Aortic valve (23) Patients (22) Patients (22) Methods (15) Methods (15) substitution (13) mortalité (13) Mortality (13) Mortality (13) Months (13) Aortic valve--Stenosis (10) temps (durée) (9) Time (9) Manufacturers' agents (9) Impact (9) Commission merchants (9) risque (8) taux (8) Risk (8) hôpital (7) Echocardiography (7) Cerebrovascular disease (7) abords (agglomération) (6) Days (6) Confidence (6) analyse (5) danger (5) index (5) Treatment (5) Complications (5)