fig34

Figure 34. Echo-Doppler studies in subcostal long (A, B) and short (C, D) axis projections of the atrial septum demonstrating intact atrial septum (A-D) and no residual shunt (B, D) across the atrial septum. A large atrial septal defect was surgically repaired with a patch one year prior to this echocardiographic study. The arrows in (A)-(D) point to the echogenic patch used to close the atrial septal defect. Left atrium (LA), right atrium (RA), and superior vena cava (SVC) are labeled.