Journal of Biomaterials Applications

 

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Journal of Biomaterials Applications, Vol. 13, No. 4, 351-388 (1999)
DOI: 10.1177/088532829901300404

Assessment of Pericardium in Cardiac Bioprostheses: A Review

José María García Páez

Servicio de Cirugía Experimental, Clínica Puerta de Hierro, San Martin de Porres, 4, 28035 Madrid, Spain

Eduardo Jorge-Herrero

Servicio de Cirugia Experimental, Clínica Puerta de Hierro, San Martin de Porres, 4, 28035 Madrid, Spain

Cardiac valve bioprostheses are assessed in terms of their present and future clinical utility. The problems concerning durability basically involve early failure due to tears in the valve leaflets and late failure mainly associated with calcification of the biological tissue. New strategies for selection and chemical treatment of the biomaterials employed are analyzed, and the available knowledge regarding their mechanical behavior is reviewed. It is concluded that the durability of these devices, and thus their successful use in the future, depends on the knowledge of the interactions among the different biomaterials of which they are composed, the development of new materials, and the engineering design applied in their construction.


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