Technique of interdigitating flaps for repair of abnormal origin of right pulmonary artery from ascending aorta

Abnormal origin of right pulmonary artery from ascending aorta (Hemitruncus) is a very rare entity. Management includes surgical correction involving detachment of the right pulmonary artery from the ascending aorta and its implantation onto the main pulmonary artery.We successfully employed a novel technique of implantation of the right pulmonary artery onto the main pulmonary artery, passing anterior to the ascending aorta. This includes interdigitating two aortic wall flaps on either side, with a pulmonary artery flap in the centre, forming the posterior 2/3rd of the anastomosis. The remainder of the reconstruction was completed by treated autologous pericardium.