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 directly ...

An ostium primum atrial septal defect (ASD) occurs when then atrial septum near the atrioventricular valves has a communication between the two atrium causing a left to right shunt. This rarely ...

An atrial septal defect is an opening or hole in the wall that sits between the heart’s two upper chambers. The heart’s upper chambers are called the right and left atria. Some people refer to atrial ...

This paper presents serial cardiac-catheterization data showing spontaneous functional closure of large symptomatic defects in 3 infants. One had an associated moderate-sized patent ductus arteriosus ...

Expert Rev Cardiovasc Ther. 2007;5(6):1135-1146. Diagnosing a secundum ASD is more often than not incidental because the defect normally causes symptoms late in adult life. Echocardiography and MRI ...

Beijing Zhongke Journal Publising Co. Ltd. Congenital heart defects (CHDs) are the most common birth defects, occurring in approximately 0.9% of live births. Sadly, they are also the leading cause of ...

PULMONARY hypertension is a serious and relatively frequent complication of the ostiumsecundum type of defect of the atrial septum. 1–4 It increases the symptoms and disability of cardio-respiratory ...

Atrial septal defect (ASD) is a hole in the wall between the heart’s two upper chambers. ASD is a congenital heart defect, meaning it is present from birth. In some cases of ASD, a small hole may only ...