Patent foramen ovale platypnoea orthodeoxia syndrome


 * Associate Editors-In-Chief: Priyamvada Singh, M.B.B.S. [mailto:psingh@perfuse.org]; Assistant Editor-In-Chief: Kristin Feeney, B.S. [mailto:kfeeney@perfuse.org]

Overview
In platypnea-orthodeoxia syndrome the patient might complain of difficulty in breathing (dysnea) on assuming an upright posture. The syndrome can be seen in inter-atrial shunting like patent foramen ovale. In patent foramen ovale (PFO), the upright posture may increase shunting via the redirection of inferior vena cava (IVC) inflow towards the inter-atrial septum. The syndrome is also seen in conditions like right pneumonectomy, enlarged aortic root and prominent Eustachian valve