Figure 1From: Platypnea-orthodeoxia associated with a fenestrated atrial septal aneurysm: Case Report Aneurysmal atrial septal defect. (A) Transesophageal echocardiogram showing the left atrium (LA) and right atrium (RA). The atrial septal aneurysm can be seen bulging into the left atrium, and the ASD is shown (arrow). (B) Color flow Doppler across the atrial septum demonstrates multiple fenestrations with three distinct jets seen crossing the septum.Back to article page