMENT of nonfunctioning valves is a significant recent advancement in the correction of cardiac valvular disease. The most widely used artificial device replacing the mitral valve is the Starr-Edwards ballvalve prosthesis.' Its effectiveness was shown in recent reports by the marked clinical improvement in properly selected patients.2 However, cardiologists and cardiac surgeons are faced ...