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.
A developmental defect characterized by abnormal connection of one or more pulmonary veins to the superior or inferior vena cava, the right atrium, or the coronary sinus, resulting in a left-to-right shunt of oxygenated blood.
Percutaneous closure of isolated ostium secundum-type atrial septal defect in a patient with Mayer-Rokitansky-Kuster-Hauser syndrome.
Akcay M, Gulel O, Soylu K, Meric M, Elmali M. Rev Port Cardiol. 2016;35(12):701.e1-701.e3.
It is reported to be associated with cardiovascular disorders including atrial septal defect, anomalous pulmonary venous return, aortopulmonary window, pulmonary valve stenosis, mitral valve prolapse, tetralogy of Fallot, truncus arteriosus, and patent ductus arteriosus.
