1 Departments of Pediatrics and Radiology, School of Medicine, University of California at Los Angeles
Four patients are presented to show how associated defects, such as ordinary transposition and interventricular septal defect, may confuse the diagnosis of corrected transposition of the great vessels. Three patients had interventricular defects, one of whom also had a patent ductus arteriosus associated with the primary defect.
The diagnoses were confirmed by surgery in two patients, and necropsy examination in one of these. Cardiac catheterization and angiocardiography should be performed prior to surgical repair in patients suspected of having an interventricular septal defect.
Submitted on June 4, 1957