 After this complex plastic reconstruction using flaps from the right atrial tissue and the interatrial septum and lets the oxygenated pulmonary venous blood flow to the tricuspid valve and from there to the systemic circulation.The anatomic left ventricle continues to pump into the pulmonary circulation and the anatomic right ventricle will work as the systemic pump, in other words the ventriculo-arterial mismatch is left unrepaired.In the Senning's operation, atrial tissue is used to create the baffle.