Angiogram (projection RAO 5°, CAUD 25°): CTO of LAD, significant disease of the first diagonal branch, mild disease of the LM, 80% lesion in the ostial circumflex artery (see the yellow arrow). The segment of the RITA graft between the left circumflex and the PDA artery was widely patent (see the green arrow) but with a limited distal flow. Distal occlusion of the PDA artery (see the red arrow).