At baseline, the mechanical valve group tended to be younger (55.7 vs 65.2) and had less aortic stenois (82.4% vs 89.5%), but ...

[6] Originally this division was made by echocardiography. In patients with an aortic valve area index (AVAi) beneath 0.6cm 2, flow was measured by indexed stroke volume (SVI). Gradients were ...

Another important area of research has focused on the mechanisms driving calcific aortic valve disease. It has been established that factors such as age, congenital abnormalities, and lifestyle ...

Left ventricular outflow tract (LVOT) diameter may be measured for valve area calculation ... with a dimensionless index of: V1/V2 ≠ 0.80/4.57 0.18 indicative of severe aortic stenosis.Pk ...