Platypnoea-orthodeoxia from kyphoscoliosis and diaphragmatic dysfunction without intracardiac shunt on transthoracic echocardiography
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Platypnoea-orthodeoxia syndrome (POS) is a rare cause of posture-dependent hypoxaemia, usually linked to intracardiac right-to-left shunts. We report an elderly woman with progressive dyspnoea and recurrent falls whose oxygen saturation fell from 95% supine to... ...
