The ostium primum atrial septal defect is a defect in the atrial septum at the level of the tricuspid and mitral valves. This is sometimes known as an endocardial cushion defect because it often involves the endocardial cushion, which is the portion of the heart where the atrial septum meets the ventricular septum and the mitral valve meets the ...

Primum atrial septal defect is a form of endocardial cushion defect involving the lowest part of the atrial septum, between the atrioventricular valves. Primum atrial septal defect is nearly always associated with abnormal development of the atrioventricular valves, most commonly a …

2025年1月21日 · ASD encompasses defects in the true septal membrane and other abnormalities that permit communication between the atria. The 5 types of ASD, listed from most to least frequent, include patent foramen ovale, ostium secundum defect, ostium primum defect, sinus venosus defect, and coronary sinus defect.

2024年1月23日 · Types of atrial septal defects (ASDs) include: Secundum. This is the most common type of ASD. It occurs in the middle of the wall between the upper heart chambers. This wall is called the atrial septum. Primum. This type of ASD affects the lower part of the wall between the upper heart chambers.

2025年3月17日 · Ostium primum ASD: a 22-month-old patient EKG with electrical axis at -5° (left axis deviation for his age). It is most often associated with cleft of the mitral septal leaflet, so it may be accompanied by varying degrees of mitral regurgitation.

2006年10月10日 · There are 3 major types of ASDs or interatrial communications: ostium secundum, ostium primum, and sinus venosus (Figure 1 A) defects. The ostium secundum is a true defect of the atrial septum and involves the region of the fossa ovalis.

An ostium primum atrial septal defect (ASD) occurs when then atrial septum near the atrioventricular valves has a communication between the two atrium...

An atrial septal defect (ASD) is a congenital heart defect. It’s a hole in the atrial septum, the muscular wall between the two upper chambers (atria) of your heart. Small ASDs usually don’t need treatment. Larger ones may require percutaneous (nonsurgical) repair or surgery to lower the risk of serious complications.

2020年10月12日 · An ostium primum atrial septal defect (ASD), as seen in the image below, is located in the most anterior and inferior aspect of the atrial septum....

An atrial septal defect (ASD) is an opening in the interatrial septum, causing a left-to-right shunt and volume overload of the right atrium and right ventricle. Children are rarely symptomatic, but long-term complications after 20 years of age include pulmonary hypertension, heart failure, paradoxical emboli, and atrial arrhythmias.