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Truncus arteriosus

Disease definition

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.e. 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.


Classification level: Disorder
  • Synonym(s):
    • Common aorticopulmonary trunk
    • Common arterial trunk
    • TAC
  • Prevalence: Unknown
  • Inheritance: Autosomal recessive or Not applicable 
  • Age of onset: Infancy, Neonatal
  • ICD-10: Q20.0
  • ICD-11: LA85.4
  • OMIM: 217095
  • UMLS: C0041207
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information

General public


ERN : produced/endorsed by ERN(s)
FSMR : produced/endorsed by FSMR(s)
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