B. Monrozier

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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). This French multicentric study reports on 78 patients (mean age 67 ± 11.3 years) with POS who had(More)
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