To the Editor.—
Persistent truncus arteriosus in an uncommon congenital cardiac anomaly with a poor prognosis. Recent advances in surgical technique have made corrective surgery possible in some children who survive until the age of 3 or 4 years. For this reason palliative procedures designed to tide these children over until that time are of increasing interest. The following is a report of an unusual palliative operation in a neonate with a persistent truncus arteriosus, reduced pulmonary blood flow, and severe cyanosis.
Report of a Case.—
The patient was admitted to the Boston Floating Hospital at 6 days of age, weighing 6 lb 8 oz. She was obviously cyanotic but in no acute distress. Pertinent physical findings were a normal heart size and a pansystolic murmur over the entire precordium with an early diastolic component. Cardiac catheterization revealed a large ventricular septal defect, with equal pressures in both ventricles and