2025年3月3日 · Atrial septal defect (ASD) is the second most common congenital heart defect after ventricular septal defect (VSD). Diagnosis is often delayed until adulthood when complications arise such as atrial arrhythmias or pulmonary hypertension.

2016年1月11日 · Any defect in the atrial septum other than a normal patent foramen ovale represents an atrial septal defect (ASD). ASDs are classified according to their embryogenesis, their location relative to the fossa ovalis, and their size.

2015年12月26日 · Atrial septal defect (ASD) is one of the most commonly recognized congenital cardiac anomalies in adults. Knowledge of the embryologic development of the atrial septum provides the basis for understanding the pathophysiology, anatomy, and …

Ostium primum ASD's result in the absence of the lower portion of the atrial septum (just above the atrioventricular valves). The septal leaflet of the tricuspid valve and anterior leaflet of the mitral valve insert at the same level (normally the tricuspid valve inserts slightly more apical than the anterior leaflet of the mitral valve).

2012年11月20日 · Atrial septal defect (ASD) is characterized by defect in a portion of the atrial septum. It is the fifth most common congenital heart disease, seen in 1 of 1500 live births [ 1 ], and is caused by abnormal tissue resorption and deposition during development of …

An atrial septal defect (ASD) is an opening within the atrial septum, resulting in a communication between the upper chambers of the heart, the right and left atria. This allows some of the oxygenated (red) blood coming back from the lungs to get re-circulated back through the lungs.

2025年3月4日 · A secundum atrial septal defect (ASD) is the most common congenital abnormality of the interatrial septum. It describes a defect in the center of the interatrial septum in the region of the fossa ovalis and is most commonly due to a discontinuity in the portion of the septum derived from the embryologic septum primum 1 .

Transthoracic echocardiography can easily identify the secundum ASDs and also differentiate secundum ASDs from other kinds of ASDs, such as ostium primum ASD, sinus venosus ASD and coronary sinus ASD, as well as patent foramen ovale.

2009年8月24日 · Prenatal ultrasound diagnosis of pAVSD is feasible and is based on recognition of the ostium primum atrial septal defect associated with loss of the normal offset appearance of the atrioventricular valves in the four-chamber view.

2023年8月7日 · Atrial septal defect (ASD) is one of the most common types of congenital heart defects, occurring in about 25% of children. An atrial septal defect occurs when there is a failure to close the communication between the right and left atria. It encompasses defects involving both the true septal membra …