title: Right to left shunt through a patent foramen ovale without pulmonary hypertension.
abstract: This article describes a patient presenting with dyspnea and platypnea and whose only clinical finding was presence of patent foramen ovale with a right to left shunt, without pulmonary hypertension, characteristic of the rare Platypnea-Orthodeoxya Syndrome, with very interesting pathophysiological findings and with therapeutic alternatives not yet defined.
authors.affiliation: Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil. tlisboa@hotmail.com
authors.forename: Thiago Costa
authors.initials: TC
authors.lastname: Lisboa
authors.forename: Clarice Daniele Oliveira
authors.initials: CD
authors.lastname: Costa
authors.forename: Thiago Quedi
authors.initials: TQ
authors.lastname: Furian
authors.forename: Silvia Regina Rios
authors.initials: SR
authors.lastname: Vieira
mesh_terms: D000368:Aged; D004452:Echocardiography; D004562:Electrocardiography; D004947:Esophagus; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis* / Q000601:surgery; D006346:Heart Septum / Q000000981:diagnostic imaging / Q000601:surgery; D006801:Humans; D006976:Hypertension, Pulmonary; D008297:Male; D012129:Respiratory Function Tests; D014057:Tomography, X-Ray Computed