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Start free with EleplanCongenitally uncorrected transposition of the great arteries
ORPHA:860Morphological anomaly
Also called Discordant ventriculoarterial connections · Transposition of the great vessels
What it is
A rare congenital cardiac malformation characterized by a connection of the morphologically right ventricle to the aorta, and of the morphologically left ventricle to the pulmonary trunk (atrioventricular concordance and ventriculoarterial VA discordance).
Key facts
- Prevalence
- 1-5 / 10 000 (at birth)
- Age of onset
- Antenatal, Infancy, Neonatal
- Inheritance
- Multigenic/multifactorial, 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
Very common80–99%
7Common30–79%
19- Abnormal aortic arch morphology
- Abnormal coronary artery morphology
- Abnormal mitral valve morphology
- Abnormal pulmonary valve morphology
- Abnormal QRS complex
- Anomalous pulmonary venous return
- Atrial septal defect
- Biventricular hypertrophy
- Cardiomegaly
- Congestive heart failure
- Dextrotransposition of the great arteries
- Failure to thrive
- Hyperhidrosis
- Left ventricular outflow tract obstruction
- Levotransposition of the great arteries
- Patent ductus arteriosus
- Right ventricular hypertrophy
- Tachypnea
- Ventricular septal defect
Sometimes5–29%
5These 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.
Genes reported in subtypes
Orphanet records these genes on 3 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
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
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
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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