Yacoub, M.H.

patient valve aortic homograft replacement autograft study group allograft surgery aortic valve replacement endocarditi ross procedure reoperation freestyle operation follow-up homograft group procedure thorac heart survival aortic root replacement result ross operation outcome autograft group freedom death prosthesi mortality homograft root replacement cardiovasc adult 10 years ann thorac surg signi allograft patients substitute valve substitute retrospective prosthese center table disease durability report failure review number prosthesis patients 13 years aortic valve analysis aortic valve disease yacoub freestyle group ⅐⅐⅐ patient-year technique valve replacement deterioration regurgitation patient age signi ficantly 8 years aortic valve endocarditis aortic root surgery swets subs service treatment valve-related change 0.05 event series hospital children york heart association klieverik takkenberg