When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Atrial septal defect - Wikipedia

   en.wikipedia.org/wiki/Atrial_septal_defect

   Atrial septal defect (ASD) is a congenital heart defect in which blood flows between the atria (upper chambers) of the heart.Some flow is a normal condition both pre-birth and immediately post-birth via the foramen ovale; however, when this does not naturally close after birth it is referred to as a patent (open) foramen ovale (PFO).

3. Interatrial septum - Wikipedia

   en.wikipedia.org/wiki/Interatrial_septum

   An Atrial septal defect is a relatively common heart malformation that occurs when the interatrial septum fails to develop properly. Persistence of the ostium secundum is the most common atrial septal defect. [3] Additionally, in a subset of the population, the foramen ovale is not overtly patent but the two septa have not fused.

4. Aneurysm - Wikipedia

   en.wikipedia.org/wiki/Aneurysm

   An aneurysm is an outward bulging, likened to a bubble or balloon, caused by a localized, ... There are congenital atrial septal aneurysms, a rare heart defect.

5. Primary interatrial foramen - Wikipedia

   en.wikipedia.org/wiki/Primary_interatrial_foramen

   Failure of the septum primum to fuse with the endocardial cushion can lead to an ostium primum atrial septal defect. [1] This is the second most common type of atrial septal defect [2] and is commonly seen in Down syndrome. Typically, this defect will cause a shunt to occur from the left atrium to the right atrium.

6. Foramen secundum - Wikipedia

   en.wikipedia.org/wiki/Foramen_secundum

   Foramen secundum atrial septal defects are the most common atrial septal defects. This defect can arise as a result of defects of the septum primum and the septum secundum. For the septum primum, the problem can arise as a result of excess resorption of the septum during the process of apoptosis in order to form the foramen secundum.

7. Fossa ovalis (heart) - Wikipedia

   en.wikipedia.org/wiki/Fossa_ovalis_(heart)

   This pouch can protrude into the right atrium or the left atrium. The cause of this aneurysm is the result of abnormal, increased pressure within the heart. Even if the foramen ovale does seal shut, an aneurysm may occur, usually on the side of the right atrium. If the aneurysm stretches too far, it can narrow the opening of the inferior vena ...

8. Cardiac shunt - Wikipedia

   en.wikipedia.org/wiki/Cardiac_shunt

   Atrial septal defect with left-to-right shunt. The left and right sides of the heart are named from a dorsal view, i.e., looking at the heart from the back or from the perspective of the person whose heart it is. There are four chambers in a heart: an atrium (upper) and a ventricle (lower) on both the left and right sides. [1]

9. Ventricular aneurysm - Wikipedia

   en.wikipedia.org/wiki/Ventricular_aneurysm

   The word aneurysm refers to a bulge or 'pocketing' of the wall or lining of a vessel commonly occurring in the blood vessels at the base of the septum, or within the aorta. In the heart, they usually arise from a patch of weakened tissue in a ventricular wall , which swells into a bubble filled with blood. [ 1 ]