bioprosthesis造句

• The main use of these models is to study the calcification potential of xenogeneic bioprosthesis ).
• At 10 years, and beyond, the pericardial valve did function well in the aortic position, as reported by various authors ., Several pericardial valves were explanted from the aortic position at 16, 17 and 18 years following implantation, and a few valves between 21 and 23 years . describes a case of an Ionescu-Shiley bioprosthesis which functioned 24years in the mitral position of a patient.
• None of these showed a better performance than the original Ionescu valve with the exception of a pericardial valve modified and built by Edwards Laboratories and commercialised under the name of'Carpentier-Edwards Pericardial Bioprosthesis .'This valve is reported to perform better than its predecessor, the original Ionescu Shiley valve . However, a correct comparison between these two valves cannot be made because the Ionescu valve had been used by most surgeons in patients of all age groups and mostly younger than 65 years, as was the custom in the Seventies and Eighties.