Atrial Septal Defect (ASD): Causes, Symptoms & Treatment

Atrial Septal Defect (ASD)

ASD is a congenital heart defect where the septum between the atria (upper chambers) fails to close properly, leaving a hole.

This allows abnormal mixing of oxygenated and deoxygenated blood. Severity ranges from small (minimal symptoms) to large (significant health problems).

Treatment

Depending on size/location: surgical repair or transcatheter device closure.

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