title: Echocardiographically assisted balloon atrial septostomy for transposition of the great arteries.
mesh_terms: D006328:Cardiac Catheterization; D004452:Echocardiography; D006343:Heart Septal Defects / Q000601:surgery; D006346:Heart Septum / Q000601:surgery*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D014188:Transposition of Great Vessels