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Interrupted aortic arch support group6/21/2023 ![]() 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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