title: Double atrial septum with persistent interatrial space: echocardiographic features of a rare atrial septal malformation.
abstract: We describe the echocardiographic features of 4 new cases of a rare atrial septal malformation consisting a double atrial septum with a midline chamber between the left and right atrium. Half of the cases had major left-sided obstructive lesions. Transthoracic, transesophageal, intracardiac, and fetal echocardiographic features of this anomaly are demonstrated. Previous descriptions, embryologic speculations, and clinical considerations are discussed.
authors.affiliation: Pediatric Echocardiography, The Heart Institute for Children, Hope Children's Hospital, Oaklawn, Illinois 60453, USA. david@thic.com
authors.forename: David A
authors.initials: DA
authors.lastname: Roberson
authors.forename: Alex J
authors.initials: AJ
authors.lastname: Javois
authors.forename: Wei
authors.initials: W
authors.lastname: Cui
authors.forename: Luisa F
authors.initials: LF
authors.lastname: Madronero
authors.forename: Bettina F
authors.initials: BF
authors.lastname: Cuneo
authors.forename: Sunthorn
authors.initials: S
authors.lastname: Muangmingsuk
mesh_terms: D000293:Adolescent; D000328:Adult; D003330:Coronary Vessel Anomalies / Q000000981:diagnostic imaging*; D003331:Coronary Vessels / Q000000981:diagnostic imaging*; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D008297:Male; D035583:Rare Diseases / Q000000981:diagnostic imaging; D014463:Ultrasonography