† Primum (2 patients), secundum (68 patients) and sinus defects (4 patients). § Surgical branch of the study. TEE = Transesophageal echocardiography. *Children and adults. † Percutaneous branch of the ...

Atrial septal defect is an abnormal hole in the fibrous membrane separating the two smaller, collecting chambers of the heart (atria). There are no clear reasons for the development of septal defects.

Congenital heart defects change the normal flow of blood through the heart. This is because some part of the heart didn't develop properly before birth. There are many types of congenital heart ...

An atrial septal defect is the persistence of a hole (the foramen ovale) in the wall (septum) between the right atrium and left atrium of the heart. The foramen ovale usually closes spontaneously ...

The most commonly seen defects at birth are congenital heart defects (CHD). These anomalies arise when there is a failure of the heart or its major blood vessels to form properly during embryonic ...

An atrial septal defect is an opening in the wall that separates the upper chambers of the heart. It is one of the most common congenital heart defects, which are structural problems that develop ...