Truncus arteriosus communis (TAC)


A median sternotomy is performed and the heart-lung machine connected to the patient. The right and left pulmonary arteries are temporarily occluded and the heart action is stopped by cardioplegia. After opening of the ascending aorta the pulmonary artery or arteries is/are cut out of the posterior wall of the aorta and the resulting defect is augmented with an autologous pericardial patch. The VSD is closed via the opened right ventricular outflow tract. A connection between the right ventricle and the pulmonary arteries is created directly or by means of a valve-bearing conduit.

TAC Operation