Cardiovascular and interventional radiology
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Cardiovasc Intervent Radiol · Mar 2005
Multicenter StudyTranscatheter closure of patent foramen ovale in patients with platypnea-orthodeoxia: results of a multicentric French registry.
Dyspnea and the decrease in arterial saturation in the upright position in elderly subjects is described as platypnea-orthodeoxia syndrome (POS). POS is secondary to the occurrence of an atrial right-to-left shunt through a patent foramen ovale (PFO). ⋯ Percutaneous occlusion of the foramen ovale is safe and gives excellent results thanks to continuing improvement in available devices. This technique enables some patients in an unstable condition to avoid a surgical closure.