Hi everyone! This is a short post :)
Platypnea (flat breathing): Dyspnea induced by upright posture and relieved by recumbency.
Orthodeoxia: Arterial oxygen desaturation accentuated by upright posture and improved by recumbency.
Etiology: Interatrial right-to-left shunt through a patent foramen ovale, or an atrial septal defect or an atrial septal aneurysm.
Pathophysiology: Incompletely understood. Standing upright could stretch the interatrial communication, be it a patent foramen ovale, an atrial septal defect, or a fenestrated atrial septal aneurysm, thus allowing more streaming of venous blood from inferior vena cava through the defect.
Treatment: percutaneous transcatheter closure of interatrial shunting.
-IkaN
(Fan of Perry, the Platypus)
Platypnea (flat breathing): Dyspnea induced by upright posture and relieved by recumbency.
Orthodeoxia: Arterial oxygen desaturation accentuated by upright posture and improved by recumbency.
Etiology: Interatrial right-to-left shunt through a patent foramen ovale, or an atrial septal defect or an atrial septal aneurysm.
Pathophysiology: Incompletely understood. Standing upright could stretch the interatrial communication, be it a patent foramen ovale, an atrial septal defect, or a fenestrated atrial septal aneurysm, thus allowing more streaming of venous blood from inferior vena cava through the defect.
Treatment: percutaneous transcatheter closure of interatrial shunting.
-IkaN
(Fan of Perry, the Platypus)
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