ArticleCureus2020
Platypnea-Orthodeoxia Syndrome: A Rare and Treatable Cause of Positional Dyspnea.
Article in Cureus, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Platypnea-Orthodeoxia Syndrome From Atrial Septal Defects: A Rare Primum Case and Literature Review.Cureus · 2025Article
- Hepatopulmonary Syndrome in a Patient With Autoimmune Hepatitis Without Liver Cirrhosis: A Case Report.Cureus · 2024Article
- Successful embolization of a clinically significant pulmonary arteriovenous malformation.Respirology case reports · 2024Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Platypnea-orthodeoxia means low oxygen saturation and dyspnea in the upright posture which improves on lying down. The causes can be classified into the intrapulmonary shunt, intracardiac shunt, and ventilation-perfusion mismatch. A 62-year-old male presented with shortness of breath, which had worsened over a period of one year. Various investigations were done to rule bacterial, viral infection, pulmonary embolism, and other respiratory and cardiac causes. The initial echocardiogram showed an ejection fraction of 55%. The patient was observed to be having dyspnea only in the upright position. In the recumbent position, the dyspnea disappeared with a marked improvement in oxygen saturation. A repeat echocardiogram with a bubble study was done which showed an atrial septal defect. Surgical closure of the defect was performed which improved the patient's oxygen saturation to baseline normal. This case demonstrates that a vigilant approach is required in cases of dyspnea, keeping in mind the not-so-common phenomenon like platypnea-orthodeoxia syndrome.
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Registered trials
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