2023年4月4日 · Transposition of the great arteries (TGA) is a serious, rare heart problem in which the two main arteries leaving the heart are reversed. The condition is present at birth, which means it's a congenital heart defect. There are two types of transposition of the great arteries:

The American Heart Association explains the congenital heart defect l-Transposition of the great arteries in children and adults.

2023年1月18日 · Levo- or L-looped transposition of the great arteries (L-TGA) is a rare form of congenital heart disease characterized by atrioventricular (AV) and ventriculoarterial discordance (figure 1). It is also commonly referred to as congenitally corrected TGA, double discordance, or ventricular inversion.

In dextro-transposition of the great arteries (d-TGA), the aorta arises from the right ventricle and the pulmonary trunk from the left ventricle, resulting in 2 parallel circuits that are incompatible with life unless there is a shunt, such as a patent ductus …

In TGA, your child’s aorta is connected to the right ventricle, and the pulmonary artery is connected to the left ventricle. This is the reverse of a normal heart. A newborn with TGA will usually have bluish skin color in the first days of life.

Transposition of the great arteries (in this case, dextro-transposition) occurs when the aorta arises directly from the right ventricle and the pulmonary artery arises from the left ventricle, resulting in independent, parallel pulmonary and systemic circulations; oxygenated blood cannot reach the body except through openings connecting the ...

The Aorta arises from the right ventricle and receives "blue" blood, whilst the Pulmonary Artery arises from the left ventricle. The baby becomes blue immediately after birth and needs urgent treatment. Survival depends on the ductus or the Foramen Ovale remaining open in the early days of life until treatment can be applied.

2025年1月4日 · Transposition of the great arteries occurs as a result of ventriculoarterial discordance, with the aorta arising from the right ventricle and the pulmonary trunk from the left ventricle. It can be subdivided into two main types depending on the positional relationship of the aortic valve with the pulmonary valve :

In L-TGA, the aorta is in front of the pulmonary artery and to the left (levo) of the pulmonary artery. In addition the ventricles (lower chambers) are also inverted. This means oxygen-poor blood circulates through the right side of the heart and back to …

2025年2月5日 · TGA refers to the discordant ventriculo-arterial connection, where the aorta arises from the morphological RV, and the pulmonary artery arises from the morphological LV. The diagnosis and evaluation of both types of TGA (d-TGA and l-TGA) are covered in this chapter.