Roos, J.W.

patient valve allograft aortic autograft replacement aortic valve replacement valve deterioration reoperation endocarditi survival follow-up re-operation operation deterioration heart aortic valve disease patient age disease surgery failure technique study takkenberg thorac valve-related range freedom erasmus university rotterdam / european journal procedure group allograft patients root replacement technique result donor mortality table event factor model van herwerden signi ficant difference discussion stented adult substitute subcoronary bogers aj subcoronary implantation technique autograft patients 13 years bioprosthese death european preoperative cardio-thoracic valve-related events root replacement valve substitutes implantation erasmu pericardial boger rotterdam regurgitation ross operation bicuspid aortic valve valvular heart disease aortic regurgitation prosthesi takkenberg jj 5 years bicuspid university tyrone —ware test mann —whitney u-test complication occurrence allograft recipients