Medina classification assigns a binary value (1,0) to the three components of a coronary bifurcation depending on whether have > (1) or < (0) 50% lesion.
Coronary bifurcations with an angle of less than 70 degrees are known as Y-shaped bifurcation and those with more than 70 degrees T-shaped bifurcation.
The presence of hypertension in AS makes it (left ventricle) a double loaded LV with valvular obstruction and vascular resistance presenting dual loads.