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| overriding aorta ： ウィキペディア英語版 |
overriding aorta
An overriding aorta is a congenital heart defect where the aorta is positioned directly over a ventricular septal defect (VSD), instead of over the left ventricle. The result is that the aorta receives some blood from the right ventricle, causing mixing of oxygenated and deoxygenated blood, and thereby reducing the amount of oxygen delivered to the tissues.
It is one of the four findings in the classic tetralogy of Fallot. The other three findings are right ventricular outflow tract (RVOT) obstruction (most often pulmonary stenosis), right ventricular hypertrophy (RVH), and the aforementioned VSD.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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