Type of implanted prosthesis
The brands and types of mechanical prostheses placed were St. Jude Masters HPTM, On-XTM, Edwards-MIRATM, Medtronic-HallTM,A.T.S. 3fTM, Carbomedics OrbisTM.The bioprostheses placed were St. Jude EpicTM, Carpentier-Edwards PERIMOUNTTM, and bioprostheses manufactured by the Instituto Nacional de Cardiología “Ignacio Chávez” (figure 1). These prostheses were made of bovine pericardial tissue, with a rigid titanium ring, which has been manufactured since 197619.