title: Atrial septal defect with intermittent hypoxia due to venous return through a persistent left superior vena cava return draining into a contiguous coronary sinus. Case report.
abstract: A case is reported of a 38-month-old female patient with an ostium secundum-type atrial septal defect, 25 mm in diameter, with intermittent hypoxemia and hypoplasia of the right ventricular cavity and tricuspid valve The right-to-left shunt through the atrial septal defect, responsible for these alterations, is explained by its proximity to the coronary sinus, and exacerbated by a persistent left superior vena cava. The cyanosis disappeared and normal hemodynamic status was achieved after closure of the atrial septal defect.
authors.affiliation: Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brasil. conatik@incor.usp.br
authors.forename: Edmar
authors.initials: E
authors.lastname: Atik
authors.forename: Carla
authors.initials: C
authors.lastname: Tanamati
authors.forename: Miguel
authors.initials: M
authors.lastname: Barbero-Marcial
mesh_terms: D000015:Abnormalities, Multiple; D002675:Child, Preschool; D054326:Coronary Sinus / Q000002:abnormalities*; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000150:complications*; D006801:Humans; D000860:Hypoxia / Q000209:etiology*; D014683:Vena Cava, Superior / Q000002:abnormalities*