Yes, although it somewhat depends on where the enlargement is. Even so, the bypass or 'scrape' happens regardless of what is around the vessel, including enlarged vessels. Often the enlargement is more internal than external, meaning the walls of the vessel enlarge, but inward, cutting available volume. This thickening of the wall and reduced volume is what we want to avoid, but you have some of that. You don't say what descriptor was used, or fed back to you, about the extent of enlargement.
This surgery is routine, if tricky for every case, and you'll have an experienced and skilled surgeon working on your heart, a specialist in vascular surgery.