risque (7) Risk (7) Patients (7) Patients (7) Complications (5) Aortic valve (5) temps (durée) (4) substitution (4) littérature (4) ordre (4) taux (4) Technique (4) Time (4) Order (4) Literature (4) Heart--Surgery (4) Technique (4) puits (3) norme (3) pompe (3) mortalité (3) âge (3) Mortality (3) Treatment (3) Methods (3) Heart--Imaging (3) Mortality (3) Life (3) Hemorrhage (3) Age (3)