Hemmer, W.

autograft patient reoperation ross procedure procedure valve homograft aortic technique replacement adult population ross operation operation ann thorac surg german-dutch ross registry aortic valve replacement reinforcement endocarditi patient-year thorac follow-up sc technique conduit result survival reintervention registry heart table children root replacement hazard ross-operation freedom surgery disease regurgitation circulation root replacement technique aortic valve disease group event subcoronary root reinforcement charito figure bicuspid aortic valve study reoperationen germany center aortic insuf ficiency mortality estimate stierle siever takkenberg implantation autograft reoperation adult population german-dutch werden ͻ0.001 failure intervention einer hanke t kindern report dilatation erasmus mc reinforcement procedures number 10 years deterioration thoracic bergang sinutubul series