'European Association of Cardiothoracic Surgery (EACTS Publishing Ltd)'
Doi
Abstract
Patient background mortality and excess mortality related to aortic valve disease may play a greater role than implanted valve type in explaining the observed survival differences after aortic valve replacement. This study attempts to identify the differences between the performance of selected biological valves, given similar patient characteristics and excess mortality. Four biological valve types, the Carpentier-Edwards pericardial and supra-annular valve, Medtronic Freestyle valve and allografts were used for this analysis. Primary data calculated observed patient-survival an