Truncus arteriosus (TA) is a rare congenital cardiovascular anomaly characterized by a single arterial trunk arising from the heart by means of a single semilunar valve (<I>i.e.</I> truncal valve). Pulmonary arteries originate from the common arterial trunk distal to the coronary arteries and proximal to the first brachiocephalic branch of the aortic arch. TA typically overrides a large outlet ventricular septal defect (VSD). The intracardiac anatomy usually displays situs solitus and atrioventricular (AV) concordance.
Successful reoperation for severe left bronchus compression after repair of persistent truncus arteriosus with interrupted aortic arch.
Tlaskal T, Hucin B, Kostelka M, Skovranek J. Eur J Cardiothorac Surg. 1998;13(3):306-9.
Signs of the left bronchus compression, caused by aneurysmatic dilatation of the aortic root with severe aortic regurgitation, occurred 5 months after repair of the truncus arteriosus with interrupted aortic arch in an 85-day-old infant.
