1 The Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minn.
2 The Department of Medicine, University of Minnesota Medical School, Minneapolis, Minn.
3 The Department of Roentgenology, University of Minnesota Medical School, Minneapolis, Minn.
Two patients with atypical findings of a patent ductus arteriosus are presented in whom right heart catheterization proved its existence by the catheter passing through the ductus into the aorta.
Right heart catheterization in one of these patients demonstrated a right descending aorta in the presence of a left aortic arch, the fourth patient with this anomaly to be reported.
Submitted on June 20, 1949