Atrial septal defect (ASD) is a congenital heart defect in which the wall that separates the upper heart chambers (atria) does not close completely. Congenital means the defect is present at birth.
ASD
In fetal circulation, there is normally an opening between the two atria (the upper chambers of the heart) to allow blood to bypass the lungs. This opening usually closes around the time the baby is born.
If the...
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Source: HealthCentral Encyclopedia
Atrioventricular (AV) septal defects comprise a range of malformations characterized by varying degrees of incomplete development of the inferior... Read more »
Source: ADAM Encyclopedia
Ventricular septal defect describes one or more holes in the wall that separates the right and left ventricles of the heart. Ventricular septal... Read more »
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Source: Medifocus Guidebook on: Atrial Fibrillation
What is Atrial Fibrillation?The heart is a muscle that functions as a double-sided pump and consists of four chambers. The two upper chambers are... Read more »