Truncus arteriosus

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.

Interrupted aortic arch type A

Non-continuity of the aortic arch with an atretic point or absent segment at the level of the isthmus.

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PMID (PMCID)
17062266	FEMALE	Infant, Newborn
	Truncus arteriosus with interrupted aortic arch: successful repair using modified cardiopulmonary bypass and surgical techniques.
	Chen Q, Modi P, Caputo M, Pawade A. Ann Thorac Surg. 2006;82(5):1884-6.
	A neonate with truncus arteriosus (type 1) and interrupted aortic arch (type A) associated with an excessively large gap between interrupted aortic segments underwent successful reconstruction of the aortic arch with a partial subclavian flap aortoplasty plus bovine jugular patch (Contegra 200, Medtronic, Inc, Minneapolis, MN) using continuous selective low-flow cardiopulmonary bypass without circulatory arrest.