Common arterial trunk

What it is

A rare congenital cardiac malformation characterized by a single arterial trunk arising from the heart, giving origin sequentially to the coronary arteries, one or more pulmonary arteries, and the systemic arterial circulation. Two forms exist: common arterial trunk (CAT) with aortic dominance (unobstructed aortic arch) and one or both pulmonary arteries originating from the trunk, and CAT with pulmonary dominance and interrupted aortic arch or coarctation.

Key facts

Prevalence

1-9 / 100 000 (at birth)

Age of onset

Infancy, Neonatal

Inheritance

Not applicable

Classified as

Morphological anomaly

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

Gene

Genes reported in subtypes

Orphanet records these genes on 2 more specific entries under this disorder, not on this entry itself:

A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.

ICD-10 codes

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references