Abstract:Background
Platypnoea–orthodeoxia syndrome (POS) is a rare condition characterized by hypoxaemia and dyspnoea when changing from a recumbent to an upright position. Diagnosis requires a high clinical suspicion and is often underdiagnosed.
Case summary
We report a case of POS in a 50-year-old woman with dyspnoea and new-onset atrial fibrillation. Oxygen saturation and dyspnoea worsened as she changed from a supine to a sitting… Show more
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