2022
DOI: 10.1093/ehjcr/ytac275
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Platypnea orthodeoxia syndrome after recent stroke: a case report of a sandwiched right atrium

Abstract: Background Platypnea orthodeoxia syndrome (POS) is a condition characterized by onset or worsening of dyspnoea and desaturation in upright position that is relieved by returning to a supine position. This case report illustrates a sudden onset of severe platypnea caused by compression of the right atrium (RA) due to aortic dilatation and unilateral diaphragmatic paralysis after a recent stroke. Case summary A 71-year-male pat… Show more

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“…Less frequently, right-to-left shunt was associated with right hemidiaphragm paralysis[ 43 , 44 ]. The mechanism was a redirection of blood flow from the inferior vena cava directly through the patent foramen ovale secondary to a distortion of cardiac anatomy induced by hemidiaphragmatic paralysis.…”
Section: Clinical Consequences Of Diaphragm Dysfunctionmentioning
confidence: 99%
“…Less frequently, right-to-left shunt was associated with right hemidiaphragm paralysis[ 43 , 44 ]. The mechanism was a redirection of blood flow from the inferior vena cava directly through the patent foramen ovale secondary to a distortion of cardiac anatomy induced by hemidiaphragmatic paralysis.…”
Section: Clinical Consequences Of Diaphragm Dysfunctionmentioning
confidence: 99%