title: Subvalvar pulmonary obstruction complicating the postoperative course of balloon atrial septostomy in transposition of the great arteries.
mesh_terms: D000790:Angiocardiography; D006328:Cardiac Catheterization; D006325:Heart Atria; D006345:Heart Septal Defects, Ventricular / Q000150:complications; D006346:Heart Septum / Q000601:surgery*; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008722:Methods; D011183:Postoperative Complications; D011651:Pulmonary Artery / Q000601:surgery*; D014188:Transposition of Great Vessels / Q000601:surgery*