Robinson, D.R.

patient autograft aortic reoperation homograft technique ross operation procedure regurgitation valve value study ross procedure diameter operation follow-up group reinforcement annulu sinotubular junction children replacement thorac junction sinotubular dimension increase conduit model patient-year z values sinus signi adult heart population neoaortic germany registry gradient dilatation center grade subcoronary implantation development surgery failure echocardiographic table result ann thorac surg event swets subs service estimate hazard circulation root replacement technique survival university figure aortic regurgitation aortic root donor signi ficantly aortic root dimensions z value autograft reoperation root replacement autograft function homograft regurgitation preoperative analysis endocarditi autograft reinforcement range measurement colleague factor ficant