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José Pedro Abreu Fernandes, João Santos Faria, Andreia Fernandes, Ana Rita Ramalho, Adriana Girão, Maja Petrova
2022-08-19
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Platypnoea-orthodeoxia syndrome (POS) is a condition characterized by dyspnoea and hypoxaemia while sitting or standing, which improves during decubitus. It is usually caused by intracardiac right-to-left shunting through a patent foramen ovale but may also occur due to pulmonary ventilation-perfusion mismatch of other aetiologies. A new cause of POS was recently described: SARS-CoV-2 pneumonia. We report the case of a 62-year-old man admitted for SARS-CoV-2 pneumonia with respiratory failure. Chest computed tomography angiography showed pulmonary thromboembolism and parenchymal lung changes compatible with COVID-19. He had worsening dyspnoea in a sitting position, relieved by assuming the dorsal position. He was diagnosed with POS after other causes were excluded. POS is an underdiagnosed complication of COVID-19 and is manageable with respiratory rehabilitation.
Vânia Rodrigues, Tiago Gomes, Adriana Santos Silva, Rita Rocha, Ana Ferrão
2019-02-22
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Platypnoea-orthodeoxia syndrome (POS) is an uncommon clinical entity characterized by dyspnoea and hypoxaemia induced by upright posture and relieved by recumbence. It is often associated with right-to-left shunting through a patent foramen ovale (PFO) or an atrial septal defect. We report the case of a 79-year-old woman with hypoxaemia initially attributed to a pulmonary infection but persisting after successful treatment. Being in the upright position triggered the hypoxaemia. A thoracic CT angiogram and ventilation/perfusion lung scan excluded a pulmonary embolism, but a transoesophageal echocardiogram with a bubble test showed a PFO with a right-to-left shunt, without pulmonary hypertension. The patient underwent percutaneous closure of the PFO which led to prompt symptom relief and full functional recovery.
2.1 = | 1.730 Cit. to date |
842 Docs. to date |
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