The aorta originated from the left ventricle, first ascending in the thoracic cavity, then descending at the left margin of the mediastinum behind the sternum, and the reentry point is the aortic arch. The blood flow in this place suddenly turns, which impacts the blood vessel wall and easily damages the aortic intima. After a long time, atherosclerotic plaque can be formed, and then calcification, that is, calcification of aortic arch.
Extended data
clinical picture
Congenital aortic valve disease may have no obvious symptoms in early childhood. The common symptoms of aortic valve disease are palpitation, shortness of breath and angina pectoris after fatigue. In the case of severe aortic stenosis or aortic insufficiency, angina pectoris is especially serious because of the serious shortage of coronary blood supply. Mild to moderate aortic stenosis or insufficiency may also be completely asymptomatic.
In the case of simple aortic stenosis, rough systolic murmurs can be heard in the aortic valve area and spread to the neck. However, in the case of aortic valve double lesion or severe insufficiency, in addition to the typical murmur in the aortic valve area, a large back-and-forth blowing murmur can be heard along the second aortic valve area of the left sternum. The contraction part passes through the second intercostal space along the right sternum to the neck, and the relaxation part passes down the left sternum to the apex.
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