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Aliases:
Transposition of the great vessels (TGV)

Topic aliases are alternate phrasings for a particular topic.


"A congenital cardiovascular malformation in which the AORTA arises entirely from the RIGHT VENTRICLE, and the PULMONARY ARTERY from the LEFT VENTRICLE. Consequently, the pulmonary and the systemic circulations are parallel and not sequential, so that the venous return from the peripheral circulation is re-circulated by the right ventricle via aorta to the systemic circulation without being oxygenated in the lungs. This is a potentially lethal form of heart disease in newborns and infants."
www.nlm.nih.gov/cgi/mesh/...

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Frequency - TGA accounts for 5% of cases of congenital heart-disease-chd.
1. TGA with intact ventricular septum (IVS) is the most common (85%)
2. TGA with VSD accounts for 10-25% of cases
3. TGA with VSD and LVOTO the rest
Andropolous p346

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When preductal saturations are lower than postductal saturations consider TGA as a differential.

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