Figure 1:

(A) Circular ring for subvalvular aortic annuloplasty: (1) the commissural zone and (2) the intercommissural zone. (B) The three crown-like shaped ring for the sinotubular junction annuloplasty. (C) The circular ring is sutured into the left ventricular outflow tract just under the aortic valve cusps. (D) The sinotubular junction ring is sutured from outside the ascending aorta at the level of the sinotubular junction. The three vertical arms of the sinotubular junction ring were fifixed to the underlying circular ring to stabilize the continuity between the two structures and to reshape the functional annulus.