In patients greater than age 65, more than 90% of aortic stenosis involves trileaflet valves which have developed heavy calcification. [5] In these instances the calcium deposits are thought to ...

Forty eight patients had a bicuspid aortic valve, 30 patients had a trileaflet valve, and in 46 patients it was difficult to differentiate between a bicuspid and a trileaflet valve; thus, a bicuspid ...

There are three main forms of aortic valve disease: congenital abnormalities, such as a bicuspid valve that leads to premature calcification; calcification of the normal trileaflet valve ...

Aortic stenosis (AS) occurs when the orifice of the aortic valve is significantly reduced due to the failure of the aortic valve leaflets to open fully during systole. This causes an effective ...

Aortic stenosis may be caused by rheumatic disease, a congenital bicuspid valve or calcification of a trileaflet valve. In Europe and North America, the aetiology of aortic stenosis most often is ...

1 Echocardiographic examination plays an important role in the diagnosis with the view of X-shaped commissural aortic valve pattern in diastole compared to the ‘Y’ morphology in the trileaflet valve.

Large and rare duplications and deletions in a chromosome region known as 22q11.2 , which involves genes that regulate ...

Aortic stenosis occurs when the orifice of the aortic valve is significantly reduced due to the failure of the aortic valve leaflets to open fully during systole. This causes an effective increase ...