title: Cor triatriatum dexter versus prominent Eustachian valve in an adult congenital heart disease patient.
abstract: An eustachian valve (EV) remnant, if present, is usually noted by the presence of a thin ridge or a crescent-shaped fold of endocardium arising from the anterior rim of the inferior vena cava orifice due to the persistence of the right sinus venosus valve. Though the embryologic explanation of cor triatriatum dexter (CTD) is the same as that of the normal formation of the EV--lack of regression of the right sinus venosus valve--it is usually called CTD or divided right atrium when there are attachments on the atrial septum giving the appearance of a divided atrium. However, it's called prominent eustachian valve when the right sinus venosus valve has partly regressed, with no remaining septal attachments and without the appearance of a divided atrium. We present the case of an adult patient with an atrial septal defect with a high insertion of a giant EV, which mimics the echocardiographic appearance of divided right atrium.
authors.affiliation: Cardiology Radiology Service, Insular-Materno Infantil University Hospital, Las Palmas de Gran Canaria, Spain Dr. Negrín, University Hospital Las Palmas de Gran Canaria, Spain Department of Cardiac Surgery, 12 de Octubre, University Hospital Madrid, Spain.
authors.forename: Efrén
authors.initials: E
authors.lastname: Martínez-Quintana
authors.forename: Fayna
authors.initials: F
authors.lastname: Rodríguez-González
authors.forename: Hector
authors.initials: H
authors.lastname: Marrero-Santiago
authors.forename: Jose
authors.initials: J
authors.lastname: Santana-Montesdeoca
authors.forename: María Jesús
authors.initials: MJ
authors.lastname: López-Gude
mesh_terms: D000328:Adult; D006348:Cardiac Surgical Procedures; D003310:Cor Triatriatum / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D003937:Diagnosis, Differential; D017548:Echocardiography, Transesophageal; D004699:Endocardium / Q000002:abnormalities* / Q000000981:diagnostic imaging; D006330:Heart Defects, Congenital / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D006344:Heart Septal Defects, Atrial / Q000175:diagnosis; D006801:Humans; D008297:Male; D011237:Predictive Value of Tests; D014057:Tomography, X-Ray Computed; D014682:Vena Cava, Inferior / Q000002:abnormalities* / Q000000981:diagnostic imaging