what are the Recommendations for Atrial Septal Defect?
Surgical closure of a secundum ASD in adults is reasonable when a concomitant surgical procedure is being performed and there is a net left-to-right shunt sufficiently large to cause physiological sequelae (eg, Qp:Qs 1.5:1 or greater) and right atrial and RV enlargement without cyanosis at rest or during exercise.S