The three major types of ASDs are: Secundum - This defect is in the middle of the atrial septum. It's the most common form of ASD. About 8 out of every 10 babies born with ASDs have secundum defects.

Figure B shows a heart with an atrial septal defect, which allows oxygen-rich blood from the left atrium to mix with oxygen-poor blood from the right atrium. An ASD can be small or large.

Atrial septal defects can be divided into three major types – secundum, primum and sinus venosus. The secundum type of defect is the most common (80% of all ASD’s) type.

Also, the murmur of an ASD does not increase in intensity with inspiration like that of pulmonic stenosis. A primum atrial septal defect is diagnosed on transthoracic echocardiography.

Gianluca Rigatelli; Paolo Cardaioli; Ziyad M Hijazi Disclosures Expert Rev Cardiovasc Ther. 2007;5 (6):1135-1146.

When an atrial septal defect is present, some oxygen-rich blood that should have been pumped to the body flows from one side of the heart to the other. This blood is then pumped to the lungs. This ...

Acyanotic heart disease is a type of congenital heart defect that causes abnormal blood flow. It can range from mild to severe. Babies with the condition can seem out of breath and fatigued.

Atrial septal defect (ASD) is one of the most common congenital heart diseases. The diagnosis of ASD via transthoracic echocardiography is subjective and time-consuming. The objective of this ...

Congenital Heart Defect Awareness Day is observed on February 14 every year. All you want to know from significance to types of congenital heart defects.

An atrial septal defect of the secundum type is relatively common and occurs from failure of the septum secundum to develop. This results in a communication between the left and right atrium ...

For the other, more complex, types of defects, the advancements in minimally invasive surgery may make their repair simpler and safer with faster recovery. 1 2 3 4 5 6 7 Next Section Reprint Address ...