Sinus venosus atrial septal defect presenting with platypnea-orthodeoxia syndrome in the setting of COVID-19 infection
Description
Platypnea-orthodeoxia syndrome is characterised by hypoxemia and dyspnoea while upright that resolves when supine, typically associated with an interatrial communication. We present a case of platypnea-orthodeoxia syndrome associated with a sinus
