What happens in transposition of the great vessels?
During this surgery, the arteries are left in place, but a tunnel (baffle) is created between the top chambers (atria) of the heart. This tunnel allows oxygen-poor blood to move from the right atrium to the left ventricle and out the pulmonary artery to the lungs.
Which septum is the main cause of transposition of the great arteries?
The most common associated problem is a ventricular septal defect (3). This is a defect or hole in the wall that separates the lower two chambers of the heart, the ventricles. There may be narrowing of the area of the heart where blood flows out to the pulmonary artery.
What causes baby TGA?
TGA is a congenital heart defect. This means it’s a problem with the heart’s structure that your child was born with. The exact cause is unknown, but most cases seem to occur by chance.
Can transposition of the great arteries be passed down?
Background Transposition of the great arteries (TGA) is considered to be associated only rarely with genetic syndromes and to have a low risk of precurrence among relatives of affected patients.
How successful is TGA surgery?
The survival of children with transposition has improved dramatically over recent decades. When there are no unusual risk factors identified, over 95 percent of infants successfully undergo surgery in the newborn period.
How long can you live after TGA surgery?
The survival rate at 11.3±4.9 years post-ASO was 96%, and the re-operation-free rate was 96%, 90%, 87%, and 83% after 5, 10, 15, and 20 years of follow-up, respectively (Fig. 4).
How long do TGA patients live?
Corrected transposition of the great arteries is a rare condition, and few patients with this abnormality survive past 50 years of age because of associated congenital defects or the subsequent development of atrioventricular valvular insufficiency or heart block or both.
How long does TGA surgery take?
The surgery to repair TGA is known as an arterial switch operation. A pediatric heart surgeon performs the surgery. The surgery lasts about 4 to 6 hours. It takes place in an operating room in a hospital.
Can transposition of the great arteries cause brain damage?
Brain injury, impaired brain growth, and long-term neurodevelopmental problems are common in children with transposition of the great arteries.
What does transposition of the great arteries mean?
Transposition of the great arteries (TGA) is a type of congental heart defect. This means that your baby is born with it. In this condition, the large blood vessels that carry blood from the heart to the lungs and body aren’t connected as they should be.
How often does transposition of the great vessels occur?
Surgery is an essential part of the treatment plan in most cases. Also known as transposition of the great vessels (TGV), TGA is a rare but serious disorder that affects one of every 4,000 to 10,000 births. 1 There are two types of TGA that differ based on the vessels and heart chambers involved: 1
What happens to the heart with L transposition?
Like patients with atrial repair of d-TGA, the right ventricle may weaken, leading to congestive heart failure. Abnormally slow heart rhythms may cause fainting or fatigue. The most worrisome slow heart rhythm, complete heart block, is common in l-transposition. Rapid heart rhythms are less common than in d-TGA patients.
Which is less dangerous I transposition or d Transposition?
The I-transposition, however, is less dangerous than a d-transposition because the great arteries are also reversed. This “double reversal” allows the body to still receive oxygen-rich blood and the lungs to still receive the oxygen-poor blood. What causes it?