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. Pathophysiologic consequences of ASDs typically begin in adulthood, and include arrhythmia, paradoxical embolism, cerebral abscess, pulmonary hypertension, and right ...

The evaluation of abnormalities of the interatrial septum and their associated syndromes require a standardized, systematic approach to their echocardiographic and Doppler characterization, including the use of transthoracic echocardiographic (TTE), transesophageal echocardiographic (TEE), and intracardiac echocardiographic (ICE) ultrasound, thr...

2022年11月1日 · TTE A4CH view showing ASD primun. #primum #asd #echo

2009年11月8日 · Echocardiogram in apical four chamber view demonstrating a primum atrial septal defect (primum ASD). RV: right ventricle; LV: left ventricle; RA: right atrium; LA: left atrium; Primum ASD is part of the AV canal defect and is sometimes called a partial AV canal defect.

2024年10月22日 · The ostium primum is the gap between the septum and the cushions. Before the ostium primum closes, the ostium secundum must open, which lies near the atrial roof. The septum secundum forms by incomplete invagination of the atrial wall along the right atrial aspect of the septum primum leaving a bare area of septum primum at the fossa ovalis.

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.

Ostium Primum ASD is easily diagnosed in fetal echocardiography, while secundum ASD is virtually impossible to diagnose prenatally due to physiologically open vieussens valve through foramen ovale in fetus. Another subtype of partial ASVD is an inlet VSD.

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.

2025年2月5日 · The hallmark features of partial AVSD are (1) ostium primum ASD with no interventricular communication, and (2) two AV valve orifices with separate annuli. 5.1.1 Echocardiographic Diagnosis (Figs. 5.1 and 5.2) The internal cardiac crux and the ostium primum ASD can be visualized from the A4C view .

2022年6月18日 · This review centers on the usefulness of echo-Doppler studies in the diagnosis of ostium secundum atrial septal defects (ASDs) and in their management, both in children and adults. Transthoracic echocardiography can easily identify the secundum ASDs and also differentiate secundum ASDs from other ki …