Sinus venosus atrial septal defect
Encyclopedia
A Sinus venosus atrial septal defect is a type of atrial septal defect
primarily associated with the sinus venosus
.
They represent 10% of atrial septal defects.
They can occur near the superior vena cava
or inferior vena cava
, but the former are more common.
They can be associated with anomalous pulmonary venous connection
.
Atrial septal defect
Atrial septal defect is a form of congenital heart defect that enables blood flow between the left and right atria via the interatrial septum. The interatrial septum is the tissue that divides the right and left atria...
primarily associated with the sinus venosus
Sinus venosus
The sinus venosus is a large quadrangular cavity which precedes the atrium on the venous side of the chordate heart. In humans, it exists distinctly only in the embryonic heart, where it is found between the two venae cavae...
.
They represent 10% of atrial septal defects.
They can occur near the superior vena cava
Superior vena cava
The superior vena cava is truly superior, a large diameter, yet short, vein that carries deoxygenated blood from the upper half of the body to the heart's right atrium...
or inferior vena cava
Inferior vena cava
The inferior vena cava , also known as the posterior vena cava, is the large vein that carries de-oxygenated blood from the lower half of the body into the right atrium of the heart....
, but the former are more common.
They can be associated with anomalous pulmonary venous connection
Anomalous pulmonary venous connection
Anomalous pulmonary venous connection is a congential defect of the pulmonary veins.Types include:* Total anomalous pulmonary venous connection* Partial anomalous pulmonary venous connection...
.