fig30

Figure 30. Transesophageal echocardiographic images after the deployment of an Amplatzer Septal Occluder to close an atrial septal defect (ASD), illustrating the position of both discs in four-chamber (A), bi-caval (B) and long-axis (C) projections. It is important to ensure that the rims of the ASD (arrows) are sandwiched between the left atrial (LA) and right atrial (RA) discs. The left ventricle (LV), right ventricle (RV), and superior vena cava (SVC) are marked. Reproduced from Ref.^[30].