Truncus arteriosus, also referred to as common arterial trunk (CAT), is generally classified as a cyanotic congenital heart disease characterized by a single arterial trunk arising from the heart and supplying both pulmonary and systemic circulations. Cyanosis exists by virtue of it being an admixture lesion. We report a 13-year-old boy diagnosed to have type 1 CAT who was acyanotic at presentation and had all features of an operable lesion even at this age. He underwent a successful repair with closure of the subtruncal VSD and insertion of a hand-sewn valved right ventricle-to-pulmonary artery conduit made of bovine pericardium and Gore-Tex membrane.
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