nourisson (1) mur (1) âge (1) enfant (1) liberté (1) taux (1) survie (1) Diagnosis (1) Treatment (1) Methods (1) Reoperation (1) Echocardiography (1) Survival (1) Population (1) Patients (1) Human beings (1) Liberty (1) Diagnosis (1) Aortic valve--Stenosis (1) Aortic valve insufficiency (1) Aortic valve (1) Age (1) Methods (1) Age (1) Reoperation (1) Relapse (1) Population (1) Patients (1) Risk factors (1) nourrisson (1)