An atrial septal defect (ASD) is an opening between the two upper chambers (atria) of the heart. Learn about the associated symptoms, dangers, and treatment.

<p>This short film begins with the diagnosis of two children - one with a harmless heart defect and one with an atrial septal secundum defect. Slow-motion animation with synchronized heart sounds and ...

Atrial septal defect (ASD) — also known as a "hole in the heart" — is a type of congenital heart defect. Most ASDs are diagnosed and treated successfully.

A 6 year old boy is found to have a fixed split second heart sound and a systolic murmur heard best at the left upper sternal border on routine physical examination. The presence of a secundum atrial ...

An atrial septal defect is a hole in the wall between the heart’s two upper chambers, and a ventricular septal defect is a hole in the wall between the two lower chambers.

Catheter-based closure is now considered the first-line treatment strategy for secundum atrial septal defects (ASD). Although in some cases, surgery remains the only option (eg, for those with an ...

Abstract OBJECTIVE To define by three dimensional echocardiography the pattern and potential determinants of contraction of a secundum atrial septal defect through the cardiac cycle, and to evaluate ...

King, T.D., Thompson, S.L., Steiner, C. and Mills, N.L. (1976) Secundum Atrial Septal Defect. Non Operative Closure during Cardiac Catheterization. Journal of the ...

*Cardiac catheterization and a left atrial cineangiogram showed a large left-to-right shunt through an apparent secundum atrial septal defect. The pulmonary-to-systemic ratio was calculated to be 4:1.

If the atrial septal defect is in the midportion of the septum, a special device called an atrial septal occluder device can be placed across the defect at the time of a heart catheterization ...