2024年5月15日 · Dextro-Transposition (pronounced DECKS-tro trans-poh-ZI-shun) of the Great Arteries or d-TGA is one type of congenital heart defect. Congenital means present at birth. This condition occurs when the heart's two main arteries carrying blood out of the heart are switched in position, or “transposed.”

2024年9月30日 · Dextro-TGA (d-TGA) occurs during cardiac development when the conotruncal septum, which normally spirals toward the aortic sac, forms linearly. This anomaly interferes with the normal division of the truncus arteriosus into the pulmonary and aortic channels, which form the pulmonary arteries and aorta.

2025年1月8日 · D-TGA is a form of cyanotic heart disease because there are two parallel circulations. The anatomy, pathophysiology, clinical features, and diagnosis of D-TGA will be presented here. The management and outcome of D-TGA are discussed separately. (See "D-transposition of the great arteries (D-TGA): Management and outcome".)

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

2025年1月4日 · Transposition of the great arteries (TGA), also known as transposition of the great vessels (TGV), is the most common cyanotic congenital cardiac anomal y presenting during the newborn period, with cyanosis in the first 24 hours of life.

Transposition of the great arteries (TGA) is a broad term that includes both dextro-TGA (d-TGA) and a rarer defect called levo-TGA (l-TGA). d-TGA: A more common variation in which the aorta is positioned to the right and front of the pulmonary artery, arising from …

With d-TGA, deoxygenated blood from the right heart is pumped immediately through the aorta and circulated to the body and the heart itself, bypassing the lungs altogether, while the left heart pumps oxygenated blood continuously back into the lungs through the pulmonary artery.

Dextro-transposition, or d-transposition, of the great arteries is a life-threatening heart birth defect that arises when the two “great” (or main) arteries within the heart are switched, or transposed, so that each one carries blood to the wrong location. This severely limits the heart’s ability to provide the body with oxygen-rich blood.

Transposition of the great arteries (D-TGA) is a conotruncal abnormality characterized by discordant ventricular-arterial connections. In D-TGA, the aorta arises from the right ventricle and pulmonary artery arises from the left ventricle.

2018年6月29日 · In D-TGA, the deoxygenated blood entering the heart gets pumped directly to the body without going through the lungs, and oxygenated blood coming from the lungs gets sent back to the lungs rather than out to the body.