What to know about variable heart rhythms and AFib
An Ohio State cardiac electrophysiologist shares what to know about heart rhythms and AFib.
Transposition of the great arteries is a rare congenital heart defect involving an abnormal arrangement of the aorta and the pulmonary arteries (the two major arteries carrying blood away from the heart). The aorta rises from the right ventricle instead of the left, and the pulmonary artery rises from the left ventricle instead of the right. This condition is recognized early, often at birth. Transposition of the great arteries should be treated promptly to avoid complications. Even with treatment, patients diagnosed with this condition remain at risk for complications throughout adulthood. Therefore, regular lifelong care by a cardiologist who specializes in congenital heart conditions is important.
Transposition of the great arteries occurs during fetal development. In most cases, the cause is unknown.
Risk factors may include:
If your family has a history of congenital heart defects, you may want to consider consulting with a genetic counselor, who may recommend genetic testing.
The primary symptom is cyanosis (bluish coloration of the skin due to low oxygen levels in the blood). Infants who display this symptom are sometimes referred to as blue babies. In addition to cyanosis, symptoms include shortness of breath, lack of appetite and failure to gain weight.
Babies born with transposition of the great arteries must have surgery to correct the heart defect.
If surgery is not immediately possible, medications can help to manage the condition until surgery occurs. Prostaglandins, a medication to dilate the blood vessels, may be recommended before a baby is ready for surgery.
A cardiac catheterization procedure can enlarge the connection between the heart’s upper chambers and improve oxygen delivery throughout the body until surgery is possible.
Transposition of the great arteries surgery
Surgical procedures to treat transposition of the great arteries include:
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