title: [The ostium primum or partial atrioventricular septal defect].
abstract: Often assimilated to simple inter-atrial communication, the ostium primum, or partial atrio-ventricular septal defect, is an entity that is characterized by a different embryological mechanism and requires some specific surgical expertise. Basically, knowledge of the morphology of the common atrioventricular valve with 5 components, the topography of the A-V node and His bundle, and the ventricular consequences of the absence of atrio-ventricular septal structures must be taken into account.
authors.affiliation: Service de Chirurgie Cardio-Vasculaire et Thoracique, Hôpital Universitaire de Liège, CHU du Sart-Tilman, Liège, Belgique.
authors.forename: M A
authors.initials: MA
authors.lastname: Radermecker
authors.forename: R
authors.initials: R
authors.lastname: Fontaine
authors.forename: R
authors.initials: R
authors.lastname: Limet
mesh_terms: D006348:Cardiac Surgical Procedures / Q000379:methods*; D004694:Endocardial Cushion Defects / Q000401:mortality / Q000601:surgery*; D006343:Heart Septal Defects / Q000601:surgery; D006801:Humans; D016019:Survival Analysis; D016896:Treatment Outcome