Case 5

Case 5a:


Case 5b:


Case 5a should be described in the SYNTAX score as one lesion involving segment 5 and segment 11 – lesion characteristic: Bifurcation class 1,0,1.
Note that the main distal vessel should be the branch with the largest diameter. In 5A, the LAD (segment 6) is the main distal vessel.

Case 5b should be described in the SYNTAX score as one lesion involving segment 5 and segment 11 – lesion characteristic: Bifurcation class 1,1,0
Note that the main distal vessel should be the branch with the largest diameter. In 5B, the LCX (segment 11) is the main distal vessel.