Hypoxemia after Prior Cardiac Surgery Due to Interatrial Shunting and Its Treatment with a Novel Transcatheter Occlusion Device.

We describe two unusual cases of hypoxemia after cardiac surgery due to intracardiac right-to-left shunting through a patent foramen ovale or atrial septal defect. The interatrial defects were successfully occluded by placement of a novel, transcather device, the Angelwings Atrial Septal Defect Occluder Device, with resolution of hypoxemia. Cathet. Cardiovasc. Intervent. 46:452–456, 1999. © 1999 Wiley-Liss, Inc.