主动脉瓣狭窄和推广的关键rctation of aorta is that aortic stenosis refers to the narrowing of the aortic valve, while coarctation of aorta refers to the narrowing of the aorta. Atresia, coarctation and stenosis are three types of obstruction heart defects. In some cases, heart values are narrowed, blocked or missing. Stenosis refers […]

