Conclusions
The luminal diameter and flow of vascular grafts of the CABG patients
who underwent in situ left IMA bypass increased after the
operation, and the flow of vascular grafts at 1 week postoperatively was
significantly greater than the intraoperative level. The angle between
IMA-subclavian artery affected the postoperative flow of vascular graft.
Therefore, related parameters of left proximal IMA in the postoperative
follow-up could be used to assess the patency of vascular grafts in the
patients.