Abstract

Two cases of double-outlet right ventricle in which surgical correction was successful are described. The diagnosis of this lesion should always be suspected in apparently large ventricular septal defects with pulmonary hypertension at systemic level, and further investigation by double catheterization or by angiography should be carried out. The catheterization data do not give accurate measurements of the pulmonary and systemic flows and resistances and are of no help in forecasting the results of surgical treatment.