Data provided by company:

• Available 1969 - 1986

Comments Surgery:

• Tilting disc design with two struts, valves with the convexo-concave design: tendency to develop fractures in the outflow strut with subsequent valve failure, valve was therefore recalled

Comments Echocardiography:

• No EOAi calculator available

References:

1. Rosenhek et al. Normal Values for Doppler Echocardiographic Assessment of Heart Valve Prostheses. Journal of the American Society of Echocardiography, November 2003
2. Vincent L. Gott et al. Mechanical Heart Valves: 50 Years of Evolution. Ann Thorac Surg 2003; 76:S2230-9