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Platypnoea-orthodeoxia syndrome in association with an ascending aortic aneurysm
M Townsend1, D H MacIver, R Bilku
1Department of Cardiology, Taunton and Somerset NHS Trust, Musgrove Park, UK. mandietownsend@yahoo.co.uk
Abstract:
Platypnoea-orthodeoxia syndrome is a uncommon condition presenting with dyspnoea and cyanosis that are characteristically worse in the upright posture and improved by lying supine. We present the case of a patient with a thoracic aortic aneurysm and a patent foramen ovale who presented with platypnoea-orthodeoxia syndrome. Diagnosis was established using transoesophageal echocardiography. We suggest a mechanism for the development of dyspnoea and hypoxia in patients with this disorder.
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