2006年10月10日 · 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 …

The ostium secundum atrial septal defect is the most common type of atrial septal defect and comprises 6–10% of all congenital heart diseases. It involves a patent ostium secundum (that …

2025年1月21日 · There are five types of atrial septal defects ranging from most frequent to least: patent foramen ovale, ostium secundum defect, ostium primum defect, sinus venosus defect, …

The frontal plane QRS is the most helpful clue to distinguish between an ostium secundum ASD and an ostium primum ASD. In primum defects left axis deviation is seen in most patients with …

2016年1月11日 · The most common type of ASD, the ostium secundum defect, is caused by a shortened valve of the foramen ovale (foraminal flap) resulting from excessive resorption of …

Atrial septal defect (ASD) is a common congenital abnormality that occurs in the form of ostium secundum, ostium primum, sinus venosus, and rarely, coronary sinus defects. …

2025年2月2日 · Ostium primum: they are the second most frequent ASD, up to 15%. It is located near the crux of the heart, and is usually associated with other defects such as mitral cleft, …