Tests performed when diagnosing interrupted aortic arch may include: Your doctor may also refer you to a pediatric cardiologist if your child is breathing fast or has weak pulses in the lower extremities, poor exercise tolerance (for babies, this means poor feeding), or an enlarged liver. If your pediatrician suspects increased blood flow in the right atrium, a recommendation to see a pediatric cardiologist may be made. During physical examinations, your child’s doctor listens to your child’s heart and lungs and may detect a heart murmur, which are extra sounds heard throughout the cardiac cycle due to increased blood flow. Interrupted aortic arch is often diagnosed by ultrasound before the baby is born. Sleepiness (more than normal) or lethargy.Lower oxygen saturations in the legs, causing legs to appear blue or dusky in color (cyanosis).Symptoms of interrupted aortic arch may include: Symptoms of interrupted aortic arch typically develop in the first 1 to 2 days of life and require urgent intervention and care. If the diagnosis of an interrupted aortic arch is made, chromosome analysis should be performed. Some patients with an interrupted aortic arch also experience other medical conditions, such as DiGeorge Syndrome (also referred to as 22Q11 deletion syndrome), which is a chromosomal disorder and can result in the poor development of several body systems. When patients are diagnosed with an interrupted aortic arch, they almost always have a hole between the two pumping chambers of their heart ( ventricular septal defect), which allows the mixing of oxygen-rich and oxygen-poor blood and causes the blood to not be as oxygenated as it should be. Type C (4-5%): The interruption occurs between the innominate artery (supplies blood to right arm, head, and neck) and the left carotid artery (supplies blood to head and neck).Type B (50-60%): The interruption occurs between the left carotid artery (supplies blood to head and neck) and the left subclavian artery (supplies blood to upper thorax, below the clavicle).Type A (30-40%): The interruption occurs just beyond the left subclavian artery (supplies blood to upper thorax, below the clavicle).The three different types of interruption are: Interruptions are classified based on the location of where the interruption occurs. When a diagnosis of an interrupted aortic arch is made, it means that there is a disruption (missing portion) of the aorta. The remainder of the aorta supplies blood to the body and legs. These three arteries include the innominate artery, the left carotid artery, and the left subclavian artery. As the aorta begins to curve, there are three major arteries that arise from it to supply the head and arms with blood. The aorta starts at the heart and arches up and curves down in a shape that resembles a candy cane. The aorta is the large blood vessel that arises (branches) from the left ventricle of the heart and carries oxygen-rich blood from the heart to all areas of the body.
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