Overriding aorta
From Infogalactic: the planetary knowledge core
| Overriding aorta | |
|---|---|
Diagram of a healthy heart and one suffering from overriding aorta
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| Classification and external resources | |
| Specialty | Lua error in Module:Wikidata at line 446: attempt to index field 'wikibase' (a nil value). |
| ICD-10 | Q25.4 (EUROCAT Q25.42) |
| ICD-9-CM | 747.21 |
| Patient UK | Overriding aorta |
An overriding aorta is a congenital heart defect where the aorta is positioned directly over a ventricular septal defect (VSD), instead of over the left ventricle. The result is that the aorta receives some blood from the right ventricle, causing mixing of oxygenated and deoxygenated blood, and thereby reducing the amount of oxygen delivered to the tissues.
It is one of the four findings in the classic tetralogy of Fallot. The other three findings are right ventricular outflow tract (RVOT) obstruction (most often pulmonary stenosis), right ventricular hypertrophy (RVH), and the aforementioned VSD.
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