An Informative Case of Superior Sinus-Venosus Atrial Septal Defect
Complicated by Partial Anomalous Pulmonary Venous Connection
Successfully Detected by Transthoracic Echocardiography Following
Computed Tomography Guidance
Abstract
We examined a 26-year-old female with a dilated right heart without
significant valvular disease. The first transthoracic echocardiography
(TTE) did not identify any intracardiac left to right shunt diseases. A
contrast-enhanced computed tomography scan showed a sinus-venous atrial
septal defect (ASD) and partial anomalous pulmonary venous connection. A
superior sinus-venous ASD at the ceiling of atrial septum and two
anomalous pulmonary veins connected to the superior vena cava and to the
right atrium, respectively, were visualized on the second TTE.
Three-dimensional anatomical understanding from multiple imaging
modalities may occasionally necessary to delineate rare congenital heart
diseases by echocardiography, particularly in adult with a limited echo
window.