Ostium Primum Defect: Factors Causing Deterioration in the Natural History.

The persistent ostium primum atrial septal defect. (Partial persistent common atrioventricular canal).

The persistent ostium primum atrial septal defect.

Five patients with an ostium primum type of atrial septal defect were studied by clinical and laboratory methods and the diagnosis was verified either at the time of open-heart surgery and/or at autopsy. The atrioventricular valves formed the floor of the defect and were deformed in 4 of the 5 patients. Mitral insufficiency was present as a result of this valvular deformity in these four patien...

The Persistent Ostium Primum Atrial Septal Defect

Five patients with an ostium primum type of atrial septal defect were studied by clinical and laboratory methods and the diagnosis was verified either at the time of open-heart surgery and/or at autopsy. The atrioventricular valves formed the floor of the defect and were deformed in 4 of the 5 patients. Mitral insufficiency was present as a result of this valvular deformity in these four patien...

Atrial Septal Defects in the Adult

Nomenclature and Classification There are 3 major types of ASDs or interatrial communications: ostium secundum, ostium primum, and sinus venosus (Figure 1A) defects. The ostium secundum is a true defect of the atrial septum and involves the region of the fossa ovalis. The ostium primum defect is within the spectrum of the atrioventricular (AV) septal defects (Figure 1B; also known as AV canal d...

Surgical Experience of a Partial Atrioventricular Septal Defect in an Elderly Patient: A Case Report

The following paper describes patch closure (bovine pericardial sheet) of an ostium primum atrial septal defect and mitral valve repair (sutured mitral valve cleft + autologous pericardial annuloplasty + Alfieri’s method) in a 50-year-old man. He had been perfectly well until he was brought to the emergency room because of acute heart failure. Chest radiography revealed right-side heart enlarge...