In patients greater than age 65, more than 90% of aortic stenosis involves trileaflet ... the normal opening of the aortic cusps. The cause of this calcification is unknown. It is thought that ...
When aortic stenosis occurs, there is a tightening and oftentimes calcification of the aortic valve and that leads that valve to not be pliable but very rigid. And when the valve can't open ...
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