Ventricular septal defect affects the ventricles common in babies with down syndrome while atrial septal defect is affecting the atrium.

No. Currently, there are no medication treatment options for atrial septal defect.

The scientific name for a hole in the heart is a "ventricular septal defect (VSD)" or an "atrial septal defect (ASD)", depending on the location of the hole.

An atrial septal defect is a MECHANICAL problem of the heart, a structural defect in the heart itself. With that being said, the answer is no. Usually a defect is corrected by surgical intervention.

during the preschool years